WorldWideScience

Sample records for ballistic missile defense

  1. Ballistic Missile Defense System (BMDS)

    Science.gov (United States)

    2015-12-01

    Estimate RDT&E - Research , Development, Test, and Evaluation SAR - Selected Acquisition Report SCP - Service Cost Position TBD - To Be Determined TY - Then...all ranges and in all phases of flight. Following guidance from the President, the Secretary of Defense approved the Ballistic Missile Defense (BMD...based Midcourse Defense (GMD) system to enhance our capability against Intercontinental Ballistic Missiles. We are currently sustaining 30

  2. Ballistic Missile Defense: New Plans, Old Challenges

    Directory of Open Access Journals (Sweden)

    Elizabeth Zolotukhina

    2010-01-01

    Full Text Available On September 17, 2009—the 70th anniversary of the Soviet invasion of Poland in 1939 that marked the beginning of World War II—the Obama Administration announced its intention to shelve plans for the U.S. Ballistic Missile Defense (BMD that had been developed under former President George W. Bush. Pointing to a new intelligence assessment, President Obama argued that his predecessor's plan to deploy an X-band radar station outside of Prague, Czech Republic, and 10 two-stage interceptor missiles in Poland would not adequately protect America and its European allies from the Iranian threat and reiterated his opposition to utilizing unproven technology in any European BMD architecture.

  3. Quadrennial Defense Review and Ballistic Missile Defense Review

    Science.gov (United States)

    2010-03-11

    global defense posture 3 BMDR Highlights • Outlines a strategy and policy framework to – Defend the homeland against limited ballistic missile attack...abroad – Collaborate closely with allies and partners – Pursue a cooperative and tailored global defense posture – Strengthen US civilian capacity...reviews in 2010 – QDR and BMDR released February 1, 2010 – Nuclear Posture Review to be released this spring – Space Posture Review, with Director of

  4. Ballistic Missile Defense. Past and Future

    Science.gov (United States)

    2010-04-01

    and deployed. These are the two big questions of the anti-ballistic missile ( ABM ) debate. It must be emphasized that the...is the extreme polarization of the opposing positions that have been taken. Consider this statement: “The whole ABM question touched off so intense...earlier that same year by the Washington Post and ABC News11 reported that 80 percent of the American population was in favor of building a missile

  5. Missile Defense: Ballistic Missile Defense System Testing Delays Affect Delivery of Capabilities

    Science.gov (United States)

    2016-04-28

    Ballistic Missile Defense System Testing Delays Affect Delivery of Capabilities For over half a century , the Department of Defense (DOD) has been...or bi-annually in support of its goals for the defense of regional allies and U.S. forces deployed to Asia -Pacific, the Middle East, and Europe, known

  6. Long-Range Ballistic Missile Defense in Europe

    Science.gov (United States)

    2010-04-26

    Standard Missile 3) missile defenses. Czech President Vaclav Klaus pronounced himself unsurprised by the announcement, and assured that he was “100...was holding the six-month revolving European Union (EU) presidency. On May 15, President Vaclav Klaus announced the installation of an interim...September 17, 2009. 5 Withdrawal From Radar No Cooling of Czech-U.S. Relations – Klaus . CTK Daily News. September 17, 2009. . Long-Range Ballistic Missile

  7. The Full Costs of Ballistic Missile Defense

    Science.gov (United States)

    2003-01-01

    Krepinovich, “Defense Transformation,” and Paul Wolfowitz , “Transformation,” Prepared testimony, Senate Armed Services Committee, April 9, 2002...Massive Cash Infusion,” Aviation Week and Space Technology, April 22, 2002.9 Matthew L. Wald , “White House Cuts 93% of Funds Sought to Guard Atomic Arms

  8. Russian Ballistic Missile Defense: Rhetoric and Reality

    Science.gov (United States)

    2015-06-01

    debate on key issues. This report is cleared for public release; distribution is unlimited. ***** This publication is subject to Title 17, United States...19 Aleksandr Tar- nayev, a member of the Russian State Duma Defense Committee, complained that due to insufficient funds, the VKO command could not...pointed out a key difference in American and Russian threat perceptions regarding IRBMs: “They cannot reach America, but they can very well reach us

  9. Active infrared systems: possible roles in ballistic missile defense?

    Science.gov (United States)

    Paleologue, A.

    2006-05-01

    Active Infra-Red (IR) systems developed in the past ten years are now available for missile defense applications. The main purpose of this paper is to describe the advantages an active IR system could offer to a ballistic missile defense (BMD). The active IR system considered in this paper is a LIDAR (LIght Detection And Ranging) system. Historically, the Lincoln Laboratory in the USA began using lasers in the early 1960's. The initial applications included the development of a LIDAR system enabling the measurement of the distance between the earth and the moon in 1962. Satellite tracking using LIDAR began early in 1973. Today, technological developments, with the miniaturization of systems and increased performance levels, have enabled new ambitious projects such as the Discrimination Interceptor Technology Program (DITP) program started in 1998 and the use of LIDAR to help in the discrimination of future exo-atmospheric interceptors within the framework of BMD. The first part of this paper presents the possible contribution of LIDAR to BMD: the main roles, objectives, and strategic advantages. The second part gives a brief overview of the technological features of a generic LIDAR instrument, rapidly addressing laser sources, detectors, optics and electronics. Finally, a modeling of an IR LIDAR system, limited solely to direct detection, and an estimation of performance levels will be presented. A list of possible IR active discriminators will be then presented on the basis of the previous analysis and proposed as new constraints in the design of discrete objects.

  10. Theater Ballistic Missile Defense Policy, Missions and Programs: Current Status

    Science.gov (United States)

    2007-11-02

    destroy its target. A French-Italian program called SAMP/T (Sol-Air Moyenne Portee/ Terrestre ) is being considered for a point defense system; further...Patriot PAC-3 missile. The Multimode Missile includes semi-active track- via -missile guidance, improved propulsion and uses an aimed blast

  11. China and ballistic missile defense: 1955 to 2002 and beyond

    Energy Technology Data Exchange (ETDEWEB)

    Brad, Roberts

    2004-07-01

    China's opposition to U.S. ballistic missile defense was forcefully articulated officially and unofficially between 1991 and 2001. Vociferous opposition gave way to near silence following U.S. ABM Treaty withdrawal, raising a question about precisely whether and how China will respond to future U.S. deployments in both the political and military-operational realms. To gauge likely future responses, it is useful to put the experience of the 1991-2001 period into historical context. China's attitudes toward BMD have passed through a series of distinct phases since the beginning of the nuclear era, as China has been concerned alternately with the problems of strategic defense by both the Soviet Union and United States (and others) around its periphery. Throughout this era it has also pursued its own strategic defense capabilities. There are important elements of continuity in China's attitudes concerns about the viability of its own force and about strategic stability. These suggest the likelihood of significant responses to U.S. BMD even in the absence of sharp rhetoric. (author)

  12. The science, technology, and politics of ballistic missile defense

    Science.gov (United States)

    Coyle, Philip E.

    2014-05-01

    America's missile defense systems are deployed at home and abroad. This includes the Groundbased Missile Defense (GMD) system in Alaska and California, the Phased Adaptive Approach in Europe (EPAA), and regional systems in the Middle East and Asia. Unfortunately these systems lack workable architectures, and many of the required elements either don't work or are missing. Major review and reconsideration is needed of all elements of these systems. GMD performance in tests has gotten worse with time, when it ought to be getting better. A lack of political support is not to blame as the DoD spends about 10 billion per year, and proposes to add about 5 billion over the next five years. Russia objects to the EPAA as a threat to its ICBM forces, and to the extensive deployment of U.S. military forces in countries such as Poland, the Czech Republic and Romania, once part of the Soviet Union. Going forward the U.S. should keep working with Russia whose cooperation will be key to diplomatic gains in the Middle East and elsewhere. Meanwhile, America's missile defenses face an enduring set of issues, especially target discrimination in the face of attacks designed to overwhelm the defenses, stage separation debris, chaff, decoys, and stealth. Dealing with target discrimination while also replacing, upgrading, or adding to the many elements of U.S. missiles defenses presents daunting budget priorities. A new look at the threat is warranted, and whether the U.S. needs to consider every nation that possesses even short-range missiles a threat to America. The proliferation of missiles of all sizes around the world is a growing problem, but expecting U.S. missile defenses to deal with all those missiles everywhere is unrealistic, and U.S. missile defenses, effective or not, are justifying more and more offensive missiles.

  13. The science, technology, and politics of ballistic missile defense

    Energy Technology Data Exchange (ETDEWEB)

    Coyle, Philip E. [Center for Arms Control and Non-Proliferation, Washington, DC (United States)

    2014-05-09

    America's missile defense systems are deployed at home and abroad. This includes the Groundbased Missile Defense (GMD) system in Alaska and California, the Phased Adaptive Approach in Europe (EPAA), and regional systems in the Middle East and Asia. Unfortunately these systems lack workable architectures, and many of the required elements either don't work or are missing. Major review and reconsideration is needed of all elements of these systems. GMD performance in tests has gotten worse with time, when it ought to be getting better. A lack of political support is not to blame as the DoD spends about $10 billion per year, and proposes to add about $5 billion over the next five years. Russia objects to the EPAA as a threat to its ICBM forces, and to the extensive deployment of U.S. military forces in countries such as Poland, the Czech Republic and Romania, once part of the Soviet Union. Going forward the U.S. should keep working with Russia whose cooperation will be key to diplomatic gains in the Middle East and elsewhere. Meanwhile, America's missile defenses face an enduring set of issues, especially target discrimination in the face of attacks designed to overwhelm the defenses, stage separation debris, chaff, decoys, and stealth. Dealing with target discrimination while also replacing, upgrading, or adding to the many elements of U.S. missiles defenses presents daunting budget priorities. A new look at the threat is warranted, and whether the U.S. needs to consider every nation that possesses even short-range missiles a threat to America. The proliferation of missiles of all sizes around the world is a growing problem, but expecting U.S. missile defenses to deal with all those missiles everywhere is unrealistic, and U.S. missile defenses, effective or not, are justifying more and more offensive missiles.

  14. System Architecture for Anti-Ship Ballistic Missile Defense (ASBMD)

    OpenAIRE

    Hobgood, Jean; Madison, Kimberly; Pawlowski, Geoffrey; Nedd, Steven.; Roberts, Michael; Rumberg, Paige

    2009-01-01

    Approved for public release; distribution is unlimited. Recent studies suggest that China is developing a new class of ballistic missiles that can be used against moving targets, such as ships. One such technology is anticipated to cover a range of 2,000 kilometers and operate at a speed of Mach 10. The threat is also capable of maneuvering both during the midcourse and terminal flight phases for the purposes of guidance, target acquisition, and countermeasures. This threat could greatl...

  15. 1997 Report to the Congress on Ballistic Missile Defense.

    Science.gov (United States)

    2007-11-02

    be modified to the Block IVA TBMD configuration. This area defense program will provide a lower-tier or endoatmospheric intercept capability. The...and ADCP completed operational testing and evaluation at White Sands Missile Range, New Mexico . A successful TMD demonstration was conducted as part of...UOES FY 99) Sea Lower PAC-3 Configuration Three (FUE FY 99) Navy Theater Wide TBMD AEGIS With SM-2 Block IVA (FUE FY 02; UOES Software

  16. Iranian Ballistic Missile Threat and a Phased, Adaptive Approach for Missile Defense in Europe: Perceptions, Policies and Scenarios

    Science.gov (United States)

    2010-09-15

    critical challenges that endanger peace. The institute has offices in New York, Brussels and Moscow. In May 2009, EWI published a report titled...Program: Treading Water in Shark -Infested Seas,” The Heritage Foundation, April 8, 2010, http://www.heritage.org/Research/Reports/2010/04/The-Obama...Administrations-Ballistic-Missile- Defense-Program-Treading-Water-in- Shark -Infested-Seas. 129 Ibid. 57 an ICBM until 2020 (using the SM-3 Block

  17. 2014 Assessment of the Ballistic Missile Defense System (BMDS)

    Science.gov (United States)

    2015-03-23

    and necessary training aids and devices are not currently available and are not scheduled to become available for several years. Analyses of data...and Evaluation ( IOT &E) flight tests for the Aegis BMD 4.0 system and SM-3 Block IB missile. Outcome. INTERCEPT. The ship detected, tracked...missiles in a raid scenario. FTX-18 was the last of the three IOT &E test missions. Outcome. THREE SIMULATED INTERCEPTS. The ship detected, tracked

  18. Digital Array Radar for Ballistic Missile Defense and Counter-Stealth Systems Analysis and Parameter Tradeoff Study

    Science.gov (United States)

    2006-09-14

    Missile BMD Ballistic Missile Defense CAS Computer Algebra System CDD Capability Development Document CONOPS Concept of Operations CONUS Continental...this section. Analysis and calculations described in this section were conducted using Waterloo Maple® 7 Computer Algebra System (CAS). Initially...When two or more electromagnetic waves combine, their electric fields are integrated vectorially at each point in space for any

  19. Ballistic Missile Defense Final Programmatic Environmental Impact Statement

    Science.gov (United States)

    2008-02-15

    The main type of batteries to be considered would be reserve lithium thionyl chloride (Li/SOCl2 ), and reserve lithium /iron disulfide (Li/FeS 2... Lithium Thionyl Chloride Electric power supply to Lithium /Iron Disulfide onboard missile guidance Zinc/Silver Oxide systems Pyrotechnic Material Lithium ...production. Power sources are needed for GBIs and space-based elements. GBI would utilize a battery power source to power internal systems. However

  20. Ballistic Missile Defense System (BMDS) Programmatic Environmental Impact Statement

    Science.gov (United States)

    2007-01-01

    for decommissioning the BMDS to prot(lct the Uruted ~tatoo lU.~.J . ns depbyed forces . friends. and aUlas hom b~Uistic missile throats. The...intcr~contincmal balh:. tic 7) The President would, m reaffirm the entire L’l’- de\\’cl<I•Pmcn:, human rigl:ts ~;caic. leader the ratitlcatlon...aspi."Ct’< oft he Balli~ tic Miss1k DetCnsc (BMD) pwgrarn. Acid rain; The MDA ihcl:·noti..’S i:1 the ?EIS the pn:.sibility cfa..:id rain cuuseC

  1. Strategic culture and ballistic missile defense: Russia and the United States. Master's thesis

    Energy Technology Data Exchange (ETDEWEB)

    Becker, M.D.

    1993-06-01

    This thesis examines U.S. and Russian history and current policy debates to advance understanding of: (1) the strategic cultures of these nations, particularly with respect to BMD policies in the recent past; and (2) whether and how their strategic cultures and approaches to BMD are changing and how that may affect future strategic BMD developments and the status of the ABM Treaty. The development of BMD strategies, including policies concerning the ABM Treaty, within the framework of the established American and Russian strategic cultures is studied, with due attention to the Soviet experience and legacy in the Russian case. U.S. strategic culture does not seem to have changed significantly with the end of the Cold War, but U.S. BMD priorities have been redefined to reflect a higher priority attached to regional and theater-level defenses. It is apparent that the Soviet experience did have a significant impact on Russian strategic culture. Faced with major changes in its international status, domestic political-military arrangements, and scope of national security concerns, Russian strategic culture is nonetheless moving beyond the old Soviet culture. Future Russian policies regarding the transfer of BMD technology, sharing early warning data, and participating in a global protective system are heavily dependent on domestic political developments. United States, Russia, USSR, Strategic culture, Ballistic missile defense, National strategy, Nuclear strategy, Strategic defense, ABM Treaty, Arms control, Strategic stability.

  2. Sea-Based Ballistic Missile Defense - Background and Issues for Congress

    Science.gov (United States)

    2009-12-22

    Aegis ships. The program involved modifying the SM-2 Block IV air-defense missile. The missile, as modified, was called the Block IVA version. The...system was designed to intercept descending missiles endo-atmospherically (i.e., within the atmosphere) and destroy them with the Block IVA missile’s...the SBX radar in Texas.52 SBX underwent sea trials and high- power radiation testing in the Gulf of Mexico in 2005. It was then moved by a heavy

  3. Modeling Of Ballistic Missile Dynamics

    Directory of Open Access Journals (Sweden)

    Salih Mahmoud Attiya

    2013-05-01

    Full Text Available Aerodynamic modeling of ballistic missile in pitch plane is performed and the open-loop transfer function related to the jet deflector angle as input and pitch rate, normal acceleration as output has been derived with certain acceptable assumptions. For typical values of ballistic missile parameters such as mass, velocity, altitude, moment of inertia, thrust, moment and lift coefficient show that, the step time response and frequency response of the missile is unstable. The steady state gain, damping ratio and undraped natural frequency depend on the missile parameters. To stabilize the missile a lead compensator must be added to the forward loop.

  4. Missile Defense Agency Ballistic Missile Defense System (BMDS): Programmatic Environmental Impact Statement. Volume 2. Appendices A - J

    Science.gov (United States)

    2007-01-01

    radar, somebody from Valdez was worried about that it was going to set off airbags in cars, set off fire extinguishers, some kind of...24 behavior. I think ever since the advent of the 25 missile age, if I can recall , I could be wrong, some B-322... recalled for purposes such as conducting testing operations. This airspace is controlled by the Holloman AFB radar approach control facility, by

  5. Physics of a ballistic missile defense - The chemical laser boost-phase defense

    Science.gov (United States)

    Grabbe, Crockett L.

    1988-01-01

    The basic physics involved in proposals to use a chemical laser based on satellites for a boost-phase defense are investigated. After a brief consideration of simple physical conditions for the defense, a calculation of an equation for the number of satellites needed for the defense is made along with some typical values of this for possible future conditions for the defense. Basic energy and power requirements for the defense are determined. A sumary is made of probable minimum conditions that must be achieved for laser power, targeting accuracy, number of satellites, and total sources for power needed.

  6. Attacking the Theater Mobile Ballistic Missile Threat

    Science.gov (United States)

    1993-06-01

    and Record, �Theater Ballistic Missile Defense and US Contingency Operations,� 13. 43Greg Myre, Associated Press, �De Klerk Reveals South African...possession). ____. Briefing, subject: �WarBreaker.� 17 December 1992. Myre, Greg. Associated Press. �De Klerk Reveals South African Nuclear...April�3 May 1992, 1,44. Ordway, Frederick I. III and Ronald C. Wakeford. International Missile and Spacecraft Guide. New York: McGraw

  7. 基于TOPSIS的战区高层反导威胁评估%Threat Assessment of the High Altitude Area Ballistic Missile Defense Based on TOPSIS

    Institute of Scientific and Technical Information of China (English)

    范学渊; 邢清华; 黄沛; 王小光

    2012-01-01

    Firstly, the characteristics of the high altitude area ballistic missile defense' s threat assessment are analyzed. Then the threat assessment's model index system is set up and quantitated, such as launch position of tactical ballistic missile (TBM) , forecasting impact point, range and so on. Finally, the theory of technique for order preference by similarity to idea solution (TOPSIS) based on weight of entropy is used to compute the model. The result shows that the threat assessment' s model and the algorithm is effective and useful for developing the battle manage of the high altitude area ballistic missile defense ' s.%在分析战区高层反导威胁评估特点的基础上,建立了以来袭TBM发射点、预测落点、射程等为核心的战区高层反导威胁评估模型指标体系并进行了相应的量化,然后利用基于熵值权重确定的TOPSIS理论对模型进行求解.通过实例证明所提出的战区高层反导威胁评估模型和算法的有效性,对研究美军的战区高层反导武器系统具有一定的借鉴意义.

  8. NATO and U.S. Ballistic Missile Defense Programs: Divergent or Convergent Paths?

    Science.gov (United States)

    2008-12-01

    making framework. It is common for TMD systems to be developed and deployed via bilateral negotiations. The only TMD project that has been subject to...sol-air moyenne portée- terrestre , that is, a ground based surface- to-air medium-range missile. 52 “Aster 30 SAMP/T – Surface-to-Air Missile Platform...alone rather than via a joint development with Alliance members that have expressed interest. Additionally, some European members of the Alliance

  9. Ballistic Missile Defense in the European Theater: Political, Military and Technical Considerations

    Science.gov (United States)

    2007-04-15

    in a ground-based system, called the Sol-Air Moyen Portee/ Terrestre (SAMP/T) that uses the Aster 15 and the Aster 30 missiles with a range of up to...development processes “ via a spiral pathway culminating in an operator-in-the- 107 COL Tim Polaske Chief...Reentry Vehicle SAMP/T Sol-Air Moyen Portee/ Terrestre SBI Space Based Interceptor SBIRS Space Based Infrared Satellite SHAPE

  10. The Cooperative Ballistic Missile Defence Game

    NARCIS (Netherlands)

    Evers, L.; Barros, A.I.; Monsuur, H.

    2013-01-01

    The increasing proliferation of ballistic missiles and weapons of mass destruction poses new risks worldwide. For a threatened nation and given the characteristics of this threat a layered ballistic missile defence system strategy appears to be the preferred solution. However, such a strategy involv

  11. Ballistic Missile Defense Organization, Advance Planning Briefing for Industry, Updated Agenda, Attendance Roster, Proceedings.

    Science.gov (United States)

    1994-03-01

    Registration) Updated Agenda 2 Attendance Roster 3 Program Overview 21 Biographies of the Principal Speakers 28 SLIDES: "The Worldwide Missile Threat...229-5800 x Mr. C. Lee Newton Sverdrup Technology Inc PO Box 1935, Bldg 260 Eglin A F B FL 32542-0935 (904) 678-2001 x Dv. David A. Nichols...922-7350 x Dr. Gary H. Weissman LNK Corporation» Inc. Suite 306 6811 Kenilworth Avenue Riverdale MD 20737-1333 (301) 927-3223 x Mr. Isaac

  12. Ballistic Missile Defense: Let's Look Again before We Leap into Star Wars.

    Science.gov (United States)

    Morrison, David C.

    1985-01-01

    Americans must look beyond the superficial allure of President Reagan's Strategic Defense Initiative; they must search out the facts. Five pernicious myths on which this ill-considered proposal is founded are discussed. (RM)

  13. Building a Persian Gulf Ballistic Missile Defense Umbrella: A Comparative Case Study Analysis of Regional Phased Adaptive Approaches

    Science.gov (United States)

    2013-06-01

    Atlantic Treaty Organization NMD National Missile Defense NPT Nuclear Non-Proliferation Treaty OPEC Organization of Petroleum Exporting Countries PAC...2012 Key World Energy Statistics,” www.iea.org, 10; Organization of the Petroleum Exporting Countries, “ OPEC Share of World Crude Oil Reserves 2011...St. Martin’s: 2010), 321; “ OPEC Oil Embargo, 1973–1974,” U.S. Department of State Office of the Historian, http://history.state.gov/milestones/1969

  14. Ballistic Missile Defense: Actions Needed to Address Implementation Issues and Estimate Long-Term Costs for European Capabilities

    Science.gov (United States)

    2014-04-01

    forces, and allies against inbound threat missiles. In December 2011, DOD deployed the initial phase of a revised approach for Europe, with...the United States, U.S. forces, and allies around the world against inbound threat missiles. In 2009, the President announced a revised approach for...allocating resources. In addition, we reviewed the Army’s regulation on Integrated Logistic Support, which includes guidance on business-case analysis

  15. Ballistic Missile Silo Door Monitoring Analysis

    Energy Technology Data Exchange (ETDEWEB)

    EDENBURN,MICHAEL W.; TROST,LAWRENCE C.

    2000-01-01

    This paper compares the cost and effectiveness of several potential options that may be used to monitor silo-based ballistic missiles. Silo door monitoring can be used to verify that warheads removed to deactivate or download silo-based ballistic missiles have not been replaced. A precedent for monitoring warhead replacement using reentry vehicle on site inspections (RV-OSIs) and using satellites has been established by START-I and START-II. However, other monitoring options have the potential to be less expensive and more effective. Three options are the most promising if high verification confidence is desired: random monitoring using door sensors; random monitoring using manned or unmanned aircraft; and continuous remote monitoring using unattended door sensors.

  16. Ballistic Missile Defense Review Report

    Science.gov (United States)

    2010-02-01

    attack, including through more aggressive denial and deception practices as well as a shift to mobile systems.  Some states are also developing...Avionics Upgrade/Obsolescence Program ( FAU /OP). The Department will also emphasize proven capabilities by requesting funding for additional GMD... practical solutions to emerging challenges, solutions that involve all elements of national power. In addition, by working with allies and partners to

  17. Research on ballistic missile laser SIMU error propagation mechanism

    Institute of Scientific and Technical Information of China (English)

    Wei Shihui; Xiao Longxu

    2008-01-01

    It is necessary that the laser inertial system is used to further improve the fire accuracy and quick reaction capability in the ballistic missile strapdown inertial navigation system. According to the guidance con-trolling method and the output and error model of ballistic missile laser SIMU, the mathematical model of error propagation mechanism is set up and any transfer environmental function of error coefficient that affects the fire accuracy is deduced. Also, the missile longitudinal/lateral impact point is calculated using MATLAB. These estab-lish the technical foundation for further researching the dispersion characteristics of impact point and reducing the laser guidance error.

  18. Design and Manufacturing Process for a Ballistic Missile

    Directory of Open Access Journals (Sweden)

    Zaharia Sebastian Marian

    2016-12-01

    Full Text Available Designing a ballistic missile flight depends on the mission and the stress to which the missile is subject. Missile’s requests are determined by: the organization of components; flight regime type, engine configuration and aerodynamic performance of the rocket flight. In this paper has been developed a ballistic missile with a smooth fuselage type, 10 control surfaces, 8 directional surfaces for cornering execution, 2 for maneuvers of execution to change the angle of incidence and 4 stabilizers direction. Through the technology of gluing and clamping of the shell and the use of titanium components, mass of ballistic missile presented a significant decrease in weight and a structure with high strength.

  19. The Effectiveness of the U.S. Missile Defense Capabilities as a Deterrent to the North Korean Missile Threat

    Science.gov (United States)

    2007-12-01

    THE U.S. MISSILE DEFENSE CAPABILITIES AS A DETERRENT TO THE NORTH KOREAN MISSILE THREAT by Issac G. Gipson December 2007 Thesis Advisor...SUBJECT TERMS Missile Deterrence, Missile Defense , North Korean Missile Threat, North Korean Missile Systems, U.S. Missile Defense Capabilities, 16...19 III. CURRENT MISSILE DEFENSE ANALYSIS AGAINST NORTH KOREAN MISSILE THREAT

  20. Joint Theater Missile Defense in Taiwan: Protecting United States Interests and Friends

    Science.gov (United States)

    2007-11-02

    people in a disproportionately short period and where the consequences of its release overwhelms local responders. 67 APPENDIX A CHINESE BALLISTIC...2004, Ballistic Missile Defense. Airborne Laser The Airborne Laser (ABL) consists of a high-energy, chemical oxygen iodine laser (COIL) mounted

  1. Aerodynamic heating of ballistic missile including the effects of gravity

    Indian Academy of Sciences (India)

    S N Maitra

    2000-10-01

    The aerodynamic heating of a ballistic missile due to only convection is analysed taking into consideration the effects of gravity. The amount of heat transferred to the wetted area and to the nose region has been separately determined, unlike A Miele's treatise without consideration of gravity. The peak heating ratesto the wetted area and to the nose of the missile are also investigated. Finally four numerical examples are cited to estimate the errors, in heat transfers and heating ratesto both wetted area and nose region of the missile, arising out of neglecting the gravitational forces.

  2. The North Korean Ballistic Missile Program

    Science.gov (United States)

    2008-02-01

    Future Preemptive Strikes against North Korea ,” The Korean Journal of Defense Analysis, Vol. 18, No. 4, Winter 2006, pp. 95-121. 194. Joseph S...University of California, San Diego; and Korea University. He also served as a Korean linguist in the United States Air Force. His publications have...appeared in Asian Perspective, Astropolitics, The Journal of East Asian Studies, The Korea Journal of Defense Analysis, The KNDU Review, The

  3. Robust Hybrid Control for Ballistic Missile Longitudinal Autopilot

    Institute of Scientific and Technical Information of China (English)

    WAEL Mohsen Ahmed; QUAN Quana

    2011-01-01

    This paper investigates the boost phase's longitudinal autopilot of a ballistic missile equipped with thrust vector control.The existing longitudinal autopilot employs time-invariant passive resistor-inductor-capacitor (RLC) network compensator as a control strategy,which does not take into account the time-varying missile dynamics.This may cause the closed-loop system instability in the presence of large disturbance and dynamics uncertainty.Therefore,the existing controller should be redesigned to achieve more stable vehicle response.In this paper,based on gain-scheduling adaptive control strategy,two different types of optimal controllers are proposed.The first controller is gain-scheduled optimal tuning-proportional-integral-derivative (PID) with actuator constraints,which supplies better response but requires a priori knowledge of the system dynamics.Moreover,the controller has oscillatory response in the presence of dynamic uncertainty.Taking this into account,gain-scheduled optimal linear quadratic (LQ) in conjunction with optimal tuning-compensator offers the greatest scope for controller improvement in the presence of dynamic uncertainty and large disturbance.The latter controller is tested through various scenarios for the validated nonlinear dynamic flight model of the real ballistic missile system with autopilot exposed to external disturbances.

  4. Near Term Command and Control of Homeland Air and Missile Defense

    Science.gov (United States)

    2003-01-01

    grounded the aircraft prior to take off. Special Operations forces might be best suited to eliminate a terrorist cell with minimal collateral 32 damage. We...Review. 27 March 2002. HAER No. ND-9 (Excerpt from Historic American Engineering Record,) Safeguard Ballistic Missile Defense Center ( BMDC ). Heller

  5. A Predictive Explicit Guidance Scheme for Ballistic Missiles

    Directory of Open Access Journals (Sweden)

    N. Prabhakar

    2013-09-01

    Full Text Available A new approach to the design of ballistic missile guidance is presented in this paper. The proposed method uses the missile model to predict the likely impact point at every guidance cycle and apply course corrections based on the predicted impact point (PIP deviations. The algorithm also estimates the in-flight thrust variation from nominal and accordingly updates the model to reduce the uncertainty in the prediction of the impact point. The performance of the algorithm is tested through 6-DOF simulation. The simulation results show excellent performance of the proposed guidance scheme in nominal & off nominal cases.Defence Science Journal, 2013, 63(5, pp.456-461, DOI:http://dx.doi.org/10.14429/dsj.63.2575

  6. Ballistic Missile Warhead Recognition based on Micro-Doppler Frequency

    Directory of Open Access Journals (Sweden)

    Sun Hui-Xia

    2008-11-01

    Full Text Available To elucidate the spinning-precession signatures of ballistic warhead, the model of spinning precessionfor ballistic missile warhead is established and the mathematics of micro-Doppler signatures caused by spinning-precession is derived. Then the micro-Doppler features are analysed using high-resolution time-frequencytransform, and the model predictions match the experimental data well. Based on  different mass of warheadsand decoys, the feature, which can reflect the mass of the targets, is extracted from the time-frequency plane,proving a new method for recognising warheads and discriminating these from decoys. Finally the validityof the feature extracted in this study is verified by computer simulations even with low signal-to-noise ratio.Defence Science Journal, 2008, 58(6, pp.705-709, DOI:http://dx.doi.org/10.14429/dsj.58.1697

  7. Minimum Ballistic Factor Problem of Slender Axial Symmetric Missiles

    Directory of Open Access Journals (Sweden)

    V. B. Tawakley

    1979-01-01

    Full Text Available The problem of determining the geometry of slender, axisymmetric missiles of minimum ballistic factor in hypersonic flow has been solved via the calculus of variations under the assumptions that the flow is Newtonian and the surface averaged skin-friction coefficient is constant. The study has been made for conditions of given length and diameter, given diameter and surfacearea, and given surface area and length. The earlier investigations/sup 8/ where only regular shapes were determined has been extended to cover those class of bodies which consist of regular shapes followed or preceded by zero slope shapes.

  8. The Future of Theater Missile Defense

    Science.gov (United States)

    1994-06-01

    withERINT) 1,500 IVf 74C 1998 3.0 Navy Lower-Tier Defense 1,820 SO4 50* 1999° 3* THAAD(withTMD-GBR) 1,313 80 14 2001e 9.1 AdvaaoedCapabflitylMD Systems...Administration cannot, by itself, provide a sufficient buffer between theater and strategic missile defenses. Other limits must be included. Finally, the

  9. European Missile Defense and Russia

    Science.gov (United States)

    2014-07-01

    a scheduled September 2013 summit meeting with his Russian counterpart, Vladimir Putin , “lack of prog- ress on issues such as missile defense” was...Monaghan INTRODUCTION When U.S. President Barack Obama cancelled a scheduled September 2013 summit meeting with his Russian counterpart, Vladimir Putin ...without the possibility of retaliation.12 According to then Soviet leader Yuri Andropov, who, like his successor Vladimir Putin , had moved into a

  10. Radar signal analysis of ballistic missile with micro-motion based on time-frequency distribution

    Science.gov (United States)

    Wang, Jianming; Liu, Lihua; Yu, Hua

    2015-12-01

    The micro-motion of ballistic missile targets induces micro-Doppler modulation on the radar return signal, which is a unique feature for the warhead discrimination during flight. In order to extract the micro-Doppler feature of ballistic missile targets, time-frequency analysis is employed to process the micro-Doppler modulated time-varying radar signal. The images of time-frequency distribution (TFD) reveal the micro-Doppler modulation characteristic very well. However, there are many existing time-frequency analysis methods to generate the time-frequency distribution images, including the short-time Fourier transform (STFT), Wigner distribution (WD) and Cohen class distribution, etc. Under the background of ballistic missile defence, the paper aims at working out an effective time-frequency analysis method for ballistic missile warhead discrimination from the decoys.

  11. Theater Missile Defense Integration Issues

    Science.gov (United States)

    1993-06-01

    high endoatmospheric defense interceptor (HEDI) proposed t earlier. EADTB. Extended Air Defense Test Bed. A computer-based analysis center for...for attacking deeper elements of an aggressors’s ground forces. Known in NATO as Follow-on Force Attack ( FOFA ). JSTARS. Joint surveillance target...AFIA/INKS ATTN. INKS AFIS/INT ATTN: INT AIR hORCE CTR FOR STUDIES & ANALYSIS ATTN: AFSAA/SAKI 9 Dist-1 w^mmmm mmmm^-mmmemH

  12. The proliferation of aerospace weapons technology: Ballistic missiles and the case of Brazil

    Science.gov (United States)

    Vossen, Terrence John

    1993-04-01

    The rationale behind the development of ballistic missile production in Brazil is examined by exploring the political, military, and economic determinants of ballistic missile demand in that country. To ascertain how Brazil developed missile production capabilities, the contributions of aerospace industries in industrialized states, the Brazilian space program, trade between less-developed countries, and illicit trade in missile technology are assessed. It is argued that missile development increasingly became a function of economic as opposed to security considerations, and that technologies transferred from developed country aerospace firms and Brazil's space program were primarily responsible for the creation of production capabilities. It is also contended that the proliferation of missile technology to Brazil was consistent with the workings of a system evident in the aerospace weapons technology market that sustains the horizontal spread of weapons production capabilities.

  13. The effectiveness of the U.S. missile defense capabilities as a deterrent to the North Korean missile threat

    OpenAIRE

    Gipson, Issac G.

    2007-01-01

    Over the last five years, America has placed an ever-increasing emphasis on missile defense and currently spends nearly $10 billion annually on its development. The United States' current missile Defense system is integrated; it depends on the cooperation of defensive elements aboard ships, on land, in the air and space. The objective is to provide a layered defense with multiple opportunities to destroy an incoming missile. By investing heavily in missile defense technology, the United ...

  14. Application of Extended Kalman Filter to Tactical Ballistic Missile Re-entry Problem

    CERN Document Server

    Bhowmik, Subrata

    2007-01-01

    The objective is to investigate the advantages and performance of Extended Kalman Filter for the estimation of non-linear system where linearization takes place about a trajectory that was continually updated with the state estimates resulting from the measurement. Here tactile ballistic missile Re-entry problem is taken as a nonlinear system model and Extended Kalman Filter technique is used to estimate the positions and velocities at the X and Y direction at different values of ballistic coefficients. The result shows that the method gives better estimation with the increase of ballistic coefficient.

  15. ORAL HEALTH OF OPERATING FLEET BALLISTIC MISSILE SUBMARINE CREWS: A CROSS-SECTIONAL SURVEY.

    Science.gov (United States)

    A cross-sectional survey of two fleet ballistic missile submarine crews revealed no remarkable oral health factors. A close relationship was found...effects of FBM submarine service on oral health could be demonstrated; however, in view of the isolated nature of the FBM patrols great stress needs to

  16. The Effects of Fleet Ballistic Missile Submarine Patrols on Oral Health

    Science.gov (United States)

    Maintenance of optimum oral health for Fleet Ballistic Missile submarine personnel is a continuing effort. Information is required concerning oral ... health status and patrol effects on this status. Ninety-one crew members of the USS JOHN MARSHALL (SSBN 611 (Gold)) were evaluated predeployment, during

  17. Cooperative Monitoring Center Occasional Paper/9: De-Alerting Strategic Ballistic Missiles

    Energy Technology Data Exchange (ETDEWEB)

    Connell, Leonard W.; Edenburn, Michael W.; Fraley, Stanley K.; Trost, Lawrence C.

    1999-03-01

    This paper presents a framework for evaluating the technical merits of strategic ballistic missile de-alerting measures, and it uses the framework to evaluate a variety of possible measures for silo-based, land-mobile, and submarine-based missiles. De-alerting measures are defined for the purpose of this paper as reversible actions taken to increase the time or effort required to launch a strategic ballistic missile. The paper does not assess the desirability of pursuing a de-alerting program. Such an assessment is highly context dependent. The paper postulates that if de-alerting is desirable and is used as an arms control mechanism, de-alerting measures should satisfy specific cirteria relating to force security, practicality, effectiveness, significant delay, and verifiability. Silo-launched missiles lend themselves most readily to de-alerting verification, because communications necessary for monitoring do not increase the vulnerabilty of the weapons by a significant amount. Land-mobile missile de-alerting measures would be more challenging to verify, because monitoring measures that disclose the launcher's location would potentially increase their vulnerability. Submarine-launched missile de-alerting measures would be extremely challlenging if not impossible to monitor without increasing the submarine's vulnerability.

  18. Application of fleet ballistic missile components/designs for expendable launch vehicles

    Science.gov (United States)

    Grizzell, Norman E.

    This paper describes the orbital performance and configuration attributes of an expendable launch vehicle (ELV) derived from flight-qualified components. Representative logistical and programmatic data are also provided. The backbone of the ELV program described is the cost-effective use of proven Fleet Ballistic Missile components/designs coupled with other high confidence 'off-the-shelf' equipment. The ELV defined can place over a thousand pounds (1000 lb) of spacecraft (payload) into Low Earth Orbit.

  19. Non-Slender Missile Geometries of Minimum Ballistic Factor via Calculus of Variations

    Directory of Open Access Journals (Sweden)

    Manak Singh

    1986-01-01

    Full Text Available The problem of determining the geometry of non-slender axisymmetric missile of minimum ballistic factor in hypersonic flow has been solved via calculus of variation under the assumption that the flow is Newtonian and the surface averaged skin friction coefficient is constant. The study has been made for conditions of given diameter and surface area. The results obtained have been compared with those obtained by the method of gradient technique.

  20. Air Force Intercontinental Ballistic Missile Fuze Modernization (ICBM Fuze Mod)

    Science.gov (United States)

    2015-12-01

    Production FY - Fiscal Year FYDP - Future Years Defense Program ICE - Independent Cost Estimate IOC - Initial Operational Capability Inc - Increment JROC...Performance 12 Track to Budget 13 Cost and Funding 14 Low Rate Initial Production 21 Foreign Military Sales 22 Nuclear Costs 22 Unit...Document CLIN - Contract Line Item Number CPD - Capability Production Document CY - Calendar Year DAB - Defense Acquisition Board DAE - Defense

  1. Air and Missile Defense Radar (AMDR)

    Science.gov (United States)

    2015-12-01

    March 8, 2016 11:04:34 UNCLASSIFIED 4 CAPT Seiko Okano 1333 Isaac Hull Ave , SE Washington, DC 20376-7101 seiko.okano@navy.mil Phone: 202-781-0461 Fax: DSN...to the combat system. AMDR will be deployed on the Guided Missile Destroyer (DDG) 51 Flight III. AMDR December 2015 SAR March 8, 2016 11:04:34...Abbreviations Ao - Operational Availability CMS - Combat Management System DDG - Guided Missile Destroyer kW - Kilowatt TTL - Training Task List AMDR December

  2. Integrated Air and Missile Defense (IAMD)

    Science.gov (United States)

    2013-12-01

    Base Year DAMIR - Defense Acquisition Management Information Retrieval Dev Est - Development Estimate DoD - Department of Defense DSN - Defense...Schedule Milestones SAR Baseline Dev Est Current APB Development Objective/Threshold Current Estimate MS B DEC 2009 DEC 2009 JUN...2010 DEC 2009 CDR AUG 2011 MAY 2012 MAY 2013 MAY 2012 MS C DEC 2014 JUN 2015 JUN 2016 AUG 2016 1 (Ch-1) IOT &E Start JAN 2016 MAR 2016 MAR 2017 OCT 2017

  3. Study on the Spline Filter Algorithm in Ballistic Missile Boost-phase%弹道导弹主动段样条滤波算法

    Institute of Scientific and Technical Information of China (English)

    张峰; 田康生

    2012-01-01

    对弹道导弹主动段进行跟踪是弹道导弹主动段防御中极其重要的任务,它是制导拦截的基础.针对传统方法在弹道导弹主动段跟踪能力不足,建立了弹道导弹主动段样条滤波算法.该滤波算法首先用样条函数建立了主动段运动模型,其次在此基础上将运动状态进行了解耦,建立了状态方程,最后基于解耦模型,应用Kalman滤波进行了状态估计,并且在估计中设计了模型更新方法,使算法具有很好的机动跟踪性能.仿真实验证明,该跟踪算法估计精度高于其它算法.%The tracking of ballistic missile under boost-phase is extremely important in the missile early defense program. It is the base of interception. In respect that traditional methods have essential deficiency on the tracking of ballistic missile under boost-phase, this paper introduces a filter algorithm based on spline modeling. First, a ballistic missile under boost-phase motion model is established based on spline function. Then movement state is decoupled. Equation of State is established. At last, based on the decoupling model, state is estimated by using Kalman Filter. This paper has designed a model updating method in order to make it capable of maneuver target tracking. The simulation result shows that this algorithm has high precision and good performance.

  4. Trident II (D-5) Sea Launched Ballistic Missile UGM 133A (Trident II Missile)

    Science.gov (United States)

    2015-12-01

    Production FY - Fiscal Year FYDP - Future Years Defense Program ICE - Independent Cost Estimate IOC - Initial Operational Capability Inc - Increment JROC...Performance 11 Track to Budget 12 Cost and Funding 14 Low Rate Initial Production 28 Foreign Military Sales 29 Nuclear Costs 29...Development Document CLIN - Contract Line Item Number CPD - Capability Production Document CY - Calendar Year DAB - Defense Acquisition Board DAE - Defense

  5. REALIZATION OF GPS/SST/SINS INTEGRATED NAVIGATION FILTER ALGORITHM FOR BALLISTIC MISSILE

    Institute of Scientific and Technical Information of China (English)

    KANGGuo-hua; LIUJian-ye; ZHUYan-hua; XIONGZhi

    2005-01-01

    Considering the domestic single navigation system of the ballistic missile, a new filter method is presented. The method integrates the information of the strapdown star tracker (SST) attitude, the position and the velocity of a high speed GPS with a strapdown inertial navigation system (SINS) information into one filter, thus improving the precision of the attitude, the velocity, and the position. Finally, the GPS/SST/SINS simulation platfornt is designed. Simulation results demonstrate that the filter is robust and reliable, and the precision rises to the comparative level abroad.

  6. Boost-Phase ballistic missile trajectory estimation with ground based radar

    Institute of Scientific and Technical Information of China (English)

    Tang Yuyan; Huang Peikang

    2006-01-01

    A conditional boost-phase trajectory estimation method based on ballistic missile (BM) information database and classification is developed to estimate and predict boos-phase BM trajectory. The main uncertain factors to describe BM dynamics equation are reduced to the control law of trajectory pitch angle in boost-phase. After the BM mass at the beginning of estimation, the BM attack angle and the modification of engine thrust denoting BM acceleration are modeled reasonably, the boost-phase BM trajectory estimation with ground based radar is well realized. The validity of this estimation method is testified by computer simulation with a typical example.

  7. Asia-Pacific Missile Defense Cooperation and the United States 2004-2005: A Mixed Bag

    Science.gov (United States)

    2005-02-01

    in cooperating with the United States on various missile defense -related programs. Such close friends and allies as South Korea and Taiwan have made...many local opponents of missile defense argue that the missile threat to Australia is quite low, particularly as North Korea does not yet possess any...2004 in cooperating with the United States. Overall, South Korea does not appear to regard the North Korean missile threat as very likely. Based on

  8. Joint Counterair and Theater Missile Defense Doctrine to Defend against Unmanned Aerial Vehicles and Cruise Missiles in Asymmetric Warfare

    Science.gov (United States)

    2009-02-12

    state lasers, and a megawatt-class Chemical Oxygen Iodine Laser (COIL) to detect, track, target, and destroy ballistic missiles shortly after launch... disproportionate cost tradeoff between threat weapon systems and the proposed interceptors. With a price tag of over $1M per interceptor such as Patriot

  9. Open Architecture as an Enabler for FORCEnet Cruise Missile Defense

    Science.gov (United States)

    2007-09-01

    battlespace via the FORCEnet information network. Current capability gaps include a lack of common configuration and Fire Control Quality ( FCQ ...connectivity among platforms that is needed to achieve and maintain a robust cruise missile defense. FCQ is defined as data obtained with the sufficient...platform, or a combination of the two. With Fire Control Quality ( FCQ ) threat data from a remote sensor, the remote unit can initiate a launch

  10. External Peer Review Report on the Missile Defense Agency Office of Internal Review

    Science.gov (United States)

    2015-05-14

    No. DODIG-2015-123 M A Y 1 4 , 2 0 1 5 External Peer Review Report on the Missile Defense Agency Office of Internal Review Report Documentation...3. DATES COVERED 00-00-2015 to 00-00-2015 4. TITLE AND SUBTITLE External Peer Review Report on the Missile Defense Agency Office of Internal... REVIEW SUBJECT: External Peer Review Report on the Missile Defense Agency Office of Internal Review (Report No. DODIG-2015-123) Attached is the

  11. Conventional Prompt Global Strike and Long-Range Ballistic Missiles: Background and Issues

    Science.gov (United States)

    2010-10-25

    Prompt Global Strike’ Raises Bar for Intel Community.” Inside The Air Force. June 22, 2007. 11 U.S. Department of Defense, Nuclear Posture Review...CRS Report for Congress Prepared for Members and Committees of Congress Conventional Prompt Global Strike and Long-Range Ballistic...DATE 25 OCT 2010 2. REPORT TYPE 3. DATES COVERED 00-00-2010 to 00-00-2010 4. TITLE AND SUBTITLE Conventional Prompt Global Strike And Long

  12. 2015 Assessment of the Ballistic Missile Defense System (BMDS)

    Science.gov (United States)

    2016-04-01

    Patriot. The Command and Control, Battle Management, and Communications (C2BMC) element anchors the sensor/command and control architecture. This...included in the classified version of this report. The MDA conducted 13 flight test events and 4 ground tests during FY/calendar year 2015 (CY15...that collected data on overall BMDS effectiveness. Flight Test Operational-02 (FTO-02) Event 1a (December 2015) provided a demonstration of the Aegis

  13. Ballistic Missile Defense Glossary Version 3.0.

    Science.gov (United States)

    2007-11-02

    pulsed electro- magnetic radiation. A thin layer of the object’s surface violently and rapidly boils off; the resulting vapor suddenly exerts pressure...Standards Institute. The ratio of the power available at the terminals of an antenna to the incident power density of a plane wave from the direction...resultant presentation to become a random series of tonal impressions. Execution of acquisition strategy to convert some parts or systems components from

  14. Seeing 2020: America’s New Vision for Integrated Air and Missile Defense

    Science.gov (United States)

    2015-01-01

    the U.S. Army Air Corps began Operation Crossbow, the Anglo-American bombing campaign against Adolf Hitler’s V-1 and V-2 missile forces and a...science of war and its weapons matured, the development of improved propulsion, guidance, and payloads in guns, artillery, rockets, mortars , aircraft...range of threats to include short- and intermediate-range ballistic missiles, bombers, and tactical weapons such as artillery, rockets, and mortars

  15. 导弹防御系统中红外光电识别技术分析%Analyses on infrared optoelectronics recognition technology in missile defense system

    Institute of Scientific and Technical Information of China (English)

    吴瑕; 周焰; 崔建; 杨龙坡

    2009-01-01

    目标识别问题是弹道导弹防御系统中的核心难题之一,针对弹道导弹突防中威胁目标群飞行各阶段呈现出的不同红外特性.介绍了天基红外系统和拦截弹的最新研究进展及其红外目标识别技术手段.在温度测量、测辐射强度、红外成像等关键技术方面,系统地论述了其在反导系统弹道目标识别中所运用的红外光电子学方法与技术,并且就相应的反红外识别手段--红外隐身与红外诱饵,进行了探讨.最后对导弹防御系统中红外目标识别与反识别的研究动向进行了展望,提出了进行导弹防御系统目标识别研究的总体建议.%The target recognition is one of the core difficult problems of ballistic missile defense system. According to the different infrared characteristics of all sorts of dangerous targets in the apiece phases of ballistic missile flying, the newest development and the technical means of infrared target recognition for SBIRS and kinetic kill vehicle were introduced. The means and technologies of infrared optoelectronics applying in target recognition were depicted systematically considering the development of some key technologies, such as infrared temperature measurement, radiant intensity test and infrared imaging. Infrared stealth and infrared decoy technique were also discussed, which were the relevant infrared target counter-recognition means and technologies during ballistic missile attacking. Finally, some new representative developments for infrared target recognition and counter-recognition in ballistics missile defense system were expected, and some general suggestions to develop target recognition in ballistic missile defense system were provided.

  16. Summarize of Target Characteristics and Recognition of Ballistic Missile in Trajectory Midcourse%弹道导弹中段目标特性及识别综述

    Institute of Scientific and Technical Information of China (English)

    高乾; 周林; 王森; 陈曦

    2011-01-01

    Target recognition is one of core difficult problems in GMD(ground-based midcourse defense) system. Firstly, it analyzes ballistic missile's aviate characteristics. It introduces main penetration method that ballistic missile may adopt in midcourse. Secondly it analyzes recognized method on trajectory target in midcourse, such as, target recognition based on high resolution range profiles,micro-RCS, micro-Doppler, temperature change rate, infrared imaging, and target recognition to active decoys. In the end, it analyzes merit and demerit of every target recognition methods, and the development foreground of the recognition is analyzed.%目标识别是弹道导弹防御系统中的核心难题之一.首先,分析了弹道导弹在中段的飞行特性,介绍了弹道导弹在中段可能采取的突防措施.其次,分析了当前弹道中段目标的识别方法:基于一维距离像目标识别、基于微雷达散射横截面积(radar cross-section,RCS)目标识别、基于微多普勒目标识别、基于温度变化率目标识别、基于红外成像目标识别以及对有源假目标的识别.最后,对各识别方法的优劣及发展前景作了简要分析.

  17. Study on Method for Simultaneously Tracking and Classifying Ballistic Missile in Boost and Post-boost Phase%弹道导弹助推段同时跟踪和类型识别算法研究

    Institute of Scientific and Technical Information of China (English)

    陈映; 程臻; 文树梁

    2011-01-01

    It is meaningful to tracking ballistic missile in boost phase precisely by forward ground-based radar for the whole antimissile defensive system. The paper presents a new method to track ballistic missile in boost and post-boost phase based on prior database. At first, the paper extracts characteristic dynamic parameters of ballistic missile, and analyzes the sensitivities of these parameters and gives a time invariant dynamic model with parameters; then the paper simulates the performance for tracking ballistic missile in boost and post-boost phase with IMM and IUF algorithm. Compared with other dynamic models and algorithms, this new method has much higher tracking precision and by calculating the model transition prohabilities, it can classify the ballistic missiles and indicates the burnout time accurately. The simulation results validate the new method.%前置地基雷达跟踪助推段弹道导弹对整个反导防御系统有着重要意义.本文提出了一种以情报数据库为先验知识的弹道导弹助推段及后助推段跟踪方法.首先从动力学角度提取导弹助推段飞行的特征参量,并对参量的敏感度进行了分析,给出了一种参变的助推段弹道导弹时不变运动模型.然后结合交互式多模型(IMM)和迭代无敏滤波(IUF)算法进行助推段及后助推段弹道导弹跟踪仿真.与采用其他的运动模型和滤波算法相比,该方法能实现对弹道导弹助推段及后助推段更高精度的跟踪,同时结合情报数据库通过计算模型转移概率可完成导弹类型初判别,并准确指示导弹关机时刻.文章通过仿真验证了该算法的有效性.

  18. A History of Polish Anti-Missile Defenses

    Science.gov (United States)

    1994-01-01

    tanks, 1,750 armored personnel carriers, transport 11 aircraft, helicopters, and several naval craft.ŕ The WOPK provided air space management and...targets which included missile-related threats.90 Comunnication was an integral part of missile warning. Since Poland’s WOPK was part of the PVOS, Warsaw

  19. The North Korean Missile Program

    Science.gov (United States)

    Wright, David

    2001-04-01

    In recent years, the development of ballistic missiles by North Korea has been a key motivation for US efforts to stem missile proliferation and to develop defenses against intermediate and long-range missiles. In the 1980s, North Korea reverse-engineered short-range Soviet Scud missiles and began to produce and sell them. In 1993, it flight-tested a missile reported to have a range of up to 1,300 kilometers, which would allow it to target most of Japan. In 1998, it launched a multi-stage missile over Japan; it later announced that the launch had been an attempt to place a satellite in orbit. An important question is what these tests imply for its current capability and its possible future missile development. Since North Korea has sold missiles to countries in the Middle East and South Asia and is reported to be assisting Iran's missile development program, understanding its capabilities is relevant to security concerns in several parts of the world. In this talk I will discuss my analysis of the publicly available information about North Korea's missile tests, and my conclusions about possible future developments. This includes estimates of ranges and payloads of its next potential generation of missiles, and comments about their potential military utility.

  20. Missiles for Asia The Need for Operational Analysis of U.S. Theater Ballistic Missiles in the Pacific

    Science.gov (United States)

    2016-01-01

    number can be based on land. Land-based missiles have multiple basing modes to ensure their survivability. Modern silos can be very hard, requiring very...Chinese military modernization and that it would not be difficult because Russian leaders have previously expressed reservations about the treaty. 16...durability of the Intermediate-Range Nuclear Forces Treaty is in doubt. • China’s rapid military modernization could threaten U.S. forces. • Theater

  1. Complaint Regarding the Use of Audit Results on a $1 Billion Missile Defense Agency Contract

    Science.gov (United States)

    2014-09-12

    our scope and methodology. See Appendix B for the sequence of events. Background Missile Defense Agency MDA is a research , development, and...a $2.07 billion cost-plus-fixed/award-fee1 proposal submitted by a DoD contractor for the Ground-Based Midcourse Defense (GMD) Core Completion...negotiated, DCAA discontinued its audit of the GMD proposal. MDA Did Not Consider the DCAA Preliminary Audit Results DFARS Procedures, Guidance , and

  2. Back to the Future: Integrated Air and Missile Defense in the Pacific

    Science.gov (United States)

    2015-02-01

    Add to those the Aegis system, ground-based air defense, and short-ranged air defense to destroy an adversary’s inbound air threats. By combining...Technology Demonstra- tion. Designed to protect critical, vulnerable assets through the most cost -effective application of hardening/ resiliency methods...ability to /( flush-launch" (rapid engine start, taxi, and takeoff) alert aircraft upon receipt of warnings of tactical inbound missiles and

  3. The Peak of Rocket Production: The Designer of Ballistic Missiles V.F. Utkin (1923-2000)

    Science.gov (United States)

    Prisniakov, V.; Sitnikova, N.

    2002-01-01

    achievements V. Utkin and his pupils are crea- tion unique "mortar" launching of a heavy liquid rocket from shaft, the decision of a complex of prob- lems on maintenance ready for military action (continuous attendance) of liquid rockets in the filled condi-tion for many years, maintenance of stability of rockets at action on them of striking factors of nuclear explosion. With personal participation of academician IAA V. Utkin the following large scien- tific and technical results were received: (a) a military railway rocket complex with intercontinental solid-propellant rocket with starting weight of 105 tons and with 10 warheads; (b) a method of war manage-ment with the help of command rockets; (c) a method of definition of characteristics of means of overcoming of antimissile defense; (d) war intercontinental rockets with the increased accuracy, with the survivability, with the availability for action; (e) a commanding rocket. Design' decisions not ha- ving the analogues in world: (a) managements of flight solid-propellant an intercontinental ballistic missiles by means of a deviating head part; (b) managements solid-propellant rocket by method of inje- ction of gas in supercritical part of nozzle; (c) industrial introduction of the newest materials etc.V. Ut- kin is the active participant of works in the field of the international cooperation in research and deve- lopment of a space. In 1990 V. Utkin hold a high post of the director of ZSNIIMACH which is leading organization of a space-rocket industry of Russia. Under manual V. Utkin the Federal space program of Russia was developed. V. Utkin had huge authority as the chairman of Advice of the Main designers of the USSR. He was the co-chairman combined commission of experts V. Utkin - T. Stafford" on problems of maintenance joint manned flights. He was the chairman of Coordination advice under the program of researches on manned space complexes. V. Utkin dreamed to be the active participant of a new stage of the outer

  4. HOMA: Israel’s National Missile Defense Strategy (Abridged Version)

    Science.gov (United States)

    2007-11-02

    developed by Tadiran Electronics Systems), and the Hazelnut Tree launcher control center.28 Each battery is designed to track and counter —14 enemy...Communications center, (4) HAZELNUT TREE fire control center, (5) GREEN PINE radar antenna, (6) Radar control center, (7) Radar power unit, (8) Radar...cooling unit. A battery has four launch vehicles with six ready missiles each, a Tadiran Citron Tree launch control centre, a Hazelnut Tree fire

  5. Findings From Existing Data on the Department of Defense Industrial Base: Guided Missile and Space Vehicle Manufacturing Example

    Science.gov (United States)

    2015-04-30

    Guided Missile and Space Vehicle Manufacturing Example Nancy Y. Moore, RAND Corporation Clifford A. Grammich, RAND Corporation Judith D. Mele, RAND...TITLE AND SUBTITLE Findings From Existing Data on the Department of Defense Industrial Base: Guided Missile and Space Vehicle Manufacturing Example...Missile and Space Vehicle Manufacturing industry example to illustrate how the DoD can gain information on its industrial base from data the federal

  6. Regional Power Ballistic Missiles. An Emerging Threat to Deployed US forces?

    Science.gov (United States)

    1990-05-01

    accurate, solid fuel SS-23 SPIDER . (21:54,55; 17:50;4:1426) However, the INF Treaty is now eliminating the SS-23s, and Soviet Military Power 1989 states that...from the other regional powers. When development Is completed, the Iraqi- Argentine Condor-Il will provide an additional missile In this range class

  7. Defense Science Board Task Force Report on Cyber Defense Management

    Science.gov (United States)

    2016-09-01

    initialeffort. Preferably, this system will be associated with an F-35 wing or Ballistic Missile Defense (BMD) DSB TASK FORCE ON CYBER DEFENSE CHAPTER 4...Warning and Control SystemBCT brigade combat teamBMD Ballistic Missile DefenseBN battalionC&A certification and accreditationC2 command and controlC4ISR...Richard Hale DoD CIO Ms. Jenine Patterson DoD CIO Members Mr. Christopher W. Day Packet Forensics Ms. Lynn A. Dugle Private Consultant Mr. Page Hoeper

  8. 弹道导弹威胁估计模型构建%Research on Model Building of Ballistic Missile Threat Assessment

    Institute of Scientific and Technical Information of China (English)

    朱艺; 肖兵; 林傲; 张锋; 王海燕

    2016-01-01

    简要分析了弹道导弹飞行3个阶段的不同特点及各阶段导弹预警探测手段的侧重点,结合威胁估计的特征构建了弹道导弹威胁估计模型结构框架,运用多阶段贝叶斯网络理论,构造了主动段、自由段和再入段威胁估计模型,并明确了三阶段间的转换时机。采用动态贝叶斯方法对弹道导弹作战全过程进行威胁估计仿真推理,仿真结果能够反映导弹在飞行过程中威胁程度的变化特点,为反导指挥员作出辅助决策提供智力支持。%This paper briefly introduces different features in three phases of ballistic missile and focuses in different detection methods of missile early warning according to the features of threat assessment ,It establishes the threat assessment model pattern of ballistic missile. Through applying multi-phase Bayesian theory ,it builds a assessment model which includes boost phase,free phase,and re-entry phase and clarifies proper transformation opportunity among three phases. Besides ,it reasons and simulates the whole battle process of ballistic missile so as to get threat assessment results which reveals the traits of missiles regarding to changes during the flight and to offer intelligent assistance working as auxiliary decisions to commanders.

  9. Navy Ohio Replacement (SSBN[X]) Ballistic Missile Submarine Program: Background and Issues for Congress

    Science.gov (United States)

    2013-10-22

    Missile Submarine Program Congressional Research Service F. Woolf , discusses the SSBN(X) as an element of future U.S. strategic nuclear forces in the...Report RL33640, U.S. Strategic Nuclear Forces: Background, Developments, and Issues, by Amy F. Woolf . 3 In the designations SSN, SSGN, SSBN, and SSBN(X...missions than do SSN operations. For more on the Navy’s SSNs and SSGNs, see CRS Report RL32418, Navy Virginia (SSN-774) Class Attack Submarine

  10. Echoes That Never Were: American Mobile Intercontinental Ballistic Missiles, 1956-1983

    Science.gov (United States)

    2006-05-11

    the remains of three old launch facilities now surrounded by the ubiquitous ice plant and sweet-smelling wildflowers of the California chaparral...1956-1983 Steven Anthony Pomeroy Doctor of Philosophy, May 11, 2006 (M.A., California State University, 1994) (B.A., Pennsylvania State University...the humanities from the California State University. He has had extensive experience in missile and space launch operations, education, training

  11. Origins of the Strategic Defense Initiative: Ballistic Missile Defense, 1944-1983

    Science.gov (United States)

    1989-12-01

    stories about various inventors who claimed to have developed "death rays" that could kill animals and people. One of the most famous was Nikola Testla...1 " Tesla , at 78, Bares New ’Death-Beam’," New York Times, 11 July 1934, p. 18. For other stories about death rays, see "Says He Sold ’Death Ray’: H

  12. Missile Defense Agency Ballistic Missile Defense System (BMDS): Programmatic Environmental Impact Statement. Volume 1 Final BMDS PEIS

    Science.gov (United States)

    2007-01-01

    dwarfed shrubs and miniature wildflowers adapted to a short growing season. Species resident in arctic tundra have evolved adaptations peculiar to high...strong northeast winds, the likelihood of pollutants remaining in the ambient air is low. Heavy industrial activities, high automobile traffic, and...bodies. Some perennial surface waters could be impacted following a flight termination. However, the probability of any individual water body, spring

  13. Missile Defense Agency Ballistic Missile Defense System (BMDS): Programmatic Environmental Impact Statement. Volume 3 Appendices K - N

    Science.gov (United States)

    2007-01-01

    K.2.1 Castor Rachel DC_M0217 K.2.1 Cathcart Mary DC_M4026 UCS K.2.1 Caton Barney DC_M1750 UCS K.2.1 Catrambone Natalie DC_M3934 UCS K.2.1 Caturegli...professional and nonprofit groups who specialize in public health, emergency response, sewage treatment, landfills , water, environment, toxicology, science...nonprofit groups who specialize in public health, emergency response, sewage treatment, landfills , water, environment, toxicology, science, medicine

  14. Missile Defense: Opportunity to Refocus on Strengthening Acquisition Management

    Science.gov (United States)

    2013-05-09

    defense operations, see the battle develop, and manage networked sensors and weapon systems. Ground-based Midcourse Defense (GMD) A ground-based...However, this retest also failed in December 2010 due to the effects of vibration on the kill vehicle’s guidance system. As a result of these...the life cycle— research and development, procurement, military construction, GAO-13-432. 15Pub. L. No. 110-181, § 223(g), repealed by Pub. L. No

  15. Modular Open System Architecture for Reducing Contamination Risk in the Space and Missile Defense Supply Chain

    Science.gov (United States)

    Seasly, Elaine

    2015-01-01

    To combat contamination of physical assets and provide reliable data to decision makers in the space and missile defense community, a modular open system architecture for creation of contamination models and standards is proposed. Predictive tools for quantifying the effects of contamination can be calibrated from NASA data of long-term orbiting assets. This data can then be extrapolated to missile defense predictive models. By utilizing a modular open system architecture, sensitive data can be de-coupled and protected while benefitting from open source data of calibrated models. This system architecture will include modules that will allow the designer to trade the effects of baseline performance against the lifecycle degradation due to contamination while modeling the lifecycle costs of alternative designs. In this way, each member of the supply chain becomes an informed and active participant in managing contamination risk early in the system lifecycle.

  16. Another Brick in the Wall: The Israeli Experience in Missile Defense

    Science.gov (United States)

    2015-04-01

    become the most iconic system of Israel’s military power as evidenced during Operation PILLARS OF DEFENSE (2012) and Operation PROTECTIVE EDGE (2014...system that would unexpectedly become the most iconic system of Israeli military power: the Iron Dome. Along with Iron Dome, a third missile...According to an IDF official interviewed by Reuters, “We don’t have the money here to pay for the infrastructure .”51 Whereas David’s Sling is barely

  17. Navy Ohio Replacement (SSBN[X]) Ballistic Missile Submarine Program: Background and Issues for Congress

    Science.gov (United States)

    2015-12-17

    Savings: From NASA Rocket Boosters To Reused Access Doors,” Breaking Defense (http://breakingdefense.com), April 7, 2014. 41 Navy information paper on...account). The NSBDF was created by Section 1022 of the Carl Levin and Howard P. “ Buck ” McKeon National Defense Authorization Act for Fiscal Year 2015...Levin and Howard P. ‘‘ Buck ’’ McKeon National Defense Authorization Act for Fiscal Year 2015 (Public Law 113–291) to address a congressional

  18. Missile Defense: DOD’s Report Provides Limited Insight on Improvements to Homeland Missile Defense and Acquisition Plans

    Science.gov (United States)

    2014-07-17

    1 As part of this system, the Department of Defense (DOD) has already deployed 30 ground-based interceptors—consisting of a booster with a kill...determines if the new EKV and booster components work as intended and, according to acquisition best practices, should be conducted before production...Appropriations United States Senate The Honorable Howard P. “ Buck ” McKeon Chairman The Honorable Adam Smith Ranking Member Committee on Armed

  19. The Regional Dimension of Romania's Participation to the Anti-Missile Defense System

    Directory of Open Access Journals (Sweden)

    Florin Iftode

    2015-08-01

    Full Text Available The current security environment is characterized by a high degree of instability and unpredictability, through the manifestation of new risks and threats, especially those with asymmetrical nature, by redefining the relations between the great powers, and increasing freedom of action of the regional actors (state and non-state. At the international level, the end of the Cold War has led to a fragmentation of efforts in the security field, with direct implications on the need for further efforts of the international community coordination. In this era of profound change and transformation it is not possible the adoption of an isolationist policy of security, but only in a broader context of interdependencies and relationships between general trends, threats or challenges specific to a particular area or geographic areas. Swift operationalization of the anti-missile system will strengthen the national security both directly, through the protection it provides for the entire national territory, and indirectly, as the system will have a deterrent important role, able to mitigate risks of possible attacks by ballistic missiles. The role of deterrence will remove the risk of attack against any Allied territory on which, by virtue of membership in NATO and obligations involved according to article 5 of the Washington Treaty, Romania has also responsibilities.

  20. Conventional Prompt Global Strike and Long-Range Ballistic Missiles: Background and Issues

    Science.gov (United States)

    2014-08-26

    use a hypersonic glider to deliver a conventional payload, but could be deployed on a booster with a shorter range than HTV-2 and, therefore, may need...73 Elaine M. Grossman, “Pentagon Nears Finding on Hypersonic Glider Test Failure,” Global Security Newswire, August 19, 2010. 74 Elaine M. Grossman...Pentagon Nears Finding on Hypersonic Glider Test Failure,” Global Security Newswire, August 19, 2010. 75 Defense Advanced Research Projects

  1. Evaluation of the Transfer of International Traffic in Arms Regulations-Controlled Missile Defense Technology to the National Aeronautics and Space Administration (NASA)

    Science.gov (United States)

    2015-07-13

    approval from the U.S. Department of State, is prohibited.” 4 Category IV (i) is launch vehicles, guided missiles, ballistic missiles, rockets...computer forensic evidence, we were not able to prove or disprove his contention that he did not share the technical data with anybody. Also, as...a retransfer occurred. Our evaluation was limited based on NASA’s inability to provide historical email records and the lack of computer forensic

  2. The DTIC Review; Volume 3 Number 4. Antimissile Defense: Strategic Interceptor

    Science.gov (United States)

    1997-12-01

    PERSONAL AUTHORS: HADYNSKI, MARK; URBANO , REYNALDO; SVOREC, GREGORY J. RAY ABSTRACT: (U) (U) The task of developing ABSTRACT: (U) The Ballistic Missile...primarily of refurbished components a formidable response - state of the art Theater acquired for the system’s demonstration and Missile Defense (TMD

  3. The Impact of Czech Domestic Politics on Missile Defense Agreements Between the United States and the Czech Republic

    Science.gov (United States)

    2009-04-01

    EU membership, although the outspoken leader of the OSD, Vaclav Klaus was loudly critical of many aspects of the EU.23 The Czech leadership after...the parliamentarians required three elections43 and three rounds of balloting before the compromise appointment of ODS founder Vaclav Klaus as...defense6 and in June 2000 suggested to Czech President Vaclav Havel that the Czech Republic offer to host a US missile defense radar.7 Most

  4. A New Algorithm with Variable-Structure Multiple Model for Tracking Ballistic Missile at Entire Flight Stages%跟踪弹道导弹全阶段的可变多模型方法

    Institute of Scientific and Technical Information of China (English)

    钮俊清; 单奇; 任清安; 刘军伟

    2011-01-01

    弹道导弹跟踪是弹道导弹防御系统中最核心的问题,然而传统的基于单运动模型的跟踪方法不能适用于跟踪弹道导弹的所有阶段。提出一种新的可变多模型(VUF)的跟踪方法,该方法具有以下的优势:采用多模型的结构,适用于跟踪任意阶段的弹道导弹;可变模型集的特征有效地提高了精度,同时降低了计算复杂度;采用UKF滤波方法具有更好的跟踪精度。仿真实验中设计了三个实验场景,与传统的EKF算法相比该方法明显地提高了跟踪的精度。特别是在弹道目标飞行阶段转换时,具有一定的识别能力和更鲁棒的跟踪性能。%In missile defense system, tracking ballistic target is the most key problem. However, the traditional method based on single-state model is not suitable for tracking ballistic target at all flight stages. The paper addresses a new tracking algorithm with variable-structure multiple model. It has several advantages. It is capable of tracking ballistic target at entire flight stages due to multiple model. Based on variable-structure, it improves tracking precision effectively and makes computational complexity lower. It has better tracking precision by using unscented Kalman filtering. Three simulation scenarios had been designed. Compared to the traditional EKF algorithm it has better estimation performance. Especially, it has some identification ability and more robust tracking performance during the switch phase of ballistic target.

  5. A new method of passive counting of nuclear missile warheads -a white paper for the Defense Threat Reduction Agency

    Energy Technology Data Exchange (ETDEWEB)

    Morris, Christopher [Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Durham, J. Matthew [Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Guardincerri, Elena [Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Bacon, Jeffrey Darnell [Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Wang, Zhehui [Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Fellows, Shelby [Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Poulson, Daniel Cris [Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Plaud-Ramos, Kenie Omar [Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Daughton, Tess Marie [Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Johnson, Olivia Ruth [Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

    2015-07-31

    Cosmic ray muon imaging has been studied for the past several years as a possible technique for nuclear warhead inspection and verification as part of the New Strategic Arms Reduction Treaty between the United States and the Russian Federation. The Los Alamos team has studied two different muon imaging methods for this application, using detectors on two sides and one side of the object of interest. In this report we present results obtained on single sided imaging of configurations aimed at demonstrating the potential of this technique for counting nuclear warheads in place with detectors above the closed hatch of a ballistic missile submarine.

  6. Ballistic & Cruise Missile Threat

    Science.gov (United States)

    2013-01-01

    parade in 2009 and is currently deployed with the Second Artillery Corps. lacm Torgos MUPSOW SS-N-21 AS-4 AS-15 APACHE Popeye Turbo Storm Shadow...less than 300 2013+ ISRAEL Popeye Turbo Air Conventional 300+ 2002 PAKISTAN RA’AD Air Conventional or nuclear 350 Undetermined Babur Ground

  7. Determining the Probability of Violating Upper-Level Wind Constraints for the Launch of Minuteman Ill Ballistic Missiles At Vandenberg Air Force Base

    Science.gov (United States)

    Shafer, Jaclyn A.; Brock, Tyler M.

    2013-01-01

    The 30th Operational Support Squadron Weather Flight (30 OSSWF) provides comprehensive weather services to the space program at Vandenberg Air Force Base (VAFB) in California. One of their responsibilities is to monitor upper-level winds to ensure safe launch operations of the Minuteman Ill ballistic missile. The 30 OSSWF requested the Applied Meteorology Unit (AMU) analyze VAFB sounding data to determine the probability of violating (PoV) upper-level thresholds for wind speed and shear constraints specific to this launch vehicle, and to develop a graphical user interface (GUI) that will calculate the PoV of each constraint on the day of launch. The AMU suggested also including forecast sounding data from the Rapid Refresh (RAP) model. This would provide further insight for the launch weather officers (LWOs) when determining if a wind constraint violation will occur over the next few hours, and help to improve the overall upper winds forecast on launch day.

  8. The United States’ European Phased Adaptive Approach Missile Defense System: Defending Against Iranian Missile Threats Without Diluting the Russian Deterrent

    Science.gov (United States)

    2015-01-01

    responsible move by the U.S. president.”16 Then–Russian Prime Minister Vladimir Putin , echoing this sentiment, said, “The latest decision by the Obama...the system was deployed. Then, arguing against the deployment of the system, Russian President Vladamir Putin said, “If a part of the strategic...Russia’s Putin Praises Obama’s Missile Defense Decision,” Los Angeles Times, September 19, 2009. 18 Clifford J. Levy and Peter Baker, “Russia’s Reaction

  9. Innovative Science and Technology, Ballistic Missile Defense Organization, Technical Program Information.

    Science.gov (United States)

    2007-11-02

    will be encouraged to follow-up with additional documentation - for example, a white paper or formal proposal. In addition to basic program efforts...related devices for opto-electronics, double heterostructures composed of AlGaN, GaN, and InGaN based layers for laser diode applications, as well...emitting diode ( LED ) structures. Opportunities Unique chemical approaches for ultra-fast EO external modulators; opto-electronic, ultra-high-speed signal

  10. A Methodology for Assessing and Ranking Ballistic Missile Defense Technologies Using a System Performance Index

    Science.gov (United States)

    2007-11-02

    suggestions, and guidance concerning the technology assessment process. References 1. Using ACEIT for Total Ownership Cost Modeling and Analysis...2001 World Population Data Sheet, Population Reference Bureau, Washington, DC List of Acronyms ACEIT – Automated Cost Estimating Integrated

  11. Navy Aegis Ballistic Missile Defense (BMD) Program: Background and Issues for Congress

    Science.gov (United States)

    2013-10-17

    system for adjusting its course. In contrast to the Block IA and 1B versions, which have a 21-inch-diameter booster stage at the bottom but are...the service is considering flying fewer tests to save money. “They’re looking at ways to consolidate life-fire tests to save some bucks ,” says Jim...entire booster stack. The SM-3 Block IB offers more capability against a greater threat set because of improvements in the kinetic warhead (KW). These

  12. Electronic Attack and Sensor Fusion Techniques for Boost-phase Defense Against Multiple Ballistic Threat Missiles

    Science.gov (United States)

    2005-06-01

    ferrite, iron, and cobalt -nickel alloys, are used to alter the permeability of the materials. High dielectric materials, such as carbon, graphite...chaff cloud can be found from [19] c kW f σ = (2.2.7) where 217000 m -GHz/lbk = for aluminized glass chaff, which has a density of 2550 3kg m

  13. A Systems Approach to Finding Cost-Effective Alternatives to European Ballistic Missile Defense

    Science.gov (United States)

    2013-09-01

    questions as guidance to further research and the cohort’s interpretation of the problem. Once detailed stakeholder information was compiled, the cohort...anticipated needs of stakeholders and identifying the most prominent threat focuses the research efforts. To identify any functional gaps the analysis...Ships, Aegis Ashore, PAC-3, STK, BMD, AN/TPY-2, THAAD, LCC, Boost, Midcourse , Terminal, Shahab, Sejil, Turkey 15. NUMBER OF PAGES 191 16. PRICE

  14. Science and Technology Issues of Early Intercept Ballistic Missile Defense Feasibility

    Science.gov (United States)

    2011-09-01

    regional BM D system, the task Io ree ..:oncluded that the Earl y Intercept concept is not a pa11icularly usefitl organizing principal. llul more...BILL DELANEY MR. STEVE POST MR. NEIL DOAR MR. RICHARD RITTER COL LAURENCE DOBROT DR. BRAD ROBERTS MR. ERIC FORREST MR. KEVIN ROBINSON MS

  15. BMD Agents: An Agent-Based Framework to Model Ballistic Missile Defense Strategies

    Science.gov (United States)

    2005-06-01

    process of launching, canceling and holding fire as three decimal values in the interval [0,1] referred to as Dl , Dc and Dh. Capability: Capability is...Eiter, F. Ozcan, and R. Ross. Heterogeneous Agent Systems. MIT Press, June 2000. [13] D. B. Weller, D. C. Boger , and J. B. Michael. Command structure

  16. The Impact on Strategic Stability of Ballistic Missile Defense in Eastern Europe

    Science.gov (United States)

    2009-06-12

    Ministry of Foreign Affairs [High Representative for the Common Foreign and Security Policy], after a glass of wine , that what I mentioned at the... taste it in their arguments, we should be afraid of ourselves, but if we have the Americans here, our democracy will be stronger. And my point is

  17. An Anthology: Rationale for a U.S. Ballistic Missile Defense (1969-1984).

    Science.gov (United States)

    1985-04-01

    sytem si~rltzillc a I’ilst i ll aill ht dtrii e of thile di litiof heID Ssoe- hc the r greter coneen otvimb4o Iouil -ill feititer of USo Wtrit󈧭 ll...in. niiss h’ on iw I mtc St redee more reoan to -o Id Iiv to stfl the ir Io t)o’~ I ’sII iI’ (’ o l it ., r St5 w i ’ 111(1 do te wI I-lse erail...Robert C. "High Frontier: The Only Game In Town." Journal of Social , Political, and Economic Studies! (Spring-Summer 1982), p. 55 19. Robinson

  18. 15 CFR 744.3 - Restrictions on Certain Rocket Systems (including ballistic missile systems and space launch...

    Science.gov (United States)

    2010-01-01

    ... Vehicles (including cruise missile systems, target drones and reconnaissance drones) End-Uses. 744.3 Section 744.3 Commerce and Foreign Trade Regulations Relating to Commerce and Foreign Trade (Continued) BUREAU OF INDUSTRY AND SECURITY, DEPARTMENT OF COMMERCE EXPORT ADMINISTRATION REGULATIONS CONTROL...

  19. Advanced Missile Signature Center

    Data.gov (United States)

    Federal Laboratory Consortium — The Advanced Missile Signature Center (AMSC) is a national facility supporting the Missile Defense Agency (MDA) and other DoD programs and customers with analysis,...

  20. Peeling the onion: an heuristic overview of hit-to-kill missile defense in the 21st century

    Science.gov (United States)

    LaCroix, Len; Kurzius, Shelby

    2005-03-01

    Researchers engaged in the development of infrared detector technologies may well benefit from a broader understanding of their products from the perspective of the end-user. An appreciation of how this technology is to be used by system designers, many of whom possess only a rudimentary understanding of quantum physics, is highly germane. Answers to questions like: "What device technology will be employed," "How will the device be used?" and "What are the impacts on signal-to-noise?" are of critical importance. In this paper, some of the fundamentals of hit-to-kill missile defense technology are examined in a largely non-mathematical context. From its "Star Wars" inception during the Reagan administration, to today"s Missile Defense Agency, the core requirement of missile defense has not changed - find the threat and destroy it before it reaches its destination. This fundamental requirement, while conceptually straightforward, is extraordinarily difficult to satisfy, and is almost exclusively dependent on our ability to detect and designate a relatively small, very fast-moving, room-temperature object, at great distances, and usually in a severe environment of shock and vibration further clouded by error and uncertainty. With an obvious bias toward passive IR detection and associated focal plane array characteristics, the flight of a fictitious interceptor is followed from launch to impact. At various points along the interceptor"s trajectory, a "peel the onion" approach is utilized to expose increasingly detailed layers of behavior, including the eventual release of the kinetic kill vehicle, and its autonomous flight to a body-to-body impact with its target. Various sources of error and their impact on the success of the mission are examined, and an overall understanding of the key features of the infrared seeker and its critical role in missile defense are ultimately developed.

  1. A Low-Visibility Force Multiplier: Assessing China’s Cruise Missile Ambitions

    Science.gov (United States)

    2014-04-01

    and ballistic missile force will be far less effective than its numbers would indicate. 18 Forensic data may not have been collected and analyzed for...and ballistic missiles; some has focused on Chinese efforts to develop an antiship ballistic missile that might tar- get U.S. aircraft carriers. One...electronically scanned array AIP air-independent propulsion ARM antiradiation missile ASAT antisatellite ASBM antiship ballistic missile ASCM antiship

  2. 弹道导弹SINS/CNS 组合导航系统建模与性能仿真%System Modeling and Performance Simulation on SINS/CNS Integrated Navigation System for Ballistic Missile

    Institute of Scientific and Technical Information of China (English)

    王鑫; 王新龙

    2015-01-01

    Combined with the characteristics of ballistic missile and the model error caused by uncer-tain noise characteristics in engineering practice, this paper proposes a SINS/CNS integrated navigation system suitable for ballistic missiles.This system, integrated some characteristics of simple combination models and overall optimal correction combination models, uses the adaptive Kalman filtering to ensure the stability and robustness of the filter.In the simulation, according to the missile trajectory, it establi-shes a reasonable, complete guide star catalog of missile.The simulation illustrates that this navigation scheme can improve the precision of navigation parameters of ballistic missile.%针对弹道导弹在工程实际中噪声特性的不确定性及其引起的模型误差,本文提出了一种适用于弹道导弹的 SINS/CNS 组合导航方案。该方案融合了简单组合模式和基于全面最优校正的组合模式特点,采用自适应卡尔曼滤波来保证滤波的稳定性和鲁棒性,并根据导弹的飞行弹道,建立了合理、完备的弹载导航星表。仿真验证结果表明,该导航方案可以达到全面提高弹道导弹导航参数精度的目的。

  3. 一种基于双预警卫星的弹道导弹轨迹重建算法%Algorithm of reconstruction for ballistic missile trajectory based on double early warning satellites

    Institute of Scientific and Technical Information of China (English)

    王树文; 姜海林; 胡沛

    2015-01-01

    In view of the complexity of the reconstruction algorithm for early warning satellite to ballistic missile, and the trade-off between high precision and real-time being hard, we propose a reconstruction algorithm of ballistic missile flight path based on observation of the geo-stationary earth orbit (GEO) double early warning satellites, by employing the conditions of epipolar constraint and time constraint in stereo vision matching, and perform a simulation experiment. Simulation results illustrate that the reconstruction trajectory of the ballistic missile’s powered phase comes close to the real one, the distance error between the reconstruction point and the real one is less than 2 km under the circumstance of camera detection error being small, which can meet the demand of the following estimation of ballistic missile launching point and forecast of drop point.%针对预警卫星对弹道导弹轨迹重建算法复杂、高精度与实时性难以兼顾的问题,利用立体视觉匹配中的目标点外极线约束及时间约束条件,提出了一种基于地球静止轨道(GEO)双预警卫星观测的弹道导弹飞行轨迹重建算法,并进行了仿真实验。实验结果表明,该算法对弹道导弹主动段重建轨迹与真实轨迹接近,在相机检测误差较小情况下重建点距离真实点误差小于2 km,可满足后续对弹道导弹进行发射点估计及落点预报需求。

  4. 天波超视距雷达探测弹道导弹性能研究磁%Study of Detection Performance of Skywave OTHR on Ballistic Missile

    Institute of Scientific and Technical Information of China (English)

    刘诗华; 李德芳; 申正义

    2015-01-01

    研究了天波雷达探测对弹道导弹的探测性能。研究从天波雷达探测火箭的机理和方式入手,分析了基于箭体、尾焰和人工电离层洞等三种探测方式。从雷达截面积(RCS )的角度对天波雷达探测弹道导弹和隐身飞机的性能进行了比较。最后,基于天波雷达探测火箭的方式,研究了天波雷达探测潜射弹道导弹的探测性能。%The detection performance of skywave OTHR on ballistic missile is studied .The study is based on the detec‐tion mechanism and methods of skywave OTHR on rocket .The three detection methods ,which based on rocket body ,plume and artificial ionosphere hole ,are analyzed .As viewed from the RCS ,the detection performance of skywave OTHR on bal‐listic missile is compared to the performance of skywave OTHR on stealth aircraft .Finally ,based on the methods of skywave OTHR on rocket ,the detection performance of skywave OTHR on ballistic missile is researched .

  5. Toward Armageddon: The proliferation of unconventional weapons and ballistic missiles in the Middle East. Occasional Paper No. 36

    Energy Technology Data Exchange (ETDEWEB)

    Miller, A.J.

    1989-12-01

    The author concludes that it is probable that unconventional weapons and their associated delivery systems will form a permanent part of future political and strategic calculations in the Middle East. Some possible consequences of this situation can be divided into three classes: intra-regional, inter-regional and extra-regional. There is no doubt that Israel, driven by the need for security,precipitated the proliferation of unconventional weapons and of surface-to-surface missiles in the Middle East. It will now be driven to secure itself from the new threat to its security posed by its regional opponents. The most significant extra-regional consequence of developments in the Middle East may be further complication of great power arms control negotiations. To the re-discovery by the United States and the Soviet Union of their obligations under the Non-Proliferation Treaty to reduce the level of their nuclear weapons must now be added the desire to reduce, if not entirely eliminate, their chemical weapons stockpiles in advance of a global ban. It is possible that lesser powers will learn from the evidence of the great powers behavior, although that contradicts much of what we know of the psychology of decision making in international politics. What is necessary, though not necessarily sufficient, is that the U.S. and the USSR as the two external powers with potentially the greatest leverage, work together toward the resolution of the underlying causes of conflict in a region marked by more than a generation of competition between them.

  6. Air and Missile Defense Intelligence Preparation of the Battlefield (AMD IPB)

    Science.gov (United States)

    2016-03-31

    For instance, an Electromagnetic Spectrum (EM) template (when required) might show graphically all the radiating sensors, the direction of radiation ...4-15 Anti- Radiation Missile (ARM) Template ............................................................ 4-16 Asymmetric...acquire TBMs and Advanced Air Breathing Threats (ABTs) (i.e. Fixed-Wing (FW) aircraft, Rotary-Wing (RW) aircraft, Unmanned aircraft systems (UAS

  7. Deterrence by Denial: The Efficacy of U.S. Missile Defense in the Persian Gulf as a Deterrent Against the Iranian Regional Missile Threat

    Science.gov (United States)

    2011-06-10

    Industries Organization, Shahid Hemmat Industrial Group (SHIG) and SANAM Industrial Group for missile technology proliferation activities. July 2000: Iran...sanctions on Sanam Industrial Group and Ya Mahdi Industries Group, pursuant to Executive Order 13382, for their ties to missile proliferation; both are

  8. Theater Missile Defense Extended Test Range Supplemental Environmental Impact Statement - Eglin Gulf Test Range. Volume 1

    Science.gov (United States)

    1998-07-01

    DOD Department of Defense DRMO Defense Reutilization Marketing Office EA Environmental Assessment ECAC Electronic Compatibility Analysis Center...natural attractions (kayaking, birdwatching , hiking, participating in cultural events); responsible travel to natural areas which conserves the

  9. A Strategic Conversation about National Missile Defense (Strategic Studies Quarterly, Winter 2008)

    Science.gov (United States)

    2008-01-01

    they were “producing missiles like sausages .” These quotes, and the overall tone of Reagan’s speech, indicate the specific historical context in which...policy, for reasons both altruistic and self- preserving . The Cold War provided far too many opportunities for the fallibility of man to give way to...successfully secure our interests and those of our allies with smart, informed decisions about the nature of future threats. With open dialogue and

  10. Determining the Probability of Violating Upper-Level Wind Constraints for the Launch of Minuteman III Ballistic Missiles at Vandenberg Air Force Base

    Science.gov (United States)

    Shafer, Jaclyn A.; Brock, Tyler M.

    2012-01-01

    The 30th Operational Support Squadron Weather Flight (30 OSSWF) provides comprehensive weather services to the space program at Vandenberg Air Force Base (VAFB) in California. One of their responsibilities is to monitor upper-level winds to ensure safe launch operations of the Minuteman Ill ballistic missile. The 30 OSSWF tasked the Applied Meteorology Unit (AMU) to analyze VAFB sounding data with the goal of determining the probability of violating (PoV) their upper-level thresholds for wind speed and shear constraints specific to this launch vehicle, and to develop a tool that will calculate the PoV of each constraint on the day of launch. In order to calculate the probability of exceeding each constraint, the AMU collected and analyzed historical data from VAFB. The historical sounding data were retrieved from the National Oceanic and Atmospheric Administration Earth System Research Laboratory archive for the years 1994-2011 and then stratified into four sub-seasons: January-March, April-June, July-September, and October-December. The AMU determined the theoretical distributions that best fit the maximum wind speed and maximum wind shear datasets and applied this information when calculating the averages and standard deviations needed for the historical and real-time PoV calculations. In addition, the AMU included forecast sounding data from the Rapid Refresh model. This information provides further insight for the launch weather officers (LWOs) when determining if a wind constraint violation will occur over the next few hours on the day of launch. The AMU developed an interactive graphical user interface (GUI) in Microsoft Excel using Visual Basic for Applications. The GUI displays the critical sounding data easily and quickly for LWOs on day of launch. This tool will replace the existing one used by the 30 OSSWF, assist the LWOs in determining the probability of exceeding specific wind threshold values, and help to improve the overall upper winds forecast for

  11. Interior Ballistic Modeling and Simulation of Underwater Launched Missile Using Concentric Canister Launcher%同心筒水下发射内弹道建模与仿真研究

    Institute of Scientific and Technical Information of China (English)

    袁绪龙; 王亚东; 刘维

    2013-01-01

    To construct a fast calculation method of interior ballistics of underwater launched missile using Concentric Canister Launcher(CCL),a simulation model of CCL was established according to the first law of thermodynamics,and power characteristics and underwater environment were considered.The empirical parameters in this model were decided using CFD solutions,and they were verified by more calculations.The influences of design parameters on the interior ballistics were studied by the verified model.The simulation shows that the sizes of canister top and bottom restricting parts can be used to adjust launching velocity of missile;the size of canister bottom restricting part can be adapted to modify the acceleration of missile.It can increase the adjusting range of velocity to increase initial volumes of inner and outer canister.The simulation method and results offer reference for engineers.%为构建一种快速的同心筒水下发射内弹道算法,采用热力学第一定律,结合导弹动力装置特性及水下环境需求,建立了同心筒水下发射内弹道计算模型,用CFD结果辨识并校验模型经验参数.应用校验的模型研究了发射装置设计参数对内弹道参数的影响规律.结果表明:筒口、筒底限流尺寸均可用于调速,筒底限流尺寸可用于调节过载,内、外筒初始容积增大可增大调速范围.仿真方法和结果可供工程设计人员参考.

  12. Missile defence : An overview

    NARCIS (Netherlands)

    Weimar, P.W.L.

    2012-01-01

    At the present day, an unparalleled number of international actors, be it national governments or non-state groups, have acquired or are seeking to acquire both weapons of mass destruction and the means to deliver them. Those means of delivery can be Ballistic Missiles that can bridge vast – even in

  13. Missile Defense: DOD’s Report Provides Limited Insight on Testing Options for the Ground-based Midcourse Defense System

    Science.gov (United States)

    2014-04-30

    Cochran Ranking Member Subcommittee on Defense Committee on Appropriations United States Senate The Honorable Howard P. " Buck " McKeon Chairman The...System Component Mission Location Ground Based Interceptor (GBI) The interceptor consists of a silo-based, three-stage booster stack and a “hit-to

  14. 舰载弹炮结合近程武器系统技术研究%Study on Shipped Missile-Gun Integrated Defense Weapon System

    Institute of Scientific and Technical Information of China (English)

    白奕

    2014-01-01

    现代高性能反舰导弹是舰艇末端防御的最大威胁,而舰载弹炮结合近程武器系统为舰艇的末端防御提供了一种有效的途径。分析了舰载弹炮结合近程武器系统的作战使用和主要特点,针对海上空袭武器的特点,重点研究了增强系统抗饱和攻击能力的设计方法,并探讨了舰载弹炮结合近程武器系统在现代海战中的使用方向。%Modern high-powered antiship missile is the main threaten of ship,and shipped missile-gun integrated defense weapon system is an effective way to the terminal defense of ship. This paper first analyzes the combat operation and main characteristic of missile-gun integrated defense weapon system,then studies the key factor of designing a system. At last the system usage is discussed in the modern sea war.

  15. A New Approach to Ballistic Missile Defense for Countering Antiaccess/Area-Denial Threats from Precision-Guided Weapons

    Science.gov (United States)

    2013-04-01

    Congress, CRS Report for Congress (Washington, DC: Congressional Research Ser- vice, 18 March 2012), 3–5. 5. Mohammad-Ali Massoumnia, Q- Guidance in Rotating...NUMBER 5e. TASK NUMBER 5f. WORK UNIT NUMBER 7. PERFORMING ORGANIZATION NAME(S) AND ADDRESS(ES) Air Force Research Institute (AFRI),155 N. Twining...Furthermore, the MDA has dedicated nearly all of its re- cent development to the midcourse phase of flight, where the threat has the greatest freedom to

  16. System Requirements Analysis and Technological Support for the Ballistic Missile Defense System (BMDS) - FY07 Progress Report

    Science.gov (United States)

    2007-07-01

    formal requirement for a distributed-system protocol ( leader election ) operating with non- ideal communication links. The proof-of-concept prototype is as...in OMNeT++ Figure 5 shows the top-level statechart of a leader election (LE) module. The top-level statechart consists of four states, the...component under test using events, time, and data information specified in the component. The likelihood of success of the leader - election requirement

  17. Arms Control and Missile Defense: Explaining Success and Failure in U.S.-Russian Cooperation

    Science.gov (United States)

    2013-09-01

    33 Amy F. Woolf , “The New START Treaty: Central Limits and Key Provisions,” Congressional Research Service...2013. http://en.wikipedia.org/wiki/Partial_Test_Ban_Treaty. Woolf , Amy F. The New START Treaty: Central Limits and Key Provisions CRS Report R41219...DISTRIBUTION LIST 1. Defense Technical Information Center Ft. Belvoir, Virginia 2. Dudley Knox Library Naval Postgraduate School Monterey, California

  18. Ballistic missile tracking performance in boost phase based on dual infrared early warning satellites%红外预警双星弹道导弹主动段跟踪性能

    Institute of Scientific and Technical Information of China (English)

    钟宇; 吴晓燕; 黄树彩; 吴建峰; 李成景; 唐意东

    2015-01-01

    为研究反导作战中红外预警卫星系统对弹道导弹主动段弹道的跟踪性能,提出以后验克拉美-罗下界(Posterior Cramer-Rao Lower Bound, PCRLB)为衡量指标,结合8态重力转弯主动段运动模型和双星纯方位无源定位获取的量测量,系统分析了运动建模精度、量测精度、采样周期、测源不确定性下检测概率和虚警数目等因素对跟踪时效性和准确性的影响.仿真算例给出了上述因素对位置和速度跟踪性能的影响程度和规律,可为预警卫星反导作战、战技指标关联建模以及星载探测器优化设计等提供有意义的参考.%To study the ballistic missile tracking performance in boost phase based on infrared early warning satellites system, Posterior Cramer-Rao Lower Bound (PCRLB) was proposed as a measurement index. After modeling ballistic target motion by 8-state gravity turn model and locating target position by dual satellites' bearing-only passive localization, PCRLB was used to evaluate the effects of factors, including target motion model accuracy, measurement accuracy, sampling period, detection probability and false alarm number conditioned by measurement origin uncertainty, on tracking timeliness and accuracy. One simulation example showed the extent and rules of said factors on position and tracking performance of velocity. It can contribute to the anti-ballistic missile operation by early warning satellite, the relationship modeling between tactical and technical indices and the optimal design of satellite-based infrared detector.

  19. 基于Multi-Agent的防空导弹武器系统模型设计%Design of Multi-Agent Based Model on Air Defense Missile Weapon System

    Institute of Scientific and Technical Information of China (English)

    陈宝印; 栾立秋; 张成斌

    2011-01-01

    建立科学的结构模型是进行防空导弹武器系统仿真的基础和关键环节.针对防空导弹武器系统的特点,提出了基于Multi-Agent的防空导弹武器系统模型建模方法,设计了防空导弹武器系统模型结构.利用Multi-Agent建模技术,把防空导弹武器系统实体映射成相应的Multi-Agent系统,并以Agent的形式对防空导弹武器系统这一客观复杂系统进行了深刻的认识,为防空导弹武器系统建模仿真奠定了基础.%Forming a scientific system model is the key of Air Defense Missile Weapon System simulation. According to the characters of Air Defense Missile Weapon System, a modeling method of multi-agent based model on Air Defense Missile Weapon System is given. The framework on Air Defense Missile Weapon System is designed. Using the Multi-Agent modeling technology, maps the Air Defense Missile Weapon System entity the corresponding Multi-Agent system, and carries on the profound understanding by the Agent form to Air Defense Missile Weapon System this objective complicated, which will be helpful to realize the modeling simulation on Air Defense Missile Weapon System.

  20. The Trend of Missile-Gun Combined Weapon System for Aerial Defense%弹炮结合防空武器系统新趋势

    Institute of Scientific and Technical Information of China (English)

    陈薇; 王军

    2016-01-01

    Since the Kosovo War started to use a form of simple air raids and counter-air raids,a increasing number of wars use air raids to attack the enemy,so how to defense the enemy in the air become more and more important. Missile-Gun combined weapon system not only has a big air defense area but also has a high effective-cost,so it will become the trend of air defense weapon system. This paper describes the structure and classification of Missile-Gun combined weapon system,and analyzes the advantages and disadvantages of the current systems; finally the trend of Missile-Gun combined weapon system is proposed.%自从科索沃战争开创了单纯空袭作战与反空袭作战的先例之后,空袭就成为了战争的焦点,如何更好地抵御空中目标的来袭成为各国战争防御的主题。弹炮结合防空武器系统具有防空区域大、效费比高等优点,是防空武器系统的发展趋势之一。在分析现有典型弹炮结合防空武器系统的基础上,依据弹炮结合武器系统是否共用火控系统将其分为弹炮混编式和弹炮同控式两种形式;随后,结合现代空袭的特点提出了弹炮结合武器系统的发展趋势。

  1. 红外预警卫星弹道导弹主动段探测能力%Detection ability of infrared early warning satellite for ballistic missile in boost phase

    Institute of Scientific and Technical Information of China (English)

    钟宇; 吴晓燕; 黄树彩; 吴建峰; 李成景

    2015-01-01

    为研究反导作战背景下红外预警卫星对弹道导弹主动段弹道的探测能力,在作战需求驱动下,构建了预警卫星探测能力战术、技术和性能指标的关联结构,以技术指标为桥梁,通过建立视场、扫描周期、检测概率、虚警概率、信噪比及最大作用距离等计算模型,系统分析了战术、技术和性能指标之间的关联及其对探测能力的影响.结合典型的目标和背景辐射特性以及大气透过率,仿真分析了星载探测器性能指标的不同组合对预警卫星最大作用距离和预警时间的影响程度和规律.该研究可为评估预警卫星反导作战效能和优化设计星载红外探测系统提供有意义的参考.%To study the detection ability of infrared early warning satellite for ballistic missile in boost phase in the background of anti-missile operation, driven by the operational requirements, the tactical, technical and performance indices association structure of detection ability was built. The tactical and performance indices were interconnected by the technical indices, and furthermore, some key technical indices models were built including Field of View (FOV), revisit time, detection probability, false alarm rate, Signal to Noise Ratio (SNR) and maximum operating range. The tactical, technical and performance indices association and its effect on detection ability were analyzed. Based on the typical radiation characteristics of target and background and the atmospheric transmittance, simulation examples showed the impacts and rules of different performance indices combination on maximum operating range and early warning time. The work can provide reference for evaluating anti-missile operation effectiveness and designing optimum satellite-borne infrared detection system.

  2. Missile Electro-Optical Countermeasures Simulation Laboratory

    Data.gov (United States)

    Federal Laboratory Consortium — This laboratory comprises several hardware-in-the-loop missile flight simulations designed specifically to evaluate the effectiveness of electro-optical air defense...

  3. 导弹攻防对抗仿真中偶极子云建模和仿真%Modeling and Simulation of Chaff Cloud in Missile Attack-Defense Confrontation

    Institute of Scientific and Technical Information of China (English)

    颜如祥; 宦国杨; 方冰

    2012-01-01

    Principles of chaff clouds thrown by missiles are analyzed in the simulation of missile attack-defense confrontation. The flight path model of chaff clouds is built and effects of chaff clouds are researched. The modeling and simulation technologies give a guidance for building simulation system of the missile attack-defense confrontation.%从导弹攻防对抗仿真角度分析了弹道导弹抛撒偶极子云的工作原理,继而建立了偶极子云飞行轨迹模型。同时研究了偶极子云的作用效果。该建模和仿真技术对建立导弹攻防对抗仿真系统具有指导意义。

  4. Joint Air-to-Ground Missile (JAGM)

    Science.gov (United States)

    2015-12-01

    Navy. The JAGM mission is to develop the next generation of aviation launched fire and forget missiles to replace the HELLFIRE laser and Longbow...EMD contract to develop the next generation of aviation launched missiles to replace the HELLFIRE laser and Longbow radar missiles . JAGM December 2015...Selected Acquisition Report (SAR) RCS: DD-A&T(Q&A)823-355 Joint Air-to-Ground Missile (JAGM) As of FY 2017 President’s Budget Defense Acquisition

  5. 机动发射的弹道导弹飞行诸元的快速计算%A rapid method for flight program design of the ballistic missile launched on mobile platform

    Institute of Scientific and Technical Information of China (English)

    韦文书; 荆武兴; 高长生

    2012-01-01

    基于解析预报与数值寻优相结合的方法,本文研究机动发射的弹道导弹飞行诸元快速设计问题.首先,利用线性回归方法建立了导弹诸参数与发射信息之间的多项式拟合关系式,利用该式可以得到飞行方案诸参数迭代初值;然后,以弹道落点纵向偏差、横向偏差及弹道顶点高度偏差平方和极小为指标函数,采用Levenberg—Marquardt方法搜索诸参数精确解;最后,以民兵Ⅲ弹道导弹为例,对所提方法进行了仿真验证,研究结果表明,该方法计算量少,适合已定参数的导弹大范围机动发射的快速计算,且在落点精度要求不高的情况下,可以用解析表达式的解作为弹道飞行方案诸元的值,对目标进行打击.’%Combining analytical prediction and optimization of parameters, a rapid method for basic firing data of flight program of the ballistic missile launched on mobile platform is studied. First, the analytical expressions between the parameters about flight program and attack information are obtained by using polynomial function approximation, by which the initial value of the firing data can be calculated. Second, considering the parameters of flight program as variables and the least square of the placements aberration as the performance index, the Levenberg-Marquardt (L-M) Method is used to obtain the optimal values. Finally, as an example, the proposed method is provided to attacking targets with the LMG-30G. The simulation results show that, because of the less computational effort, the proposed method is suitable for the rapid design of the Big Wide Intratheater Mobility for the missile. When the precision of the placement is not highly demanded, the solution of analytical expressions can be used directly as the value of flight parameters to attack the target.

  6. Air-launching Missile Trajectory Numeric Simulation for Intercepting Boosting/Ascending Stage Ballistic Missile%助推/上升段空射反导弹道仿真∗

    Institute of Scientific and Technical Information of China (English)

    郭晓楠; 李记新

    2015-01-01

    For antimissile interception of the boosting/ascending tactical missile, guidance system model is built, and numeric simulation is carried out. First, 4 guidance laws, including proportion navigation guidance( PNG)、instantaneous miss-distance based forecasting opti-mal guidance law( OGL)、line of sight acceleration guidance( AAG) and target acceleration compensated proportion navigation( APN) , are selected and applied to mid-course guidance to study the performance. According to the guidance performance analysis, 2 schemes are presented, and another two schemes are presented via exorbitant gravitation compensation ( EGC) . Finally,‘OGL+APN( EGC) ’ is dem-onstrated to be the best one, which behaves better in attack zone, launching restrictions and guidance performance.%针对空射导弹拦截助推/上升段战术弹道导弹制导问题进行制导系统建模和数字仿真。选取4种基本制导律进行中、末制导研究,包括:比例制导律( PNG)、基于瞬时脱靶量的一种最优制导律( OGL)、视线角加速度制导律(AAG)、目标加速度补偿比例制导律(APN)。据此提出2种中、末制导组合方案,通过重力过补偿优化中制导得到另2种方案。4种方案仿真对比得到“OGL+APN (重力过补偿)”方案。该方案攻击区较大,发射条件约束较宽松,具有较好的制导性能。

  7. 印度导弹武器装备体系发展与前景分析%Analysis of Indian Missile Weapon System Development

    Institute of Scientific and Technical Information of China (English)

    张莹

    2012-01-01

    随着国际安全环境的重大变化,印度加紧了其军事战略的调整和军队建设的步伐,大力发展导弹武器体系建设,对周边国家和地区形成了安全威胁.在分析印度军事战略的基础上,重点阐述印度弹道导弹、巡航导弹、防空导弹和导弹防御系统等武器装备体系的建设情况,并分析了其发展趋势和未来前景.%With the tremendous changes of the international security environment, India promotes the military strategy adjustment and the military construction, and pays great attention to the development of missile weapon system, threatening to the security of neighboring countries and regions. Beginning with the Indian military strategy, this paper describes the Indian weapon system construction in depth, such as the ballistic missile, cruise missile, air defense system and ballistic missile defense system .ete. Finally future development trend and prospect are analyzed.

  8. Embedded Systems - Missile Detection/Interception

    Directory of Open Access Journals (Sweden)

    Luis Cintron

    2010-01-01

    Full Text Available Missile defense systems are often related to major military resources aimed at shielding a specific region from incoming attacks. They are intended to detect, track, intercept, and destruct incoming enemy missiles. These systems vary in cost, efficiency, dependability, and technology. In present times, the possession of these types of systems is associated with large capacity military countries. Demonstrated here are the mathematical techniques behind missile systems which calculate trajectories of incoming missiles and potential intercept positions after initial missile detection. This procedure involved the use of vector-valued functions, systems of equations, and knowledge of projectile motion concepts.

  9. Guidance Law Based on Differential Geometry for Endo-atmosphere Tactical Ballistic Missile Interceptor%基于微分几何的拦截弹制导律研究∗

    Institute of Scientific and Technical Information of China (English)

    武唯强; 陈康; 符文星; 闫杰; 陈凯

    2015-01-01

    针对战术导弹的拦截问题,根据质点微分几何运动学在弧长系下及在时域内的关系,将弧长系下的微分几何制导律应用到实际的TBM拦截过程中,得到了空间中时域内的微分几何制导律以及相应的过载指令。根据拦截过程中目标的不同机动方式,采用微分几何制导与比例导引进行了仿真对比与分析,得到了两种导引律下的脱靶量与拦截时间。仿真结果表明,微分几何制导律能够在拦截过程中降低视线角速度并使其趋于稳定,在拦截开始其过载需求较大并逐渐降低至接近0,脱靶量及拦截时间都小于比例导引律,采用微分几何制导律能够在更短时的时间内进行精确拦截。%In this paper, the endo⁃atmosphere tactical ballistic missile interceptor is studied, especially on the terminal guidance law. According to the relationship between arc system and time domain, differential geometry guidance law will be applied to the process of TBM interception. Differential geometric guidance law and the relative overload command in the time domain of 3D space is derived. When it is compared with the classic proportion navigation law in the simulation toward a high speed maneuvering target, the designed differential geometry guidance law demonstrates its superiority by an obviously lower miss distance and lower line of sight rate.

  10. First Soviet Sea-Launched Ballistic Rockets

    Directory of Open Access Journals (Sweden)

    Yuri F. Katorin

    2013-03-01

    Full Text Available In the article it is told about the creation of the first generation of Soviet ballistic missiles for the armament of submarines. The basic stages of their development, tests and adoption for the armament are described. Are cited the data about the people, is most which actively participated in these processes.

  11. 空空导弹固体发动机内弹道对导弹后体流场非定常影响的数值模拟%Numerical simulation on the unsteady effect of solid rocket motor internal ballistic on aft part flow field of air-to-air missile

    Institute of Scientific and Technical Information of China (English)

    陈伟; 梁国柱

    2014-01-01

    空空导弹高空工作过程中,外部的超声速来流与其固体火箭发动机的尾部喷流相互作用,形成复杂的非定常尾部干扰流场,影响导弹后体的工作环境。为了探寻发动机内弹道对导弹后体结构的非定常影响,采用双组分气体的非定常CFD仿真模型对某空空导弹发动机工作期间的喷管内流场和导弹外流场进行一体化数值模拟,研究了由多个自由剪切层、激波、膨胀波等组成复杂干扰流场的结构,以及在发动机内弹道和外流速度的非定场效应影响下其变化过程,在此基础上定量分析了由此引起的尾流的温度和燃气的扩散,以及在不同内弹道阶段发动机对导弹后体结构产生的影响。计算结果表明,非定常干扰流场在导弹后体附近产生不断变化的低速涡流区域,加速了温度和燃气的扩散,致使导弹尾端面区域受到高温气体冲刷,进而降低导弹后体结构的安全性。因此,空空导弹的后体设计有必要考虑并减少发动机内弹道与导弹外流的非定场影响对导弹后体安全性所造成的潜在威胁。%In the high⁃altitude working period of missile,the interaction between the supersonic external flow and the tail jet flow of solid rocket motor derives complex unsteady interactive flow at the tail of missile,which affects the working environment of aft missile.In order to explore the unsteady influence of the internal ballistics on the structure of aft missile,an unsteady CFD simulation model of double component gas was adopted to simulate numerically the integration flow field including the inner flow of nozzle and the outer flow of missile during the working period of motor. The structure of interactive flow field composed of multiple free shear layers,shock waves and expansion waves,as well as its changing process under the unsteady effect of internal ballistic and outer flow velocity,were studied.Based on it

  12. Technical development and application of primary battery for air defense missile%防空导弹弹上电池技术的发展及应用

    Institute of Scientific and Technical Information of China (English)

    蔡绍伟

    2012-01-01

    防空导弹普遍采用弹上电池作为弹上主电源,经历了铅酸电池、锌银电池到热电池三个发展阶段.介绍了锌银电池,钙-铬酸钙体系、锂及锂合金-二硫化铁体系热电池技术的发展、性能特点及国内外发展现状.论述了锌银储备电池及热电池的组成、工作原理和技术优势.指出了防空导弹弹上电池技术的发展方向.%The technical development,performance and developing status of Zn/AgO battery both in China and abroad,calcium/calcium chromate system,and lithium (lithium alloy)/iron disultide system thermal batteries were introduced.The structure,principle and technical advantages of Zn/AgO battery and thermal battery were discussed.Finally,some development directions of the primary battery for air defense missile were also forecasted.

  13. Toward a defense-dominated world

    Energy Technology Data Exchange (ETDEWEB)

    Wood, L.

    1993-08-01

    Maintaining the large-scale peace in a defense-dominated world necessarily will require not only passive but also active defenses against large-scale aggression that are technically feasible, practical and easy to employ -- and robust against perversion into support of aggression. Such peace maintenance tool-sets will feature means for effectively rebuking aggression as well as providing timely and very widely available seaming of aggression underway anywhere. This report discusses the technology base which currently exists to provide world-wide, high-quality imagery at moderate (5--10 meter) spatial resolution or imagery of 1% of the Earth`s land surface at high ({le} 1 meter) resolution no less frequently than daily, at a total cost of the order of $1 B, with operational capability in the later `90s. Such systems could provide timely warning of aggressive actions anywhere. Similarly, space-based means of defeating aggression conducted with even quite short-range ballistic missiles anywhere in the world could be brought into existence by the end of the `90s for a total cost of about $10 B, and small high-altitude, long flight-duration robotic aircraft carrying high-performance sensors and interceptor missilery could provide both seaming and active defenses against attacks conducted with very short range ballistic missiles, as well as attacks launched with air-breathing threats such as bombers and cruise missiles, for a cost per defended area of the order of $10/km{sup 2}. It appears that all of the associated sensors can find apt dual-use as high-performance systems for monitoring physical aspects of the human environment.

  14. Ballistic Missile Proliferation: An Emerging Threat 1992

    Science.gov (United States)

    1992-10-01

    Avibras has also been working sile is the Condor 2. since 1960 on the solid-propellant motors for the The Alacran is believed to be about 6.9 m long Sonda ...development to SLV Brazil Sonda II, Ill, IV; VLS SS-1000* - Future developments uncertain Indonesia RX-250 - Sounding rockets launched since 1976 Iraq...in the mid 1970s, resulting in the launch potential conflict. [Refs. 54, 58, 59, 60] of the Sonda IV sounding rocket in 1984. A few years later

  15. 对GMD系统拦截时机与空域的分析与研究%Study and Analyses of the Time and Airspace of Interception for National Missile Defense

    Institute of Scientific and Technical Information of China (English)

    鲜勇; 斯文辉

    2011-01-01

    The disposition of National Missile Defense and its future plan of development are studied in this paper. Its battle flow and time sequence of launch are analyzed. The time and airspace of interception are gained through theoretical analysis and simulation. This paper has done some theoretical groundwork that is helpful for the future technology of penetration of strategic missile.%通过对地基中段防御系统(GMD)部署现状以及未来发展计划的研究,分析了GMD系统的作战过程以及发射时序,经过理论分析和攻防仿真实验,计算得到GMD系统的拦截空域、拦截时机,为未来战略导弹的突防技术研究打下了一定的基础.

  16. Study on Maneuver Penetration Guidance Law of Ballistic Missile Based on Differential Games in the Terminal of Interception%基于微分对策的拦截末段突防导弹机动突防制导律研究

    Institute of Scientific and Technical Information of China (English)

    张士熊; 刘新学; 李斌; 孟少飞

    2015-01-01

    为提高弹道导弹在拦截末段机动突防性能,基于微分对策理论对三维空间中的机动突防制导律进行研究。从视线倾角和视线偏角的变化率模型出发建立拦截-突防双方的运动模型;推导了双方在拦截末段的最优制导律;在Simulink下搭建仿真平台,并选取不同参数组合进行多次仿真。仿真结果表明,本文提出的突防制导律可使脱靶量达到12m,突防效果明显。%For improving the penetration performance of ballistic missile in the terminal of the interception course, this paper analyzes the maneuver penetration guidance law of ballistic missile based on three-dimensional differential games theory. Based on the line of sight angle rate, a moving model about the interception-penetration is set up. And then an optimal guidance law in the terminal of interception is derived about the two parties. Finally, a simulation platform is set up, and simulation is repeated based on different parameter groups. The result of simulation shows that, the penetration guidance law raised in this paper can make a miss distance up to 12 meters with an obvious penetration effect.

  17. 防空导弹武控设备实现CBM方法的探讨%Research on the Condition Based Maintenance for Weapon Control Equipment of Air-defense Missile

    Institute of Scientific and Technical Information of China (English)

    曲宏宇; 向哲

    2012-01-01

    针对解决防空导弹武控设备目前维修方式中的诸多问题,基于状态的维修(CBM)方式是有效解决途径之一。分析了对防空导弹武控设备进行CBM时的状态监测、失效模型建立、故障预测和维修决策等关键技术问题,探讨了防空导弹武控设备实现CBM的技术对策。结果表明,CBM具有诸多优点,它的实践应用必将引发武控设备维修技术的根本变革,促进高新技术在防空导弹武控设备维修领域的应用。%The condition based maintenance(CBM) is one of effective maintenance methods for weapon control equipment of air-defense missile.The key techniques is analyzed about inspecting the condition,establishing invalidation modal,forecasting malfunction,maintenance decision-making of CBM that is used for weapon control equipment of air-defense missile,the technique countermeasure of carrying CBM is introduced.The results show CBM is effective,which will result in radical change in maintenance technique of weapon control equipment,and promote using of new techniques in maintenance for weapon control equipment of air-defense missile.

  18. The new politics of missile proliferation

    Energy Technology Data Exchange (ETDEWEB)

    Karp, A. [Old Dominion Univ., Norfolk, VA (United States)

    1996-10-01

    The author addresses the most consequential proliferation battle of the 1990s which occurred in Washington over the interpretation of the long-term threat to the United States from ballistic missiles. In the early 1970s, the stabilization of the US-Soviet strategic relationship led to new disputes over the other side`s future intentions, seen most graphically in Western debates over the implications of the Soviet SS-18 and SS-20 missile programs. Today, in much the same way, proliferation politics has matured to the point that surprises are few and the most challenging problem is anticipating the more distant future. Washington`s ballistic missile proliferation battle was sparked by National Intelligence Estimate (NIE) 95-19, entitled {open_quotes}Emerging Threats to North America During the Next 15 Years,{close_quotes} released by the National Intelligence Council in November 1995. This document updated the evidence of regional missile programs reviewed in a similar report issued in 1993, and recapitulated the previous finding that {open_quotes}No country, other than the major declared nuclear powers, will develop or otherwise acquire a ballistic missile in the next 15 years that could threatened the contiguous 48 states or Canada.{close_quotes} The new report confirmed what several other studies of missile proliferation had already established: that besides the five nuclear-weapon states (the United States, Russia, China, France and Britain), only India, Israel and Japan are in a position to develop an ICBM during the foreseeable future, and while all have relevant capabilities, none are undertaking the steps necessary to develop an actual ICBM.

  19. Patriot Advanced Capability-3 Missile Segment Enhancement (PAC-3 MSE)

    Science.gov (United States)

    2015-12-01

    sustainment reliability will exceed 20 hours MTBCMF. Will be demonstrated during Post Deployment Build -8 and Radar Digital Processor- Configuration...Technology and Logistics) PAC-3 MSE December 2015 SAR March 21, 2016 09:42:58 UNCLASSIFIED 4 COL John M. Eggert Lower Tier Project Office Building 5250...PAC-3 MSE) is a high velocity, hit-to-kill, surface -to-air missile capable of intercepting and destroying Tactical Ballistic Missiles (TBM) and air

  20. A Study of Age Demographics across the Aviation and Missile Materiel Enterprise

    Science.gov (United States)

    2016-03-31

    future Aviation and Missile ME may look like. The Defense Civilian Personnel Data System (DCPDS) Human Resource managers across the Aviation and...Missile ME use the Defense Civilian Personnel Data System (DCPDS) as the warehouse for storing employee information. Each of the five organizations...Aviation and Missile Life Cycle Management Command Public Affairs, 25 April 2016 AVIATION AND MISSILE MATERIEL ENTERPRISE DEMOGRAPHICS 2

  1. 防空导弹武器系统通用火控软件设计与实现%General Design and Accomplishment of Firepower Control Software in Air Defense Missile Weapon System

    Institute of Scientific and Technical Information of China (English)

    陈华

    2011-01-01

    针对不同防空导弹武器系统的火控软件之间不能互用的现状,分析了火控系统各主要功能模块之间的接口关系,提出了火控软件通用化设计的思路,并用C++实现了该设计.火控软件的通用化设计值碍将来防空导弹能武器系统火控软件的标准化设计和编程借鉴.%s :Contrasting the status of no interoperability in firepower control softwares among different aerial defense missile weapon system, the interface relation of functional module in firepower control system is analyzed.And the idea of general design of firepower control software is put forward.Furthermore, the idea is realized by using C++ programming.The general design of firepower control software is worth used for reference in the standard design and programming of future aerial defense missile weapon system.

  2. Missile Aerodynamics (Aerodynamique des Missiles)

    Science.gov (United States)

    1998-11-01

    guerre froide la production des missiles a baisse’, avec pour consequence une diminution des budgets de d6veloppement. Les nouveaux types de conflits ...Roma) Directeur - Gestion de l’information LUXEMBOURG (Recherche et developpement) - DRDGI 3 Voir Belgique Ministbre de la Difense nationale NORVEGE

  3. Detecting Simulation of Trajectory of Tactical Ballistic Missile Using Space-Based Early Warning Satellite%天基预警卫星弹道预报能力仿真分析

    Institute of Scientific and Technical Information of China (English)

    曾番; 李晓军; 李国宏; 冯卉

    2013-01-01

    Space-based early warning satellites can forecast the errors of ballistic position and velocity which is the important component of guidance information and directly influence search performance of long-range early warning radar and tracking and guiding radar.According to give information about the Line-of-Sight (LOS) angular errors of the satellites and their ballistic target empirical data,ballistic prediction error estimation modeland compute prediction error bands is designed.The simulations show that horizontal and vertical plane prediction error bands of viewing satellites can be obtained by analyzing observation errors covariance for ideal trajectory target.%天基预警卫星对导弹位置和速度的预测误差是引导信息中的重要组成部分,直接影响到远程预警雷达和跟踪制导雷达的搜索性能.根据天基预警卫星视线角误差和导弹目标经验数据,设计导弹预报误差估计模型,计算预报误差带半径.仿真结果表明:通过对理想弹道目标进行观测误差协方差分析,可以获得预警卫星观测的水平及垂直平面预测误差带.

  4. Impacts of Deflection Nose on Ballistic Trajectory Control Law

    Directory of Open Access Journals (Sweden)

    Bo Zhang

    2014-01-01

    Full Text Available The deflection of projectile nose is aimed at changing the motion of the projectile in flight with the theory of motion control and changing the exterior ballistics so as to change its range and increase its accuracy. The law of external ballistics with the deflectable nose is considered as the basis of the design of a flight control system and an important part in the process of projectile development. Based on the existing rigid external ballistic model, this paper establishes an external ballistic calculation model for deflectable nose projectile and further establishes the solving programs accordingly. Different angle of attack, velocity, coefficients of lift, resistance, and moment under the deflection can be obtained in this paper based on the previous experiments and emulation researches. In the end, the author pointed out the laws on the impaction of external ballistic trajectory by the deflection of nose of the missile.

  5. Apogee, Perigee, and Recovery: Chronology of Army Exploitation of Space

    Science.gov (United States)

    1989-01-01

    Huntsville, Alabama ........................... 43 14. The high-acceleration Sprint missile blasts out of its White Sands Missile Range launch cell ...Defense BMDATC Ballistic Missile Defense Advanced Technology Center - xxii - BMDC Ballistic Missile Defense Center BMDO Ballistic Missile Defense...9- - 44 - PlBe 14-The high-acceleration Sprint missile blasts out of its White Sands Missile Range launch cell during flight testing. 45 E cc. - 46

  6. Terminal ballistics

    CERN Document Server

    Rosenberg, Zvi

    2016-01-01

    This book comprehensively discusses essential aspects of terminal ballistics, combining experimental data, numerical simulations and analytical modeling. Employing a unique approach to numerical simulations as a measure of sensitivity for the major physical parameters, the new edition also includes the following features: new figures to better illustrate the problems discussed; improved explanations for the equation of state of a solid and for the cavity expansion process; new data concerning the Kolsky bar test; and a discussion of analytical modeling for the hole diameter in a thin metallic plate impacted by a shaped charge jet. The section on thick concrete targets penetrated by rigid projectiles has now been expanded to include the latest findings, and two new sections have been added: one on a novel approach to the perforation of thin concrete slabs, and one on testing the failure of thin metallic plates using a hydrodynamic ram.

  7. Research on Efficiency Evaluation Model That Air Defense Missile and Artillery Resist Multiple Targets in Coordination%舰空导弹与火炮武器协同抗击多目标的效能评估

    Institute of Scientific and Technical Information of China (English)

    由大德; 徐德民; 张发强

    2011-01-01

    In order to make the air defense and artillery weapon are used significantly, and improve the operational efficiency that resisting the multiple targets, on base analyzing the emitter region of the missile and artillery weapon, by means of studying the shooting times of multiple air defense weapon shooting tunnels and shooting mode and shooting times of the artillery weapon, it established the optimal model efficiency evaluation,at last it defined the optimal firepower distribution schemes by means of an example based on the model, it verified the use of the model.%为使水面舰艇防空导弹与火炮武器有效协同使用,提高抗击空袭多目标的作战效能,在分析防空导弹和近防炮武器发射区的基础上,通过研究防空导弹多个射击通道的射击次数、火炮武器的射击方式和射击次数等,建立了协同抗击多目标的效能评估模型,并运用该模型对确定最优火力分配方案的使用方法进行了举例分析,验证了模型的可用性.

  8. Ballistics for the neurosurgeon.

    Science.gov (United States)

    Jandial, Rahul; Reichwage, Brett; Levy, Michael; Duenas, Vincent; Sturdivan, Larry

    2008-02-01

    Craniocerebral injuries from ballistic projectiles are qualitatively different from injuries in unconfined soft tissue with similar impact. Penetrating and nonpenetrating ballistic injuries are influenced not only by the physical properties of the projectile, but also by its ballistics. Ballistics provides information on the motion of projectiles while in the gun barrel, the trajectory of the projectile in air, and the behavior of the projectile on reaching its target. This basic knowledge can be applied to better understand the ultimate craniocerebral consequences of ballistic head injuries.

  9. Six-Degree-of-Freedom Digital Simulations for Missile Guidance and Control

    Directory of Open Access Journals (Sweden)

    Yongjie Xu

    2015-01-01

    Full Text Available Six-degree-of-freedom ballistic trajectory model can be used to verify design indicators, performance parameters, and correctness so they have been put forward in the missile argumentation and design process. Mathematical simulation is the basis of late semiphysical simulation and field firing testing, and it can greatly reduce the field shooting test time, which shortens the missile test cycle and so reduces costs.

  10. Ballistic missile burnout states estimation based on exponential weighted recursive least square method%弹道导弹关机点状态估计的指数加权递归最小二乘方法

    Institute of Scientific and Technical Information of China (English)

    柴华; 梁彦刚; 唐国金

    2014-01-01

    Under the early warning of two passive satellite-borne sensors,the exponential weighted recursive least square method was applied to the burnout states estimation of ballistic targets.Due to the weighting factor can characterize the local quasi-linearity of the boost phase trajectory of the target,so to some extent the dilemma that generic polynomial cannot handle the whole boost phase of the target can be overcome.Through a dynamic analysis,the kinematic characteristics of boost phase target along the orientation of vertical surface were explored.On that basis,a novel boost phase motion model is proposed,which is more accurate than traditional planar motion model.Simulation results show that the proposed approach is superior to the traditional ones.%在双星预警条件下,将指数加权递归最小二乘算法应用于目标关机点状态估计问题中。通过引入加权因子对目标助推段运动的局部拟线性特性进行描述,从而在一定程度上克服了一般的线性多项式模型难以准确刻画整个助推段运动的难题。通过对助推段目标动力学特性的分析,考察了目标在垂直射面方向上的运动特性。在此基础上,提出了一种更为准确的助推段运动模型。仿真算例表明,所提出的关机点状态估计方法相对于传统的方法具有一定的优越性。

  11. "Air Attack" Overcoming "Victory on the Battlefield" in the Pursuit of Jointness for the Army Air and Missile Defense

    Science.gov (United States)

    2007-11-02

    be tasked as part of the Air Tasking Order (ATO), or to capitalize on Joint Suppression of Enemy Air Defense (J-SEAD) capability that the Air Force...requirement for organic immediate suppressive fires that, despite their best efforts, fighters could not deliver.”16 Some problems were...steps to address the crew proficiency disparity there are still indicators that training distractors continue to adversely affect training. Prior to

  12. Cruise Missile Attack Are We Prepared

    Science.gov (United States)

    2007-03-09

    to be met to make its air and missile defense systems interoperable with others throughout the military because the requirements for SIAP [Single...Single Integrated Air Picture ( SIAP ) and Integrated Fire Control (IFC). SIAP “is the product of fused, near real-time and real-time data from...guidance of the Assistant Secretary of the Army for Acquisition, Logistics, and Technology (ASAALT), the Joint SIAP System Engineering Organization (JSSEO

  13. Detection Performance Assessment of Ground-Based Phased Array Radar for Ballistic Targets%地基相控阵雷达对弹道目标的探测性能评估

    Institute of Scientific and Technical Information of China (English)

    李星星; 姚汉英; 孙文峰

    2014-01-01

    为解决地基相控阵雷达对弹道目标探测的最优部署问题,建立弹道中段目标轨道运动和进动模型,提出弹道中段多部地基相控阵雷达的弹道目标探测概率模型,以及平均检测概率、稳定跟踪时间和资源冗余时间3种组合的雷达探测性能评估指标。依据弹道目标RCS及探测距离随观测时间的变化情况,通过仿真实验对多种部署方式下地基雷达对弹道目标探测性能评估指标的分析,得出的结论为弹道导弹防御系统中地基雷达的部署方式提供了有效的参考依据。%In order to solve the optimal deployment problem of ground-based phased array radar in detecting ballistic targets,the orbit motion and precession motion models of ballistic targets were built up,and the detection probability model for ballistic targets by using several ground-based phased array radars was proposed.Three evaluation indexes of radars'detection performance were given: average detection probability,stable tracking time and resource redundancy time .According to the variation of RCS and detection range for ballistic targets in midcourse,detection performance evaluation indexes of several radar deployment schemes were analyzed through experiments .The conclusion in this paper may provide some reference for deploying the ground-based radar in ballistic missile defense (BMD) system for targets'optimal detection.

  14. The Truth About Ballistic Coefficients

    CERN Document Server

    Courtney, Michael

    2007-01-01

    The ballistic coefficient of a bullet describes how it slows in flight due to air resistance. This article presents experimental determinations of ballistic coefficients showing that the majority of bullets tested have their previously published ballistic coefficients exaggerated from 5-25% by the bullet manufacturers. These exaggerated ballistic coefficients lead to inaccurate predictions of long range bullet drop, retained energy and wind drift.

  15. Missile injuries in head — neck and maxillo-facial region — an experience in eastern nepal

    OpenAIRE

    2008-01-01

    Ballistic injuries to head-neck and maxillofacial region is quite common problem nowadays. Most of the time the injuries seem to be dreadful but the mechanism of the injuries caused by ballistics and the anatomical conditions of maxillofacial and head-neck region mitigate the severity of the injuries. Proper primary management followed by reconstruction and management of associated injuries decreases the mortality and morbidity of missile injuries in head-neck and maxillofacial region. Eleven...

  16. Environment Impact Analysis Process. Small Intercontinental Ballistic Missile Program

    Science.gov (United States)

    1986-03-01

    OF INVESTIGATION: Regional Growth, and Associated Demands on Housing, Public Services, and Public Finance DISCUSSION: The potential deployment areas...AREAS OF INVESTIGATION: Regional Growth, and Associated Demands on Housing,a Public Services, and Public Finance DISCUSSION: The potential deployment...Housing, Public Services, and Public Finance DISCUSSION: The potential deployment areas for southern Nevada are dispersed over a four-county region

  17. The Intercontinental Ballistic Missile and Post Cold War Deterrence

    Science.gov (United States)

    2010-02-17

    Leadership or Extraordinary Lunacy?" Air University, 2008. Bodman, Samuel, Robert Gates and Condoleeza Rice. "National Security and Nuclear Weapons...nuclearweapons.html. Garden, Timothy. Can Deterrence Last? Edited by David Bolton, Military Power. London: Buchan and Enright , 1984. Gartzke, Erik and Matthew...Kroenig. "A Strategic Approach to Nuclear Proliferation." Journal of Conflict Resolution 53, no. 2 (2009): 151-60. Gates, Robert . "Gates Says U.S. Needs

  18. Legislative Environmental Impact Statement: Small Intercontinental Ballistic Missile Program.

    Science.gov (United States)

    1986-11-01

    east from San Luis , Arizona to about Dos Cabezas, Arizona (Figure 3.9.3-1). Quaternary faulting in extreme southeast Arizona is dominated by north...Orr, and R. Gary Roybal 1981 Water Resources of the Rincon and Mesilla Valleys and Adjacent Areas, New Mexico. New Mexico State Engineer Office

  19. GPS Instrumentation in Ballistic Missile Intercept Test and Evaluation

    Science.gov (United States)

    2007-11-02

    detected, there is no accuracy data provided from tests with near misses or impacts outside the instrumented impact zone. Whereas precision trajectory...to the same precision, but they provide no information for a near miss . However, understanding what caused a near miss is very important. The GPS...system can address small-scale trajectory deviations that accompany a near miss that may offer critical insights into the cause. Having precise

  20. 基于多维极化信息的弹道目标综合识别方法%Synthetic recognition method of ballistic targets based on multi-dimensional polarization information

    Institute of Scientific and Technical Information of China (English)

    庞礴; 代大海; 王雪松; 李永祯

    2013-01-01

    目标识别是弹道导弹防御系统的核心难题之一,针对弹道导弹突防过程中无源诱饵的极化识别问题进行了研究.首先,基于多个窄带和宽带极化特征量,并结合暗室测量数据,进行了极化特征提取和优选,去除了冗余的极化特征量.在此基础上,提出了一种基于宽窄带极化特征的弹道目标综合识别方法,并利用弹道目标的暗室实测数据进行了验证.结果表明综合识别方法和仅基于窄带或宽带极化特征的识别方法相比具有更好的目标识别性能.%Target recognition is the core difficulty in ballistic missile defense systems, this paper studies the polarization recognition problem of passive decoy during break through process of the ballistic missile. Firstly, based on a host of narrow and wide band polarization characteristics, and combined with data derived from ane-choic chamber measurement, this paper performs polarization characteristic extraction and filtration, and removes redundant polarization characteristics. A synthetic recognition method based on narrow and wide band polarization characteristics for ballistic targets is proposed, and data derived from anechoic chamber measurement is used for validation. The result shows that the synthetic recognition method has better recognition performance than recognition method based only on narrow or wide band polarization characteristics.

  1. Metamaterials for Ballistic Electrons

    CERN Document Server

    Dragoman, D; Dragoman, Daniela; Dragoman, Mircea

    2007-01-01

    The paper presents a metamaterial for ballistic electrons, which consists of a quantum barrier formed in a semiconductor with negative effective electron mass. This barrier is the analogue of a metamaterial for electromagnetic waves in media with negative electrical permittivity and magnetic permeability. Besides applications similar to those of optical metamaterials, a nanosized slab of a metamaterial for ballistic electrons, sandwiched between quantum wells of positive effective mass materials, reveals unexpected conduction properties, e.g. single or multiple room temperature negative differential conductance regions at very low voltages and with considerable peak-to-valley ratios, while the traversal time of ballistic electrons can be tuned to larger or smaller values than in the absence of the metamaterial slab. Thus, slow and fast electrons, analogous to slow and fast light, occur in metamaterials for ballistic electrons.

  2. Ballistic Test Facility

    Data.gov (United States)

    Federal Laboratory Consortium — The Ballistic Test Facility is comprised of two outdoor and one indoor test ranges, which are all instrumented for data acquisition and analysis. Full-size aircraft...

  3. Algorithm of reentry ballistic target tracking based on multiple model%基于多模型的再入弹道目标跟踪算法

    Institute of Scientific and Technical Information of China (English)

    钮俊清; 任清安; 刘军伟

    2015-01-01

    In the anti-missile defense system, the tracking and identification of reentry ballistic target are the critical problems. However, the traditional method could not applied to the tracking for different types of reentry ballistic targets and identification of the true or fake warhead. This paper focus on an algorithm of reentry ballistic target tracking based on multiple model. In this scheme, the multiple model configuration is used for tracking the different types of reentry ballistic targets, thus improving the tracking accuracy effectively, and meanwhile, possessing the fast rate of convergence and better precision for the ballistic coefficient estimation. Simulation results indicate that this proposed method improves the precision of target tracking greatly, compared to the conventional EKF algorithm, and has especially a higher precision for the ballistic coefficient estimation and a certain capability of identifying the true or fake warhead and robust tracking performance.%再入弹道导弹目标的跟踪和识别是反导防御体系中最关键的问题。针对传统的跟踪方法不能适用于不同类型的再入弹道目标的跟踪和真假弹头的识别问题,提出一种基于多模型的再入段弹道目标跟踪算法。该算法采用多模型的结构,适用于跟踪不同类型的再入弹道目标,可有效地提高跟踪精度;同时对于弹道系数的估计具有很快的收敛速度和较好的估计精度。仿真结果表明,与传统的EKF算法相比较,本文算法大幅提高了目标跟踪的精度,特别在弹道系数估计上精度较高,具有一定的识别真假弹头的能力和鲁棒的跟踪性能。

  4. Centralized interception coalition formation method in networked air defense missile systems%网络化防空导弹体系集中式拦截联盟形成方法

    Institute of Scientific and Technical Information of China (English)

    唐苏妍; 朱一凡; 葛伟; 李群

    2011-01-01

    Centralized interception coalition, which focuses on the method to allocate the targets, shooters and guidance sensors in order to maximize the effectiveness of the system, is one of the new problems in Networked Air Defense Missile Systems. According to the operational context, a constrained optirnization model was proposed for the problem and the particle swarm optimization algorithm was chosen to solve the model. To solve the local optimization problem of the algorithm, the creative thinking was introduced into particles from the cognitive psychology aspects. It is considered that creative thinking can improve the cognitive capability of particles to prevent the premature convergence problem. Based on the classical four-phase model in creative thinking process, a framework of creative thinking based particle swarm optimization algorithm was provided by adapting the evolution model. According to discrete characteristics of the problem, a discrete strategy was designed by setting the coding rules and the operation rules for particles' velocity and position. Experimental results show that the proposed algorithm has priority in solution quality and convergence rate.%集中式拦截联盟(CIC)形成是网络化防空导弹体系(NADMS)中的新问题,旨在确定目标、火力节点以及制导节点三者之间的最优匹配关系,以使得体系整体作战效能最大.根据问题背景,建立了CIC的约束优化问题模型,并选择收敛速度较快的粒子群优化(PSO)算法对模型进行求解.针对PSO的局部收敛问题,从认知心理学角度将人类特有的创造性思维(CT)引入粒子速度更新公式中,通过提升单个粒子的搜索能力来提高整个群体的寻优质量.基于CT过程经典的四阶段模型构建了算法框架,改进了PSO的速度更新公式.根据CIC问题特点,制定了编码策略及相关变量的离散化运算规则.实验结果证明了算法在CIC问题求解质量和收敛速度方面的优越性.

  5. Nanotechnology for missiles

    Science.gov (United States)

    Ruffin, Paul B.

    2004-07-01

    Nanotechnology development is progressing very rapidly. Several billions of dollars have been invested in nanoscience research since 2000. Pioneering nanotechnology research efforts have been primarily conducted at research institutions and centers. This paper identifies developments in nanoscience and technology that could provide significant advances in missile systems applications. Nanotechnology offers opportunities in the areas of advanced materials for coatings, including thin-film optical coatings, light-weight, strong armor and missile structural components, embedded computing, and "smart" structures; nano-particles for explosives, warheads, turbine engine systems, and propellants to enhance missile propulsion; nano-sensors for autonomous chemical detection; and nano-tube arrays for fuel storage and power generation. The Aviation and Missile Research, Development, and Engineering Center (AMRDEC) is actively collaborating with academia, industry, and other Government agencies to accelerate the development and transition of nanotechnology to favorably impact Army Transformation. Currently, we are identifying near-term applications and quantifying requirements for nanotechnology use in Army missile systems, as well as monitoring and screening research and developmental efforts in the industrial community for military applications. Combining MicroElectroMechanical Systems (MEMS) and nanotechnology is the next step toward providing technical solutions for the Army"s transformation. Several research and development projects that are currently underway at AMRDEC in this technology area are discussed. A top-level roadmap of MEMS/nanotechnology development projects for aviation and missile applications is presented at the end.

  6. Advanced sensors, telecommunications and data processing: Technological spin-offs from the Strategic Defense Initiative

    Energy Technology Data Exchange (ETDEWEB)

    Wood, L.L.

    1986-10-01

    While the details of Nitze Criteria-satisfying architectures for defense against strategic attack with ballistic missiles are still being worked out, it is already clear that quite advanced sensors, telecommunications and data processing technologies will be features of all of them. It is concluded that the SDI, due to its institutional youthfulness, its charter for large-scale research and its self-evident need for such technologies, is likely to dominate many aspects of these technology development areas during the next two decades, especially if it continues more-or-less as the current American Administration contemplates. Both the technical and the economic aspects of data-gathering and manipulation seem likely to be substantially enhanced, due to the existence of the SDI.

  7. Military and diplomatic roles and options for managing and responding to the proliferation of ballistic missiles and weapons of mass destruction. Final report: Program on Stability and the Offense/Defense Relationship

    Energy Technology Data Exchange (ETDEWEB)

    Hallenbeck, R.A.; Gill, J.M.; Murray, B.L.

    1993-05-26

    The March seminar, ``Military and Diplomatic Roles and Options`` for managing and responding to proliferation, featured three presentations: the military and diplomatic implications of preemptive force as a counterproliferation option; an in-depth assessment of the threat posed by biological weapons; and, a new proposed US counterproliferation policy.

  8. Why Not Extended Deterrence from Romania? U.S. European Phased Adaptive Approach (EPAA) and NATO’s Ballistic Missile Defense (BMD) Site at Deveselu Air Base in Romania

    Science.gov (United States)

    2011-12-01

    responsibility to cooperative institutions for managing security in crises amidst other global issues and expanding mercantilism .49 In U.S.-Europe...such fear still on their agenda ?71 Respect, fear, and resetting NATO policy is evidently critical to Russian civil-military relations, as well as to...Studies (2010): 66. “U.S.-Europe agenda over time, Russia remained the essential rationale, the dominant concern, and the unifying factor in the

  9. Application of Pontryagin’s Minimum Principle in Optimum Time of Missile Manoeuvring

    Directory of Open Access Journals (Sweden)

    Sari Cahyaningtias

    2016-11-01

    Full Text Available Missile is a guided weapon and designed to protect outermost island from a thread of other country. It, commonly, is used as self defense. This research presented surface-to-surface missile in final dive manoeuvre for fixed target. Furthermore, it was proposed manoeuvring based on unmanned aerial vehicle (UAV, autopilot system, which needs accuration and minimum both time and thrust of missile while attacking object. This paper introduced pontryagin’s Minimum Principle, which is useable to solve the problem. The numerical solution showed that trajectory of the missile is split it up in three sub-intervals; flight, climbing, and diving. The numerical simulation showed that the missile must climb in order to satisfy the final dive condition and the optimum time of a missile depend on initial condition of the altitude and the terminal velocity

  10. Analysis of Energy Dissipation Mechanisms of Woven Fabrics Subjected to Ballistic Impact

    OpenAIRE

    IŞIK, Halil; DEĞİRMENCİ, Ercan; EVCİ, Celal

    2013-01-01

    It is important for combat vehicles and technological defense systems used in the battlefield to be lightweight for maneuverability while they still provide effective protection for survivability. Desired ballistic protection of defense systems may be attained by armor systems developed with different materials. The most important factor in the design of armor is the optimization of ballistic protection/weight ratio. The protection degree needed for sufficient survivability is limited by the ...

  11. Joint Air-to-Surface Standoff Missile (JASSM)

    Science.gov (United States)

    2015-12-01

    Defense Program ICE - Independent Cost Estimate IOC - Initial Operational Capability Inc - Increment JROC - Joint Requirements Oversight Council $K...penetrating warhead with a robust blast fragmentation capability. The missiles employ an IIR seeker system to attack fixed, point targets requiring precision

  12. An Analysis of Theater Missile Defense Systems.

    Science.gov (United States)

    2007-11-02

    Ave. Fort Leavenworth, KS, 66027-1352 LTC John M. Rogers University of Kentucky College of Law Lexington, KY, 40506-0048 Naval War College Library ...Both President Clinton and the Chairman of the Joint Chiefs of Staff General John Shailikashvili have stated the country and the military are...1977), 84. 2 1William J. Durch, The ABM Treaty and Western Security (Cambridge: Ballinger Publishing, 1988), 36. 22Ibid., 8. 23Ernest J. Yanarella, The

  13. Army Air and Missile Defense. Future Challenges

    Science.gov (United States)

    2002-01-01

    Peace/ Colombia Scenario " Features of this Future "* Spread of democracy eliminates risk of wars "* EU, China, Japan economic, but not political, U.S...multinational effort to restore order to Bogota, Colombia , led by the U.S. Army. This would follow extensive and debilitating urban conflict between...Egypt Civil War Scenario . Features of this Future "* Nation-states destroyed in several regions by overpopulation , environmental degradation, ethnic

  14. Integrated Air and Missile Defense (IAMD)

    Science.gov (United States)

    2015-12-01

    capability to be deployed as integrated components in Army, Joint, Interagency, Inter-Governmental and Multi-National net-centric architectures ...Additionally, the IAMD PO will develop, acquire, field and sustain the IAMD Battle Command System (IBCS) component of the architecture and integrate...This innovative approach at modernization will reduce O&S costs and will enhance training. IAMD December 2015 SAR March 21, 2016 18:20:50

  15. Joint Air-to-Surface Standoff Missile (JASSM)

    Science.gov (United States)

    2013-12-01

    Retrieval Dev Est - Development Estimate DoD - Department of Defense DSN - Defense Switched Network Econ - Economic Eng - Engineering Est...Missile Reliability (KSA) (CPD para 6.2.8) 4th Lot .91 4th Lot. 91 IOT &E .80 4th Lot .85 IOT &E .95 4th Lot .91 JASSM December 2013 SAR April 16, 2014 17...Acronyms and Abbreviations CPD - Capability Production Document IOT &E - Initial Operational Test and Evaluation KPP - Key Performance Parameter KSA - Key

  16. DEPARTMENT OF DEFENSE: A Departmentwide Framework to Identify and Report Gaps in the Defense Supplier Base Is Needed

    Science.gov (United States)

    2008-10-01

    suppliers and obsolete or emerging echnologies —these criteria have primarily been applied to the missile and pace sectors and have not been used to...Fighter Attack Aircraft X X Joint Tactical Radio System—Ground Mobile Radio X X MQ-8B Navy Fire Scout Unmanned Helicopter X MQ-9 Reaper Armed...X JTRS-GMR Joint Tactical Radio System Ground Mobile Radio X X X LGM-30 Minuteman III Ground-Launched Intercontinental Ballistic Missile (ICBM

  17. CMC occasional papers : a missile stability regime for South Asia.

    Energy Technology Data Exchange (ETDEWEB)

    Khan, Feroz Hassan (Pakistan Army, Islamabad, Pakistan); Vannoni, Michael Geoffrey; Rajen, Gaurav (Gaia Research Consulting, Albuquerque, NM)

    2004-06-01

    India and Pakistan have created sizeable ballistic missile forces and are continuing to develop and enlarge them. These forces can be both stabilizing (e.g., providing a survivable force for deterrence) and destabilizing (e.g., creating strategic asymmetries). Missile forces will be a factor in bilateral relations for the foreseeable future, so restraint is necessary to curtail their destabilizing effects. Such restraint, however, must develop within an atmosphere of low trust. This report presents a set of political and operational options, both unilateral and bilateral, that decreases tensions, helps rebuild the bilateral relationship, and prepares the ground for future steps in structural arms control. Significant steps, which build on precedents and do not require extensive cooperation, are possible despite strained relations. The approach is made up of three distinct phases: (1) tension reduction measures, (2) confidence building measures, and (3) arms control agreements. The goal of the first phase is to initiate unilateral steps that are substantive and decrease tensions, establish missiles as a security topic for bilateral discussion, and set precedents for limited bilateral cooperation. The second phase would build confidence by expanding current bilateral security agreements, formalizing bilateral understandings, and beginning discussion of monitoring procedures. The third phase could include bilateral agreements limiting some characteristics of national missile forces including the cooperative incorporation of monitoring and verification.

  18. The Iraqi Ballistic Missile Program: The Gulf War and the Future of the Missile Threat.

    Science.gov (United States)

    1992-06-01

    Bombing Survey, op. cit. p. 27. 5. These events were: November 25, 1944, Woolworths in Deptford, 160 killed: March 27. 1945, Hughes Mansions in...52 killed. The Hughes Mansions incident occurred on the last day of the V-2 attacks. See Norman Longmate, Hitler’s Rockets, Hutchinson & Co. Ltd ...Mifflin Company, Boston, 1953 p. 39. 11. On the V-l: Norman Longmate, The Doodlebugs, Hutchinson & Co., Ltd , London 1981, and on the V-2: Hitler’s

  19. Ballistic hole magnetic microscopy

    NARCIS (Netherlands)

    Haq, E.; Banerjee, T.; Siekman, M.H.; Lodder, J.C.; Jansen, R.

    2005-01-01

    A technique to study nanoscale spin transport of holes is presented: ballistic hole magnetic microscopy. The tip of a scanning tunneling microscope is used to inject hot electrons into a ferromagnetic heterostructure, where inelastic decay creates a distribution of electron-hole pairs. Spin-dependen

  20. Defense Technology Objectives of the Joint Warfighting Science and Technology and Defense Technology Area Plan.

    Science.gov (United States)

    1996-05-01

    occlusion , multipath etc.) through the use of inertial measurement systems (Interferometric Fiber Optic Gyro, Dynamically Tuned Gyro) and will...management systems provide mobile and semi- mobile assets (e.g., Abrams, Theater Missile Defense - TMD ) with low cost, low burden survivability...technology for development of an operational high energy Airborne Laser (ABL) for Theater Missile Defense ( TMD ). Address risk reduction issues for develop

  1. Ballistic negatron battery

    Energy Technology Data Exchange (ETDEWEB)

    Prasad, M.S.R. [Koneru Lakshmiah Univ.. Dept. of Electrical and Electronics Engineering, Green fields, Vaddeswaram (India)

    2012-07-01

    If we consider the Statistics there is drastic increase in dependence of batteries from year to year, due to necessity of power storage equipment at homes, power generating off grid and on grid Wind, PV systems, etc.. Where wind power is leading in renewable sector, there is a need to look at its development. Considering the scenario in India, most of the wind resource areas are far away from grid and the remaining areas which are near to grid are of low wind currents which is of no use connecting these equipment directly to grid. So, there is a need for a power storage utility to be integrated, such as the BNB (Ballistic Negatron Battery). In this situation a country like India need a battery which should be reliable, cheap and which can be industrialized. So this paper presents the concept of working, design, operation, adaptability of a Ballistic Negatron Battery. Unlike present batteries with low energy density, huge size, more weight, more charging time and low resistant to wear level, this Ballistic Negatron Battery comes with, 1) High energy storage capability (many multiples more than the present most advanced battery). 2) Very compact in size. 3) Almost negligible in weight compared to present batteries. 4) Charges with in very less time. 5) Never exhibits a wear level greater than zero. Seems like inconceivable but adoptable with simple physics. This paper will explains in detail the principle, model, design, construction and practical considerations considered in making this battery. (Author)

  2. Attacking the Cruise Missile Threat

    Science.gov (United States)

    2010-07-26

    little warning before a strike. Cruise missiles such as Silkworm and Exocet are designed to fly at “sea-skimming” levels only a few feet above the surface...the SS-N-2 Styx missile, a surface-to-surface antiship cruise missile. Most variants of modern cruise missiles are conversions of the Styx—the Silkworm ...number of Soviet built SS-N-2 Styxes that had been dismounted from boats.23 The Silkworm , the predominant of these variants, is the “Scud” of cruise

  3. Survivability Armor Ballistic Laboratory (SABL)

    Data.gov (United States)

    Federal Laboratory Consortium — The SABL provides independent analysis, ballistic testing, data collection, data reduction and qualification of current and advanced armors. Capabilities: The SABL...

  4. 77 FR 76938 - Defense Federal Acquisition Regulation Supplement: Contracting Activity Updates (DFARS Case 2012...

    Science.gov (United States)

    2012-12-31

    ... Defense Finance and Accounting Service, the Defense Information Systems Agency, the Defense Intelligence... Service, the Defense Threat Reduction Agency, the Missile Defense Agency, the National Geospatial-Intelligence Agency, the National Security Agency, the United States Special Operations Command, and the...

  5. Archie to SAM: A Short Operational History of Ground-Based Air Defense

    Science.gov (United States)

    2005-08-01

    Bulletin, 11 July 2000; and Robert Suro , “Missile Defense is Still Just A Pie in the Sky,” Washington Post, 12 February 2001. 31. The Aegis ships already...April 2000; “Misdirected Missile Defense Plan,” Los Angeles Times, 30 April 2000; and Robert Suro and Steven Mufson, “GAO Report Finds Fault with

  6. Discussion of the target-missile control scheme with supersonic speed at minimum altitude

    Institute of Scientific and Technical Information of China (English)

    2006-01-01

    An antiship missile with supersonic speed at minimum altitude is an effective weapon to break through a defense line. The former Soviet Union was a leader in this field since it had developed several kinds of antiship missiles which obtained supersonic speed at minimum altitudes. To counter this kind of missile,many countries have been developing corresponding antimissiles. For the purpose of verifing the antimissile missile's effectiveness in intercepting antiship missiles, a target-missile is needed. A target-missle is cheaper and can imitate the main characteristics of antiship missiles with supersonic speed at minimum altitude. In this paper, the control scheme of a target missile flying with supersonic speed at minimum altitude is studied. To counter the problem of hedgehopping over the sea, a control scheme utilizing a SINS + altimeter was proposed.In this scheme, both the quick response ability of altitude control and the anti-jamming problem were considered. A simulation experiment shows that when an integrated altitude control system is used, the anti-disturbance ability of the integrated altitude is good and the response speed of altitude control system can be dramatically improved.

  7. NPSNET: Modeling the In-Flight and Terminal Properties of Ballistic Munitions

    Science.gov (United States)

    1992-09-01

    Ballistics, 1920. Zill , D. G., A First Course in Differential Equations . Prindle, Weber. and Sclmuxidt, 1979. 53 INITIAL DISTRIBUTION LIST 1. Defense...spin velocity, PO is given by: PO bd (Eq 3.11) Equation 3.10 is a linear first-order differential equation in t, which may be solved readily. For the...simplification of the solution algorithm for the ballistic equations of motion. CPT Jon Walter and CPT Pat Warren saved countless hours of debugging

  8. Baseline marine biological survey at the Peacock Point outfall and other point-source discharges on Wake Atoll, Pacific Ocean in 1998-06 (NODC Accession 0000247)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The U.S. Army Space and Missile Defense Command (SMDC) in support of the Ballistic Missile Defense Organization (BMDO) sponsored a marine biological survey at Wake...

  9. Marine Biological Survey, Peacock Point Outfall, Wake Atoll June 1998 (NODC Accession 0000247)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The U.S. Army Space and Missile Defense Command (SMDC), in support of the Ballistic Missile Defense Organization (BMDO) sponsored a marine biological survey at Wake...

  10. Target acquisition probability at hand-off from midcourse to terminal guidance of a BVR air defense missile%超视距防空导弹中末制导交接班时的目标捕获概率研究

    Institute of Scientific and Technical Information of China (English)

    刘少波; 赵良玉

    2016-01-01

    中末制导交接班时的目标捕获概率是超视距防空导弹作战过程中的一个重要指标。为了快速计算中末制导交接班时的目标捕获概率,通过将导弹和目标的三维空间散布转换为视线坐标系下弹目相对位置向量的均值和方差,建立了一种红外导引头中末制导交接班时的目标捕获概率解析计算模型,并利用蒙特卡洛方法验证了其有效性。以此模型为基础,采用正交试验方法完成了目标捕获概率的灵敏度分析,极差和方差分析结果均表明,导引头视场角对目标捕获概率的影响最显著,弹目相对位置向量在视线坐标系OyL 轴和OzL 轴上投影的方差次之。%The target acquisition probability is an important parameter at hand⁃off from midcourse to terminal guidance of a be⁃yond visual range ( BVR) air defense missile. In order to calculate the target acquisition probability with low computational cost, the distributions of the missile and the target in three⁃dimensional space were transformed to the mean and variance of relative range vector in line⁃of⁃sight coordinate firstly, and then an analytical model was established to calculate the target acquisition probability of a kind of missile with an infrared seeker. After the analytical model was verified by the Monte Carlo method, it was employed to investigate the sensitivity of the target acquisition probability by means of orthogonal experiments. The results of range analysis and variance analysis both prove that the influence of seeker field angle on the target acquisition probability is dominated, and influences of variances of projections of relative range vector along OyL and OzL direction in line⁃of⁃sight coordinate are the second.

  11. 15 CFR 742.5 - Missile technology.

    Science.gov (United States)

    2010-01-01

    ... 15 Commerce and Foreign Trade 2 2010-01-01 2010-01-01 false Missile technology. 742.5 Section 742... BASED CONTROLS § 742.5 Missile technology. (a) License requirements. (1) In support of U.S. foreign... establish the existence of a contract. (d) Missile Technology Control Regime. Missile Technology...

  12. Numerical Simulation of Ballistic Impact of Layered Aluminum Nitride Ceramic

    Science.gov (United States)

    2015-09-01

    sufficient for cessation of relative motion of the projectile to that of the target. Impact velocities of 1,030; 1,100; and 1,160 m/s were considered...estimate or any other aspect of this collection of information, including suggestions for reducing the burden, to Department of Defense, Washington...Distribution List 12 iv List of Figures Fig. 1 Ballistic impact problem: a) projectile and target (3 tiles) and b) finite element mesh

  13. Comparison of different lateral acceleration autopilots for a surface-to-surface missile

    Directory of Open Access Journals (Sweden)

    Danilo V. Ćuk

    2011-07-01

    Full Text Available This paper presents a comparison of three lateral acceleration autopilots for a surface-to-surface missile: three-loop conventional acceleration autopilot, and gamma-dot and three-loop acceleration autopilot based upon the inverse-dynamic control. The surface-to-surface missile motion is described by nonlinear differential equations whose parameters change rapidly over a very wide range due to variable velocity and altitude. The requirement for the accurate controlling of the missile in such an environment represents a challenge for the autopilot designer. The brief review of the calculation of the autopilot gains is given using the concept of the 'point' stability for the linear time-varying system with 'frozen' dynamic coefficients. The method of the inverse-dynamic control is presented in the next section for two types of the autopilots: gamma-dot and acceleration autopilot. Both of them require the design of the estimators for the variables used as inputs to the control law. Finally, six-degree-of-freedom simulation results of the missile response to the demanded command on the typical ballistic trajectory are presented. The comparison of three autopilots considers the steady state errors and the sensitivity of the response to the highly variable environment. It was shown that the inverse-dynamic control can be very effective in the controlling of the surface-to-surface missile.

  14. Adaptive Missile Guidance Using GPS

    Directory of Open Access Journals (Sweden)

    Pallavi Sharad Rupnar

    2013-05-01

    Full Text Available The name adaptive means we can guide any missile using GPS in any critical conditions. GPS guided missiles, using the exceptional navigational and surveying abilities of GPS, after being launched, could deliver a warhead to any part of the globe via the interface of the onboard computer in the missile with the GPS satellite system.GPS allows accurate targeting of various military weapons including ICBMs, cruise missiles and precision-guided munitions. Artillery projectiles with embedded GPS receivers able to withstand accelerations of 12,000 G have been developed for use in 155mm.GPS guided weapons, with their technological advances over previous, are the superior weapon of choice in modern days

  15. 一种导弹防空视景仿真系统设计与Vega实现%Design and Realization of Scene Simulation System for Missile Defense Based on Vega

    Institute of Scientific and Technical Information of China (English)

    张继山; 程文娟; 陆文骏

    2012-01-01

    虚拟现实技术是目前国内外仿真界研究的热点之一,而视景仿真技术是其核心技术。利用Vega软件,研究了防空导弹发现并截击飞机的视景仿真过程,研究了点击式图形环境Lynx和Vega软件的开发方法,对类似问题的研究提供了帮助。%The technique of Virtual Reality is one of hot points in domestic and international simulation field, which studies simulation boundary. And technique of scene simulation is a core technique. By using Vega software, a complete guided missile is discovered and cutting the process of the shot airplane is designed, and the click type sketch environment of Lynx with the Vega software development method is also researched. It's helpful for similar problem.

  16. MIT Lincoln Laboratory Annual Report 2014

    Science.gov (United States)

    2014-01-01

    assessment of systems for defense against ballistic missiles, cruise missiles, and air vehicles. Katherine A. Rink Assistant Division Head, Air and...Missile Defense Radar being developed by the Navy, the Laboratory prototyped and tested the radar’s end-to-end ballistic missile defense discrimi- nation...media, social media forensics , and surveillance of foreign media. An interdivisional Laboratory team with expertise in human language technology

  17. Optimizing Ballistic Imaging Operations.

    Science.gov (United States)

    Wang, Can; Beggs-Cassin, Mardy; Wein, Lawrence M

    2017-04-03

    Ballistic imaging systems can help solve crimes by comparing images of cartridge cases, which are recovered from a crime scene or test-fired from a gun, to a database of images obtained from past crime scenes. Many U.S. municipalities lack the resources to process all of their cartridge cases. Using data from Stockton, CA, we analyze two problems: how to allocate limited capacity to maximize the number of cartridge cases that generate at least one hit, and how to prioritize the cartridge cases that are processed to maximize the usefulness (i.e., obtained before the corresponding criminal case is closed) of hits. The number of hits can be significantly increased by prioritizing crime scene evidence over test-fires, and by ranking calibers by their hit probability and processing only the higher ranking calibers. We also estimate that last-come first-served increases the proportion of hits that are useful by only 0.05 relative to first-come first-served.

  18. Estimation filters for missile tracking with airborne laser

    Science.gov (United States)

    Clemons, T. M., III; Chang, K. C.

    2006-05-01

    This paper examines the use of various estimation filters on the highly non-linear problem of tracking a ballistic missile during boost phase from a moving airborne platform. The aircraft receives passive bearing data from an IR sensor and range data from a laser rangefinder. The aircraft is assumed to have a laser weapon system that requires highly accurate bearing information in order to keep the laser on target from a distance of 100-200 km. The tracking problem is made more difficult due to the changing acceleration of the missile, especially during stage drop-off and ignition. The Extended Kalman Filter (EKF), Unscented Kalman Filter (UKF), 'bootstrap' Particle Filter (PF), and the Gaussian Sum Particle Filter (GSPF) are explored using different values for sensor accuracy in bearing and range, and various degrees of uncertainty of the target and platform dynamic. Scenarios were created using Satellite Toolkit © for trajectories from a Southeast Asia launch with associated sensor observations. MATLAB © code modified from the ReBEL Toolkit © was used to run the EKF, UKF, PF, and GSPF sensor track filters. Mean Square Error results are given for tracking during the period when the target is in view of the radar and IR sensors. This paper provides insight into the accuracy requirements of the sensors and the suitability of the given estimators.

  19. Bayesian Missile System Reliability from Point Estimates

    Science.gov (United States)

    2014-10-28

    OCT 2014 2. REPORT TYPE N/A 3. DATES COVERED - 4. TITLE AND SUBTITLE Bayesian Missile System Reliability from Point Estimates 5a. CONTRACT...Principle (MEP) to convert point estimates to probability distributions to be used as priors for Bayesian reliability analysis of missile data, and...illustrate this approach by applying the priors to a Bayesian reliability model of a missile system. 15. SUBJECT TERMS priors, Bayesian , missile

  20. China Report, Political, Sociological and Military Affairs, Introduction to National Defense Modernization %

    Science.gov (United States)

    2007-11-02

    earth satellites, and intercontin- ental balletic missiles were successfully developed, and units that could master and use these weapons and...missile. The required processing by the side that is being attacked is even more complex. A missile is fitted with seven warheads, of which some are...capacity of 1,300 telephone circuits. The Defense Communications Satellite III, which is now being developed, will be fitted with a new multibeam antenna

  1. Beyond the cold war nuclear legacy: offense-defense and the role of nuclear deterrence

    Energy Technology Data Exchange (ETDEWEB)

    Dunn, L.A

    2001-07-01

    Since the September 11 terrorist attacks on the World Trade Center and the Pentagon, the defense community of the United States focused overwhelmingly on countering the threat of global terrorism. This focus rightly reflects the danger of additional terrorist attacks against the American homeland, including conceivably even with nuclear weapons or radiological devices. At the same time, the December, 2001 announcement of the U.S. decision to withdraw from the 1972 Anti-Ballistic Missile (ABM) Treaty after the six month waiting period serves as a reminder that there still is considerable other outstanding 'defense business' confronting the United States and its European allies. In particular, it is increasingly essential to re-craft the Cold War nuclear weapons legacy, not only in its own right but because doing so can also have important payoffs for the success of the U.S.-led global anti-terrorist campaign. The following paper first describes some of the main features of the Cold War nuclear legacy. It then sketches a number of different schools of thought or camps that exist within the U.S. defense community in answer to the question, 'what next with nuclear weaponry?' In light of those contending positions, it then sets out a possible way ahead - moving to re-craft U.S. strategic dealings with Russia toward a non-adversary relationship, to avoid a new Cold War with China, and to put in place the right mix of offensive and defensive, nuclear and non-nuclear capabilities to contain 21. century proliferation dangers. (author)

  2. Research on the Separability of Ballistic Targets' Polarimetry Characteristics%弹道目标极化特征可分性研究

    Institute of Scientific and Technical Information of China (English)

    程旭; 马梁; 李永祯; 王雪松

    2011-01-01

    目前,极化特征在弹道目标识别中已呈现出极大的应用潜力.研究了弹道目标极化特征的可分性和优选问题,首先定义了物理意义明晰的特征可分性准则,并根据典型战情下弹道目标的全极化宽窄带雷达回波,分别对其窄带极化特征和宽带极化特征的可分性进行了分析;在此基础上,优选了一组可分性高、性能稳健的极化特征量.仿真结果表明:宽带极化特征的可分性优于窄带极化特征;目标进动角越大、进动周期越短,极化特征的可分性越差.这些结论为导弹攻防对抗条件下,弹头目标极化特征的利用提供了有价值的参考.%Presently polarimetry characteristics show great potential in the recognition of ballistic targets. The separability and optimization of ballistic targets' polarimetry characteristics have been researched in this paper. Firstly we define the separability criterion of polarimetry characteristics, which has distinct physical meaning. Based on full-polarization radar echoes of ballistic targets under typal battle situation, the separability of narrow-band and wide-band polarimetry characteristics is analysed. With these understandings, a set of polarimetry characteristics with high separability and robust performance are optimally selected. The simulation results suggest two conclusions. First, the separability of wide-band polarimetry characteristics is much better than narrow-band. Second, for greater angle of precession and shorter period of precession, the separability of polarimetry characteristics is worse. These conclusions are useful in measuring targets with polarimetry on the missile attack-defense background.

  3. Countermeasure effectiveness against an intelligent imaging infrared anti-ship missile

    Science.gov (United States)

    Gray, Greer J.; Aouf, Nabil; Richardson, Mark; Butters, Brian; Walmsley, Roy

    2013-02-01

    Ship self defense against heat-seeking anti-ship missiles is of great concern to modern naval forces. One way of protecting ships against these threats is to use infrared (IR) offboard countermeasures. These decoys need precise placement to maximize their effectiveness, and simulation is an invaluable tool used in determining optimum deployment strategies. To perform useful simulations, high-fidelity models of missiles are required. We describe the development of an imaging IR anti-ship missile model for use in countermeasure effectiveness simulations. The missile model's tracking algorithm is based on a target recognition system that uses a neural network to discriminate between ships and decoys. The neural network is trained on shape- and intensity-based features extracted from simulated imagery. The missile model is then used within ship-decoy-missile engagement simulations, to determine how susceptible it is to the well-known walk-off seduction countermeasure technique. Finally, ship survivability is improved by adjusting the decoy model to increase its effectiveness against the tracker.

  4. Analysis on Ship-to-Air Missile Kill ZoneUnder Ship-Ship Coordinate Air Defense%舰舰协同防空的舰空导弹杀伤区分析

    Institute of Scientific and Technical Information of China (English)

    姚跃亭; 赵建军; 刘林密; 崔伟成

    2011-01-01

    In order to describe the coupling kill zone in fleet coordinate air defense quantitatively, the depth and shape of it is studied. The characters of kill zone in single ship air defense is analyzed, the typical formation of fleet air defense is studied, and the hierarchical closed circle theory that hierarchical multi-layer in longitudinal direction and coupled of same order in latitudinal direction is given. According to the zero and none zero airway shortcut, the calculation model of first order coupled kill zone depth is brought forward. And it is extended to higher order. The sensitiveness of spacing interval and azimuth angle to the coupled kill zone depth is simulated. Results show that the model can be instructive.%针对舰艇编队协同防空时的耦合杀伤区形状及纵深等问题进行了研究,以定量地对编队耦合杀伤区进行简化描述.分析了单舰对典型目标的杀伤区特性,探讨了舰艇编队的典型防空队形,研究了纵向上递阶多层次、横向上同阶耦合的"递阶封闭圈原理".以一阶耦合杀伤区为重点,依据攻击目标的不同,将其分成相对航路捷径为零和相对航路捷径均非零两类情况建立了耦合杀伤区纵深的计算模型,并扩展到了高阶耦合的情况.研究了耦合杀伤区与舰舰间距和来袭目标进攻舷角等参数的相互关系以及灵敏度.结果表明建立的模型符合实际,具有一定的指导意义.

  5. Defense Science Board (DSB) Task Force on Cyber Deterrence

    Science.gov (United States)

    2017-02-01

    insider threats. The nuclear ballistic missile submarine (SSBN) security program provides a first-cut template for the type of program needed, which...conducting “false flag” operations intended to make it appear that someone else perpetrated an attack, forensic analysis of hacked systems – while...exploitation. Although such hard choices will never be eliminated, improving both the security of U.S. networks and the art of the possible for forensic

  6. Trajectory Optimization Design for Morphing Wing Missile

    Institute of Scientific and Technical Information of China (English)

    Ruisheng Sun; Chao Ming; Chuanjie Sun

    2015-01-01

    This paper presents a new particle swarm optimization ( PSO) algorithm to optimize the trajectory of morphing⁃wing missile so as to achieve the enlargement of the maximum range. Equations of motion for the two⁃dimensional dynamics are derived by treating the missile as an ideal controllable mass point. An investigation of aerodynamic characteristics of morphing⁃wing missile with varying geometries is performed. After deducing the optimizing trajectory model for maximizing range, a type of discrete method is put forward for taking optimization control problem into nonlinear dynamic programming problem. The optimal trajectory is solved by using PSO algorithm and penalty function method. The simulation results suggest that morphing⁃wing missile has the larger range than the fixed⁃shape missile when launched at supersonic speed, while morphing⁃wing missile has no obvious range increment than the fixed⁃shape missile at subsonic speed.

  7. BALLISTIC RESISTANT ARTICLES COMPRISING TAPES

    NARCIS (Netherlands)

    VAN DER EEM, JORIS; HARINGS, JULES; JANSE, GERARDUS; TJADEN, HENDRIK

    2015-01-01

    The invention pertains to a ballistic-resistant moulded article comprising a compressed stack of sheets comprising reinforcing tapes having a tensile strength of at least 1.0 GPa, a tensile modulus of at least 40 GPa, and a tensile energy-to-break of at least 15 J/g, the direction of the tapes withi

  8. Ballistics examination of air rifle.

    Science.gov (United States)

    Bogiel, G

    2014-01-01

    The aim of this paper is to determine the velocity, energy, maximum range and distance at which pellets fired from an air rifle of kinetic energy below 17 J can pose a threat to unprotected human skin. Doppler radar equipment and exterior ballistics software were used in this examination.

  9. Ballistics examination of air rifle

    Directory of Open Access Journals (Sweden)

    Grzegorz Bogiel

    2014-08-01

    Full Text Available The aim of this paper is to determine the velocity, energy, maximum range and distance at which pellets fired from an air rifle of kinetic energy below 17 J can pose a threat to unprotected human skin. Doppler radar equipment and exterior ballistics software were used in this examination.

  10. Ballistics examination of air rifle

    OpenAIRE

    2014-01-01

    The aim of this paper is to determine the velocity, energy, maximum range and distance at which pellets fired from an air rifle of kinetic energy below 17 J can pose a threat to unprotected human skin. Doppler radar equipment and exterior ballistics software were used in this examination.

  11. Student Papers on Strategic Defense Initiative.

    Science.gov (United States)

    1985-01-01

    force". The Army’s recent emphasis on maneuver and mobil - ity, and the employment of smaller units, demonstrates the utility of this doctrine...to forgo the use of defensive space systems, since some of the techonology now investigated could at least pro- tect missile sites, and make the

  12. Defense Acquisitions: Assessments of Selected Weapon Programs

    Science.gov (United States)

    2013-03-01

    Radios, Joint Land Attack Cruise Missile Defense Elevated Netter Sensor System, C-130 Avionics Modernization Program, or National Polar-orbiting...investigation of hypoxia-like physiological symptoms experienced by some F- 22A pilots, an issue identified as being significant starting in 2008 and

  13. Robust missile feedback control strategies

    NARCIS (Netherlands)

    Trottemant, E.J.; Scherer, C.W.; Weiss, M.; Vermeulen, A.

    2010-01-01

    The nature of the missile interception problem with two noncooperative players leads to the field of differential games. Introducing nonlinear uncertain models can potentially lead to nonexistence of game theoretic equilibrium strategies, computationally intractable problems, and/or highly reduced p

  14. A Direct Interception Missile Assignment Model in Firepower Planning of Double-Layer Anti-Missile Combat%直接分配到弹的双层反导火力规划模型

    Institute of Scientific and Technical Information of China (English)

    李龙跃; 刘付显; 杨国哲; 赵麟锋

    2014-01-01

    Firepower application is one of the core problem in anti-missile power construction,Firepower Planning of double-layer anti-missile combat in terminal phase is a Nondeterministic polynomial hard Mod-eling question.We analysis the problem,when to assign the interception missiles to the targets and give the model assumptions;Then we establish the direct interception missile assignment model in firepower planning of double-layer anti-missile combat This model break the research which targets only can be as-signed to the weapon system or fire units in the past,assigned the interception missiles to ballistic missiles one by one,it's a new idea about firepower planning.%反导作战火力运用是反导力量建设的核心内容之一,末段双层反导火力规划是一个复杂的不确定多约束条件优化问题,对火力规划进行了问题分析、弹-目分配时机分析和模型假设;分2个阶段建立了直接分配到弹的末段双层反导火力规划模型,模型重点考虑拦截目标与拦截弹杀伤时间窗口的对应关系,建立起武器系统拦截弹与来袭目标的弹-目对应分配关系,提供一种新的、快速的双层反导火力规划方法。

  15. Analyzing and designing object-oriented missile simulations with concurrency

    Science.gov (United States)

    Randorf, Jeffrey Allen

    2000-11-01

    A software object model for the six degree-of-freedom missile modeling domain is presented. As a precursor, a domain analysis of the missile modeling domain was started, based on the Feature-Oriented Domain Analysis (FODA) technique described by the Software Engineering Institute (SEI). It was subsequently determined the FODA methodology is functionally equivalent to the Object Modeling Technique. The analysis used legacy software documentation and code from the ENDOSIM, KDEC, and TFrames 6-DOF modeling tools, including other technical literature. The SEI Object Connection Architecture (OCA) was the template for designing the object model. Three variants of the OCA were considered---a reference structure, a recursive structure, and a reference structure with augmentation for flight vehicle modeling. The reference OCA design option was chosen for maintaining simplicity while not compromising the expressive power of the OMT model. The missile architecture was then analyzed for potential areas of concurrent computing. It was shown how protected objects could be used for data passing between OCA object managers, allowing concurrent access without changing the OCA reference design intent or structure. The implementation language was the 1995 release of Ada. OCA software components were shown how to be expressed as Ada child packages. While acceleration of several low level and other high operations level are possible on proper hardware, there was a 33% degradation of 4th order Runge-Kutta integrator performance of two simultaneous ordinary differential equations using Ada tasking on a single processor machine. The Defense Department's High Level Architecture was introduced and explained in context with the OCA. It was shown the HLA and OCA were not mutually exclusive architectures, but complimentary. HLA was shown as an interoperability solution, with the OCA as an architectural vehicle for software reuse. Further directions for implementing a 6-DOF missile modeling

  16. Cooperative Monitoring Center Occasional Paper/4: Missile Control in South Asia and the Role of Cooperative Monitoring Technology

    Energy Technology Data Exchange (ETDEWEB)

    Kamal, N.; Sawhney, P.

    1998-10-01

    The succession of nuclear tests by India and Pakistan in May 1998 has changed the nature of their missile rivalry, which is only one of numerous manifestations of their relationship as hardened adversaries, deeply sensitive to each other's existing and evolving defense capabilities. The political context surrounding this costly rivalry remains unmediated by arms control measures or by any nascent prospect of detente. As a parallel development, sensible voices in both countries will continue to talk of building mutual confidence through openness to avert accidents, misjudgments, and misinterpretations. To facilitate a future peace process, this paper offers possible suggestions for stabilization that could be applied to India's and Pakistan's missile situation. Appendices include descriptions of existing missile agreements that have contributed to better relations for other countries as well as a list of the cooperative monitoring technologies available to provide information useful in implementing subcontinent missile regimes.

  17. Analysis of Rocket, Ram-Jet, and Turbojet Engines for Supersonic Propulsion of Long-Range Missles. II - Rocket Missile Performance

    Science.gov (United States)

    Huff, Vearl N.; Kerrebrock, Jack

    1954-01-01

    The theoretical performance of a two-stage ballistic rocket mis having a centerbody and two parallel boosters was investigated for J oxygen and ammonia-fluorine propellants. Both power-plant and missi parameters were optimized to give minimum cost on-the basis of the analysis for a range of 5500 nautical miles. After optimum values were found, each parameter was varied independently to determine its effect on performance of the missile. The missile using the ammonia-fluorine propellant weighs about one half as much as a missile using JP4-oxygen. Based on an expected unit cost of fluorine in quantity production, the ammonia-fluorine missile has a substantially lower relative cost than a JP4-oxygen missile. Optimum chamber pressures for both propellant systems and for both the centerbody and boosters were between 450 and 600 pounds per square inch. High design altitudes for the exhaust nozzle are desirable for both the centerbody and boosters. For the centerbody, the design altitude should be between 45,000 and 60,000 feet, with the value for ammonia-fluorine lower than that for JP4-oxygen. For the boosters, the design altitude should be 20,000 to 30,000 feet, with the value for the ammonia-fluorine. missile higher.

  18. One Dimensional Ballistic Electron Transport

    Directory of Open Access Journals (Sweden)

    Thomas K J

    2009-10-01

    Full Text Available Research in low-dimensional semiconductor systems over the last three decades has been largely responsible for the current progress in the areas of nanoscience and nanotechnology. The ability to control and manipulate the size, the carrier density, and the carrier type in two-, one-, and zero- dimensional structures has been widely exploited to study various quantum transport phenomena. In this article, a brief introduction is given to ballistic electron transport in one-dimensional quantum wires.

  19. Air-to-Air Missile Vector Scoring

    Science.gov (United States)

    2012-03-22

    64 4.6. Unscented Kalman Filter Performance in Air-to-Air Missile Scor - ing Application with Continuous Velocity Dynamics Model (Tar- get...Filter Performance in Air-to-Air Missile Scor - ing Application with Continuous Velocity Dynamics Model (Tar- get Aircraft Executing a Vertical Climb...Kalman Filter Performance in Air-to-Air Missile Scor - ing Application with Continuous Velocity Dynamics Model (Tar- get Aircraft Non-maneuvering

  20. Electro-chemical batteries for guided missiles

    Directory of Open Access Journals (Sweden)

    H. S. Jaggi

    1966-05-01

    Full Text Available Electro-chemical batteries owing to their simplicity and ease of stowage form one of the sources of electrical power inside a missile. However, all batteries are not suited for this application. This article describes the special features required of a missile borne battery pack and discusses the characteristics of various types of batteries available today in the world. Conclusions have been drawn as to the most suitable types of batteries for missile applications.

  1. Defense: FY2012 Budget Request, Authorization and Appropriations

    Science.gov (United States)

    2012-02-13

    Senate versions of the bill would have done). The ships for which most of the total cost is authorized in FY2012 include two Virginia -class submarines, a...New START Treaty: Central Limits and Key Provisions, by Amy F. Woolf . Defense: FY2012 Budget Request, Authorization and Appropriations...Missile Defense and Offensive Arms Reductions: A Review of the Historical Record, by Steven A. Hildreth and Amy F. Woolf . Defense: FY2012 Budget

  2. Reference ballistic imaging database performance.

    Science.gov (United States)

    De Kinder, Jan; Tulleners, Frederic; Thiebaut, Hugues

    2004-03-10

    Ballistic imaging databases allow law enforcement to link recovered cartridge cases to other crime scenes and to firearms. The success of these databases has led many to propose that all firearms in circulation be entered into a reference ballistic image database (RBID). To assess the performance of an RBID, we fired 4200 cartridge cases from 600 9mm Para Sig Sauer model P226 series pistols. Each pistol fired two Remington cartridges, one of which was imaged in the RBID, and five additional cartridges, consisting of Federal, Speer, Winchester, Wolf, and CCI brands. Randomly selected samples from the second series of Remington cartridge cases and from the five additional brands were then correlated against the RBID. Of the 32 cartridges of the same make correlated against the RBID, 72% ranked in the top 10 positions. Likewise, of the 160 cartridges of the five different brands correlated against the database, 21% ranked in the top 10 positions. Generally, the ranking position increased as the size of the RBID increased. We obtained similar results when we expanded the RBID to include firearms with the same class characteristics for breech face marks, firing pin impressions, and extractor marks. The results of our six queries against the RBID indicate that a reference ballistics image database of new guns is currently fraught with too many difficulties to be an effective and efficient law enforcement tool.

  3. Countering Air and Missile Threats

    Science.gov (United States)

    2012-03-23

    carrying the CMs. (2) SLCMs and ground-launched cruise missiles ( GLCMs ) present opportunities for detection as well as challenges for surveillance...if possible, and engage them before they can navigate to their targets. (6) Training patterns or identifiable launch sequence events for GLCMs are...rarely observed or practiced in an overt environment. Consequently, the probability is small for conclusively identifying a GLCM TEL using current

  4. Infrared Background and Missiles Signature Survey

    Directory of Open Access Journals (Sweden)

    D.V. Renuka

    2013-11-01

    Full Text Available The proliferation of the missile threats in the existing threat scenario for airborne platform is a serious point of consideration for any mission planning. Missile warning system is an electronic warfare support system which gives warning to the pilot when a missile is detected in the scenario. The airborne platform has to be installed with missile warning sensors to give a spherical coverage, so that the sensors can detect the IR intensity variation in the ground scenario. This IR intensity variation has to be further analysed to differentiate the raising missile intensity from the varying background clutter. In order to differentiate the threat from the background clutter, the system should have sufficient background data set for online comparison thereby having less false alarm rate. The efficiency and performance of any missile warning system is validated with respect to its probability of declaration against the false alarm rate. Hence, to realize an efficient functioning of missile warning system, building IR background data base and missile signature database are the primary task. This paper details the methodology to be adapted for the building of tactical missile IR signatures and background data.

  5. Infrared Background and Missiles Signature Survey

    Directory of Open Access Journals (Sweden)

    D.V. Renuka

    2013-12-01

    Full Text Available The proliferation of the missile threats in the existing threat scenario for airborne platform is a serious point of consideration for any mission planning. Missile warning system is an electronic warfare support system which gives warning to the pilot when a missile is detected in the scenario. The airborne platform has to be installed with missile warning sensors to give a spherical coverage, so that the sensors can detect the IR intensity variation in the ground scenario. This IR intensity variation has to be further analysed to differentiate the raising missile intensity from the varying background clutter. In order to differentiate the threat from the background clutter, the system should have sufficient background data set for online comparison thereby having less false alarm rate. The efficiency and performance of any missile warning system is validated with respect to its probability of declaration against the false alarm rate. Hence, to realize an efficient functioning of missile warning system, building IR background data base and missile signature database are the primary task. This paper details the methodology to be adapted for the building of tactical missile IR signatures and background data.Defence Science Journal, 2013, 63(6, pp.611-615, DOI:http://dx.doi.org/10.14429/dsj.63.5762

  6. Use of noise attenuation modeling in managing missile motor detonation activities.

    Science.gov (United States)

    McFarland, Michael J; Watkins, Jeffrey W; Kordich, Micheal M; Pollet, Dean A; Palmer, Glenn R

    2004-03-01

    The Sound Intensity Prediction System (SIPS) and Blast Operation Overpressure Model (BOOM) are semiempirical sound models that are employed by the Utah Test and Training Range (UTTR) to predict whether noise levels from the detonation of large missile motors will exceed regulatory thresholds. Field validation of SIPS confirmed that the model was effective in limiting the number of detonations of large missile motors that could potentially result in a regulatory noise exceedance. Although the SIPS accurately predicted the impact of weather on detonation noise propagation, regulators have required that the more conservative BOOM model be employed in conjunction with SIPS in evaluating peak noise levels in populated areas. By simultaneously considering the output of both models, in 2001, UTTR detonated 104 missile motors having net explosive weights (NEW) that ranged between 14,960 and 38,938 lb without a recorded public noise complaint. Based on the encouraging results, the U.S. Department of Defense is considering expanding the application of these noise models to support the detonation of missile motors having a NEW of 81,000 lb. Recent modeling results suggest that, under appropriate weather conditions, missile motors containing up to 96,000 lb NEW can be detonated at the UTTR without exceeding the regulatory noise limit of 134 decibels (dB).

  7. 33 CFR 334.1130 - Pacific Ocean, Western Space and Missile Center (WSMC), Vandenberg AFB, Calif.; danger zones.

    Science.gov (United States)

    2010-07-01

    ... Missile Center (WSMC), Vandenberg AFB, Calif.; danger zones. 334.1130 Section 334.1130 Navigation and Navigable Waters CORPS OF ENGINEERS, DEPARTMENT OF THE ARMY, DEPARTMENT OF DEFENSE DANGER ZONE AND..., Calif.; danger zones. (a) The Area. (1) The waters of the Pacific Ocean in an area extending...

  8. The Military Dimensions of U.S.-China Security Cooperation: Retrospective and Future Prospects

    Science.gov (United States)

    2010-09-01

    Chinese Silkworm anti-ship missiles to the Iranians. Within U.S. defense circles, what was even more disquieting than the Silkworm missile sales was...China’s sale of CSS-2 intermediate-range ballistic missiles (IRBMs) to Saudi Arabia in 1988.14 The Silkworm missile sale was an operational- and tactical

  9. Dictionary of Missile and Artillery Terms

    Science.gov (United States)

    1982-05-20

    measure) - instrument that measures the magnitude of acceleratinn (delay). A. is a mechanism with a pendulum whose mass reacts to acceleration. It is...rockets of various classes and roles. 192 RAKETNYY KATER [Missile Boat] - military surface vessel having missiles on board. RAKETNYY SPASATEL’NYY DVIGATEL

  10. Infrared ship/decoy/missile encounter model

    Science.gov (United States)

    Morin, Josee; Reid, Francoise; Morin, Andre

    1993-08-01

    Simulations of missile-ship-countermeasures engagements are used to determine the effective ways of defending a ship against infrared-guided missile threats. This paper describes one type of simulation that models the engagement of a ship deploying IR decoys by an infrared-guided seeker-head missile. This model was developed to assess the efficiency of IR decoys in protecting ships against these missiles. The simulation, Missile Infrared Decoy And Ship (MIDAS), is composed of three major blocks, the infrared scene generation, the seeker simulation and the missile dynamics simulation. The infrared scene generation block produces a three-dimensional IR scene from the target ship and flare models and transforms it into the two-dimensional IR image viewed by the seeker. The seeker simulation block is based on a generic conical scan seeker which uses a crossed-detector array for target detection. It processes the IR image to select a target and generates a steering command. The missile dynamics block computes the changes in missile trajectory according to the seeker steering command. The computations performed by each of the three blocks are explained in detail.

  11. Discrete Deterministic Modelling of Autonomous Missiles Salvos

    Directory of Open Access Journals (Sweden)

    Momcilo Milinovic

    2014-09-01

    Full Text Available The paper deals with mathematical models of sequent salvos battle, of autonomous flight missiles (AFM organized in the groups of combatants. Tactical integration of AFM system distance-controlled weapon is considered by performances of simultaneous approaches on targets, and continual battle models of guerilla and direct fire, are redesigned to the discrete-continual mixed model, for checking missiles sudden, and further salvos, attack effects. Superiority parameters, as well as losses and strengths of full, or the part of salvo battle, for the missiles groups as technology sub-systems combatants’, is expressed by mathematical and simulation examples. Targets engagements capacities of the missiles battle unit, is conducted through designed scenarios and mathematically derived in the research. Model orientated on answers about employment of rapid reaction defending tactics, by distance missiles attacks.Defence Science Journal, Vol. 64, No. 5, September 2014, pp.471-476, DOI:http://dx.doi.org/10.14429/dsj.64.5791

  12. Developing Effective Adaptive Missile Crews and Command and Control Teams for Air and Missile Defense Systems

    Science.gov (United States)

    2007-03-01

    understanding of team roles and interdependencies; an adaptive network of roles; and a self-learning system—differentiate effective teams from a simple...aggregation of individuals. Effective teams work together toward common goals, learn as a group, and adjust their intra- team roles to reflect changing

  13. Air Attack on America?: Vulnerabilities, Capabilities, and Implications of the Air Defense of the United States

    Science.gov (United States)

    2013-06-01

    development of anti-ballistic missile ( ABM ) technology is outside the purview of the individual services. The threat is limited to ballistic... ABCs .” This article was supposed to answer questions such as: “Will the Russians make an atom-bomb attack on the U.S.? If it comes, what is the...We Accuse!,” Harper’s Magazine, October 1954, 43. 28 Time, “Atomic ABCs ,” Time, 21 August 1950, 16. 60 Service Has Entered the Supersonic Age

  14. Missile Defense: Opportunity Exists to Strengthen Acquisitions by Reducing Concurrency

    Science.gov (United States)

    2012-04-01

    order to model interceptor performance and thereby assess end- game performance and probability of success. 4 With HWIL models, closed loop...flight test FTM-16 E1 in March 2011, delivered the SM-3 Block IB pathfinder round to hold FTM-16 E2, and gained sufficient data in FTM-16 E2 in September

  15. Veiled Normalization: The Implications of Japanese Missile Defense

    Science.gov (United States)

    2008-09-01

    security of other regional actors.5 2 Alan Dupont, Unsheathing the Samurai Sword: Japan’s Changing...New Nationalism and the Strategic Architecture of Northeast Asia,” Asia Policy 3 (January 2007): 38-41. 7 Alan Dupont, Unsheathing the Samurai Sword...Accessed 14 August 2008. 108 Dupont, Alan. Unsheathing the Samurai Sword: Japan’s Changing Security Policy. The Lowy Institute for International

  16. Army Air and Missile Defense Network Design Facility (AAMDNDF)

    Data.gov (United States)

    Federal Laboratory Consortium — This facility provides JTIDS network designs and platform initialization load files for all Joint and Army-only tests, exercises, operations, and contingency events...

  17. Why the United States Must Deploy a National Missile Defense

    Science.gov (United States)

    1996-01-01

    intensity it IS drvlded mto regrons where long-standing ammosntes, stmmermg resentment toward wealthter parts of the global community, personal...President Boris Yeitsm proposed that the Umted States and Russia cooperate on building a global protectlon system for the world communq--while further...111 rely on Improved space-based sensors for detectton and warmng of mlsale launches and cuemg for ground- based interceptors at one or more sites

  18. A ballistics module as a part of the fire control system

    Directory of Open Access Journals (Sweden)

    Branka R. Luković

    2013-10-01

    Full Text Available This article presents a ballistics module as a part of the fire control system of weapons for fire support (mortars, artillery weapons and rocket launchers. The software is "open" with the prominence of autonomy work. It can be modulated and adapted on the user demand. Moreover, it is independent of the hardware base. Introduction: The fire control system is based on a ballistic module (BM which determines the firing data for each weapon tool in the battery. Ballistic calculations, for the given position of the target in relation to the position of tools in the given weather conditions, determine firing data (elevation, direction, timing and locating devices so that the missile seems to cause the desired effect. This paper gives the basic information about the features the BM performs and the manner of their implementation in the fire control system without going into algorithmic solution procedures. Ballistic problem in the fire control system: Ballistic calculation is based on a trajectory calculation of all kinds of projectiles (current, time-fuze, illuminating, smoke, with conventional propulsion, rocket, with built-in gas generator, etc.. Instead of previous solutions, where a trajectory calculation of the fire control system was done by approximate methods, in this BM the trajectory calculation is made by the same model with the same data as for a weapon and ammunition in the process of creating a firing table. The data used in the fire control system are made simultaneously with the preparation of firing tables for a particular tool and associated ammunition,. A modified model of particle, standardized at the NATO level, is also used. Taking into account the meteorological situation, before the trajectory calculation is done, a relative position of the target in relation to the position of the tool should be determined. A selection or loading check is carried out (possibility of reaching a given target as well as the point at which the

  19. Missile Defense: Assessment of DODs Reports on Status of Efforts and Options for Improving Homeland Missile Defense

    Science.gov (United States)

    2016-02-17

    locked into the original suppliers. Conversely, an open system, such as a personal computer , allows system components to be added, removed, modified...Express, Discover Card, MasterCard, Visa, check, or money order. Call for additional information. Connect with GAO on Facebook , Flickr, Twitter, and

  20. Preservation and storage of prepared ballistic gelatine.

    Science.gov (United States)

    Mattijssen, E J A T; Alberink, I; Jacobs, B; van den Boogaard, Y

    2016-02-01

    The use of ballistic gelatine, generally accepted as a human muscle tissue simulant in wound ballistic studies, might be improved by adding a preservative (Methyl 4-hydroxybenzoate) which inhibits microbial growth. This study shows that replacing a part of the gelatine powder by the preservative does not significantly alter the penetration depth of projectiles. Storing prepared blocks of ballistic gelatine over time decreased the penetration depth of projectiles. Storage of prepared gelatine for 4 week already showed a significant effect on the penetration depth of projectiles.

  1. Assessment of Ballistic Performance for Transparent Material

    Directory of Open Access Journals (Sweden)

    Basim M. Fadhil

    2014-05-01

    Full Text Available A finite element method was used to investigate the ballistic behavior of Polymethylmethacrylate (PMMA under impact loading by spherical steel projectile with different ranges of velocities. Three different target thicknesses were used in the experimental and the numerical works. A mathematical model has been used for the ballistic limit based on the experimental results. It has been found that projectile velocity and target thickness play an important role in the ballistic behavior of PMMA. A good agreement was found between the numerical, experimental, and the analytical result.

  2. Lithium/thionyl chloride batteries for the small intercontinental ballistic missile

    Science.gov (United States)

    Chang, V. D. A.; Wilson, J. P.; Bruckner, J.; Inenaga, B.; Hall, J. C.

    The Small ICBM (SICBM) requires two batteries for flight testing; while power for the instrumentation and range safety system (IRSS) is furnished by a five-function battery set, the guidance and control system is powered by a three-function airborne power supply (APS). The activated stand requirements of the IRSS are met by the use of LiAlCl4/SOCl2 electrolyte in all cells. The APS cells employ a slightly acidic electrolyte. The SICBM's IRSS battery has already completed a formal certification program, and is accordingly the first spaceflight-qualified reserve Li battery.

  3. An Examination of Intercontinental Ballistic Missile Development Within the United States From 1952 to 1965

    Science.gov (United States)

    2007-11-02

    1993), 26. 13Ibid., 72. 14Scott D. Sagan , Moving Targets: National Strategy and National Security, (Princeton, NJ: Princeton University Press, 1989), 23...and Company Inc., 1982. Reinhardt, George C., Colonel. American Strategy in the Atomic Age. Norman: University of Oklahoma Press, 1955. Sagan , Scott...at CARL . 6. Justification: Justification is required for any distribution other than described in Distribution Statement A. All or part of a thesis

  4. Hit-to-Kill Guidance Algorithm for the Interception of Ballistic Missiles During the Boost Phase

    Science.gov (United States)

    2006-06-01

    8217 and ’Auto’ buttons uicontrol (’string’,’Next Frame’, ... ’units’,’normal’,’pos’,[.66,.15,.13,.06], ... ’callback’,’set(gcf,’’userdata’’,1...8217); auto= uicontrol (’style’,’toggle’,’units’,’norm’,’pos’,... [.8 .15,.08,.06],’string’,’Auto’,’callback’,’set(gcf,’... ’userdata’’,1)’); set

  5. Environmental Impact Statement. Small Intercontinental Ballistic Missile Program. Malmstrom Air Force Base, Montana

    Science.gov (United States)

    1987-12-01

    Homestead Cordova Grain Elevator Dinkes Farmstead Bremmer Farmstead Alzheimer Farmstead H. Schwert Homestead Notes: 1National Historic Landmark...cyclotetramethylenetetranitramine) (48%); aluminum (elemental) (18%); proprietary plasticisers (12%); ammonium perchlorate (9%); and butanetroil trinitrate (6%). After curing, the...carbon monoxide (CO), which are potentially toxic. Other components include water (H 2 0), nitrogen (N2 ), carbon dioxide (C0 2 ). aluminum oxide

  6. Peacekeeper Ballistic Missile System Fiscal Impact Analysis of Deployment in Wyoming and Nebraska

    Science.gov (United States)

    1984-05-01

    REGION ON INFLUENCE JOBS, LOCAL AND REGIONAL HIRES, AND INMIGRATION 1991 1984 1985 1986 1987 1988 1989 1990 and on Total Additional 250 2,400 2,650 2,550...0 Weekly Commuters Average Annual 75 425 950 1,100 925 1,000 425 360 Inmigrant Workers Unsuccessful 30 185 180 150 165 110 70 0 Job-Seekers Inmigrant ...1 275 1,475 2,875 3,200 3,025 2,875 1,200 925 Population Note: 1 Includes inmigrant workers and unsuccessful job-seekers and accompanying dependents

  7. Navy SSBN(X) Ballistic Missile Submarine Program: Background and Issues for Congress

    Science.gov (United States)

    2011-04-22

    Background, Developments, and Issues, by Amy F. Woolf , discusses the SSBN(X) as an element of future U.S. strategic nuclear forces in the context of...Report RL33640, U.S. Strategic Nuclear Forces: Background, Developments, and Issues, by Amy F. Woolf . 2 In the designations SSN, SSGN, SSBN, and SSBN...SOF missions than do SSN operations. For more on the Navy’s SSNs and SSGNs, see CRS Report RL32418, Navy Virginia (SSN-774) Class Attack Submarine

  8. Ballistic Missile Proliferation a National Security Focus for the 21st Century

    Science.gov (United States)

    1994-04-21

    of Sonda sounding rockets, originally built for their civilian space program, to make artillery rockets. Because of their similar technological base...OTR21) 70 480 IS SS-1,ScudB(R-17) 300 985 IS AS4,Kitchen(KH-22) 400 1000 is, AS6,Kingfish(KSR-5) 400 1000 WS Belgium MGM52,Lance 130 450 IS Brazil Sonda

  9. Using the Land to Control the Sea? Chinese Analysts Consider the Antiship Ballistic Missile

    Science.gov (United States)

    2009-01-01

    assault or fi repower harassment attacks against important targets that the enemy depends on for . . . sea-based maneuvering.” This would typically be...involve hitting “carrier battle groups.” “Frontal fi repower deterrence” (• 前方火力慑阻), which involves fi ring intimidation salvos in front of a CSG’s...advance “to serve as a warning.” “Flank fi repower expulsion” (• 翼侧火力驱赶), which combines interception of a CSG by PLAN forces with intimidation

  10. China’s Growing Military Power: Perpectives on Security, Ballistic Missiles, and Conventional Capabilities

    Science.gov (United States)

    2002-09-01

    send th e crew h om e, w h ich , once m ade, began th e search for a linguistic form ula to explain it. W as h ington h ad not, in fact...tradeoffs betw een cooperation and confrontation w ith W as h ington. In th e lexicology of C h inese analy ses, all of th ese is sues and oth ers w ere

  11. Environmental Statement. Small Intercontinental Ballistic Missile Program, Malmstrom Air Force Base, Montana. Appendix E

    Science.gov (United States)

    1987-12-01

    houseehold. are the following qseatloos: opectod to tvo to the sees. as a result of projeot-toticoed economico 1) Whet are the estimating equations...lrtcct’ivn and masngement of hbld eagles. The safety and parking problema at the park, as neI as effect the facility’s 91 aIS ould reference the guidelines and...is identifying Texas-New Mexico and Arizona as the possible base a question that is raised over and over again, the role of for that deployment system

  12. Ballistic Missile Tracking Using the Interacting Multiple Model Joint Probabilistic Data Association Filter

    Science.gov (United States)

    2013-09-01

    if dkm(size(dkm,2))>600 ttk=1; else ttk=0; end if dom(size(dom,2))>600 tto =1; else tto =0...x4hm; txkm=xkm; tottk=ttk; totto= tto ; sitrick=sum(mitrick); sktrick=sum(mktrick); else md1=md1+d1m; md2=md2+d2m...sktrick=sktrick+sum(mktrick) totto=totto+ tto sitrick=sitrick+sum(mitrick) end end %Calculate average distance errors

  13. Investigation of the Effects of Target Feature Variations on Ballistic Missile RCS

    Science.gov (United States)

    2006-03-01

    Michael J. Havrilla (Member) date //Signed// ___________ Andrew J...like to thank my committee members, Dr. Michael J. Havrilla and Dr. Andrew J. Terzouli, for lending me their immense knowledge and expertise. Many

  14. Conventional Prompt Global Strike and Long-Range Ballistic Missiles: Background and Issues

    Science.gov (United States)

    2015-02-06

    the hypersonic glider technologies, it can pursue technologies that will reduce the cost and risk of the program even if they come with a reduced...Like the HTV-2, the AHW would use a hypersonic glider to deliver a conventional payload, but could be deployed on a booster with a shorter range than...73 Elaine M. Grossman, “Pentagon Nears Finding on Hypersonic Glider Test Failure,” Global Security Newswire, August 19, 2010. 74 Elaine M

  15. The Future of the U.S. Intercontinental Ballistic Missile Force

    Science.gov (United States)

    2014-01-01

    system would use a booster to launch a hypersonic glider and payload delivery vehicle capable of delivering a conventional warhead with the speed and...deeply buried target HE high explosive HGV hypersonic glide vehicle HML hardened mobile launcher Abbreviations xxv HTV hypersonic test vehicle...Agency’s (DARPA’s) hypersonic test vehicle (HTV), which we discuss in Chapter Five. U.S. ICBMs have historically existed solely to deliver nuclear weapons

  16. Environmental Impact Statement. Small Intercontinental Ballistic Missile Program Malmstrom Air Force Base, Montana. Appendix E

    Science.gov (United States)

    1987-12-01

    ste o rlede~d. The hesrirg officerr.0iy pa C4 E-67 DOCUMENT 10 DOCUMENT 10 PUBLIC HEARING COMMENT SHEET 5 Small IcaOM Progrsm Maimalronl Air Force Hase...Cultural Resourcies ttouing N.tiz. Ame~rican Resources Housin Native American Renvurers Educaion Biological Resources Educaton BrigelResources Publc .. e...Designated WepcctevrtlnrPriat ,rtcarotPniwi ilrgnvicimo (:1c " icial of Private Orfanination Cititei, pa ... Checek here it you wirh to ark e quriti

  17. Wave propagation in ballistic gelatine.

    Science.gov (United States)

    Naarayan, Srinivasan S; Subhash, Ghatu

    2017-01-23

    Wave propagation characteristics in long cylindrical specimens of ballistic gelatine have been investigated using a high speed digital camera and hyper elastic constitutive models. The induced transient deformation is modelled with strain rate dependent Mooney-Rivlin parameters which are determined by modelling the stress-strain response of gelatine at a range of strain rates. The varying velocity of wave propagation through the gelatine cylinder is derived as a function of prestress or stretch in the gelatine specimen. A finite element analysis is conducted using the above constitutive model by suitably defining the impulse imparted by the polymer bar into the gelatine specimen. The model results are found to capture the experimentally observed wave propagation characteristics in gelatine effectively.

  18. Ballistic Fracturing of Carbon Nanotubes.

    Science.gov (United States)

    Ozden, Sehmus; Machado, Leonardo D; Tiwary, ChandraSekhar; Autreto, Pedro A S; Vajtai, Robert; Barrera, Enrique V; Galvao, Douglas S; Ajayan, Pulickel M

    2016-09-21

    Advanced materials with multifunctional capabilities and high resistance to hypervelocity impact are of great interest to the designers of aerospace structures. Carbon nanotubes (CNTs) with their lightweight and high strength properties are alternative to metals and/or metallic alloys conventionally used in aerospace applications. Here we report a detailed study on the ballistic fracturing of CNTs for different velocity ranges. Our results show that the highly energetic impacts cause bond breakage and carbon atom rehybridizations, and sometimes extensive structural reconstructions were also observed. Experimental observations show the formation of nanoribbons, nanodiamonds, and covalently interconnected nanostructures, depending on impact conditions. Fully atomistic reactive molecular dynamics simulations were also carried out in order to gain further insights into the mechanism behind the transformation of CNTs. The simulations show that the velocity and relative orientation of the multiple colliding nanotubes are critical to determine the impact outcome.

  19. Final Environmental Assessment for Implementation of Defense BRAC Commission Recommendations for Dyess AFB, Texas

    Science.gov (United States)

    2007-05-01

    REGIONAL CIVIL ENGINEER - BALLISTIC MISSILE SUPPORT (AFESC) NORTON AIR FORCE BASE. CALIFORNIA 92409 James E. Bruseth, PhD Deputy State Historic...Force Base, (714) 382-3804, or Dr David Carmichael at Tetra Tech, Inc, San Bernardino California , (714) 381-1674. /7(: ~~ - MARY l~MAN, Maj, USAF...SCABRIUSCULA Federal Status: Endangered Wildflowers PLANTS Common Name: TEXAS KANGAROO RAT State Status: Threatened Scientific Name: DIPODOMYS ELATOR

  20. Ballistic Rail Gun Soft Recovery Facility

    Data.gov (United States)

    Federal Laboratory Consortium — The Ballistic Rail Gun Soft Recovery Facility accommodates a 155mm Howitzer, fired horizontally into a 104-foot long water trough to slow the projectile and recover...

  1. Joint Force Quarterly. Issue 73, 2nd Quarter 2014

    Science.gov (United States)

    2014-04-01

    For example, if missile defense is a priority then perhaps the Ballistic Missile Defense System (BMDS) is key cyber terrain. Step two in this...better forensics , and trustworthy computing platforms—is crucial. While one of the principal advantages to cyberspace is the ability to share...Silent Watch JFQ 73, 2nd Quarter 2014 capabilities to defeat a wide range of stressing ballistic missiles in either the exoatmosphere (outer space) or

  2. Quality and Reliability of Missile System

    Directory of Open Access Journals (Sweden)

    Mr. Prahlada

    2002-01-01

    Full Text Available Missile system is a single-shot weapon system which requires very high quality and reliability. Therefore, quality and reliability have to be built into the system from designing to testing and evaluation. In this paper, the technological challenges encountered during development of operational missile system and the factors considered to build quality and reliability through the design, manufacture, assembly, testing and by sharing the knowledge with other aerospace agencies, industries and institutions, etc. have been presented.

  3. DDG-1000 Missile Integration: A Case Study

    Science.gov (United States)

    2014-03-01

    Effectiveness (Pk) ‐ Platform  Environment ‐ Interface Definition Requirements Flow Interface  Definition Legend Figure 28. DDG-1000 Requirements Flow (from...development specifications and gaps that still exist in requirements. 71 Legacy Missile Requirements Legend DDG1000 Missile...Office Consolidates Programs, Cuts Costs.” Sea Power, Navy League of the United States, Arlington VA. February 2004. Accessed July 2013. http

  4. Failure analysis of high performance ballistic fibers

    OpenAIRE

    Spatola, Jennifer S

    2015-01-01

    High performance fibers have a high tensile strength and modulus, good wear resistance, and a low density, making them ideal for applications in ballistic impact resistance, such as body armor. However, the observed ballistic performance of these fibers is much lower than the predicted values. Since the predictions assume only tensile stress failure, it is safe to assume that the stress state is affecting fiber performance. The purpose of this research was to determine if there are failure mo...

  5. Variable centroid control scheme over hypersonic tactical missile

    Institute of Scientific and Technical Information of China (English)

    Yl; Yan(易彦); ZHOU; Fengqi(周凤岐)

    2003-01-01

    This paper presents a brand-new tactical missile control scheme--variable centroid vector control according to the international highlight in the field of missile control and the research status of hypersonic missile control in China. Four critical problems related with the new control method are included: improving phase control in the spinning missile single-channel control; establishing variable centroid controlled spinning missile attitude dynamics equations; analyzing variable centroid control strategies and analyzing the stability of the controlled missile and implementing robust control. The achievements and results obtained are valuable and helpful to the theoretical explorations and engineering applications.

  6. Influence of Missile Fusillade Engagement Mode on Operation Efficiency

    Institute of Scientific and Technical Information of China (English)

    BU Xian-jin; REN Yi-guang; SHA Ji-chang

    2008-01-01

    Shoot efficiency is one of the most important evaluation indexes of the operation efficiency of weapon system. In this paper, based on definitions of the probability and the expected number of missed attacking missiles, the expected numbers of anti-missiles and attacking missiles hit by single anti-missile, fusillade mechanism of multi-missile is analyzed systematically. The weapon operation efficiency in various engagement patterns is also studied. The results show that double missiles fusillade is the most feasible manner for increasing the weapon operation efficiency.

  7. Noise Parameters of CW Radar Sensors Used in Active Defense Systems

    OpenAIRE

    2012-01-01

    Active defense represents an innovative way of protecting military vehicles. It is based on the employment of a set of radar sensors which detect an approaching threat missile and activate a suitable counter-measure. Since the radar sensors are supposed to detect flying missiles very fast and, at the same time, distinguish them from stationary or slow-moving objects, CW Doppler radar sensors can be employed with a benefit. The submitted article deals with a complex noise analysis of this type...

  8. Ballistic Evaluation of 6055 Aluminum

    Science.gov (United States)

    2015-09-01

    the 3 AP projectiles that were used in this study. These projectiles are shown in Fig. 2. The APM2 projectiles have hardened steel cores with...PEREZ F RICKERT C FILAR R TRANCYGIER M MCDONNEL M ROGERS D TZELEPIS 1 PEO GCS (PDF) D SPENSER 1 OSHKOSH DEFENSE (PDF) M

  9. Missile captive carry monitoring using a capacitive MEMS accelerometer

    Science.gov (United States)

    Hatchell, Brian; Mauss, Fred; Santiago-Rojas, Emiliano; Amaya, Ivan; Skorpik, Jim; Silvers, Kurt; Marotta, Steve

    2010-03-01

    Military missiles are exposed to many sources of mechanical vibration that can affect system reliability, safety, and mission effectiveness. One of the most significant exposures to vibration occurs when the missile is being carried by an aviation platform, which is a condition known as captive carry. If the duration of captive carry exposure could be recorded during the missile's service life, several advantages could be realized. Missiles that have been exposed to durations outside the design envelop could be flagged or screened for maintenance or inspection; lightly exposed missiles could be selected for critical mission applications; and missile allocation to missions could be based on prior use to avoid overuse. The U. S. Army Aviation and Missile Research Development and Engineering Center (AMRDEC) has been developing health monitoring systems to assess and improve reliability of missiles during storage and field exposures. Under the direction of AMRDEC staff, engineers at the Pacific Northwest National Laboratory have developed a Captive Carry Health Monitor (CCHM) for the HELLFIRE II missile. The CCHM is an embedded usage monitoring device installed on the outer skin of the HELLFIRE II missile to record the cumulative hours the host missile has been in captive carry mode and thereby assess the overall health of the missile. This paper provides an overview of the CCHM electrical and package design, describes field testing and data analysis techniques used to identify captive carry, and discusses the potential application of missile health and usage data for real-time reliability analysis and fleet management.

  10. Who’s in Charge? Defense Policy Formation in Japan

    Science.gov (United States)

    2010-09-01

    Hongo , DPJ shows stress fractures under pressure of leadership, August 8, 2009, http://search.japantimes.co.jp/cgi-bin/nn20090808f1.html (accessed...ballistic shield.” September 1, 2000. Jane’s International Defense Review. http://www4.janes.com/subscribe (accessed August 18, 2010). Hongo , Jun

  11. The role of maxillofacial radiologists in gunshot injuries: a hypothesized missile trajectory in two case reports

    Science.gov (United States)

    Sansare, K; Khanna, V; Karjodkar, F

    2011-01-01

    Gunshot injuries are an emerging form of trauma that oral radiologists increasingly have to deal with. There are two main types of gunshot injuries: high-velocity and low-velocity bullet injuries. The outcome of high-velocity gunshot injury is usually fatal; however, a non-fatal low-velocity injury to the maxillofacial region is more likely to be encountered by the oral and maxillofacial radiologist. It is therefore important to up-to-date knowledge of ballistic science and its implications in the field of maxillofacial radiology. The ability of oral and maxillofacial radiologists to predict the missile trajectory will aid the assessment and localization of the damage caused by the bullet and its splinters. Predicting the missile trajectory may also be of help to law enforcement agencies and forensic scientists in determining the type of firearm used and direction of fire. This article, which examines two cases, attempts to highlight to the oral radiologist this emerging form of trauma and its implications. PMID:21159916

  12. Missile Captive Carry Monitoring using a Capacitive MEMS Accelerometer

    Energy Technology Data Exchange (ETDEWEB)

    Hatchell, Brian K.; Mauss, Fredrick J.; Santiago-Rojas, Emiliano; Amaya, Ivan A.; Skorpik, James R.; Silvers, Kurt L.; Marotta, Steve

    2010-04-08

    Military missiles are exposed to many sources of mechanical vibration that can affect system reliability, safety, and mission effectiveness. One of the most significant exposures to vibration occurs when the missile is being carried by an aviation platform, which is a condition known as captive carry. If the duration of captive carry exposure could be recorded during the missile’s service life, several advantages could be realized. Missiles that have been exposed to durations outside the design envelop could be flagged or screened for maintenance or inspection; lightly exposed missiles could be selected for critical mission applications; and missile allocation to missions could be based on prior use to avoid overuse. The U. S. Army Aviation and Missile Research Development and Engineering Center (AMRDEC) has been developing health monitoring systems to assess and improve reliability of missiles during storage and field exposures. Under the direction of AMRDEC staff, engineers at the Pacific Northwest National Laboratory have developed a Captive Carry Health Monitor (CCHM) for the HELLFIRE II missile. The CCHM is an embedded usage monitoring device installed on the outer skin of the HELLFIRE II missile to record the cumulative hours the host missile has been in captive carry mode and thereby assess the overall health of the missile. This paper provides an overview of the CCHM electrical and package design, describes field testing and data analysis techniques used to identify captive carry, and discusses the potential application of missile health and usage data for real-time reliability analysis and fleet management.

  13. Ballistic Response of Fabrics: Model and Experiments

    Science.gov (United States)

    Orphal, Dennis L.; Walker Anderson, James D., Jr.

    2001-06-01

    Walker (1999)developed an analytical model for the dynamic response of fabrics to ballistic impact. From this model the force, F, applied to the projectile by the fabric is derived to be F = 8/9 (ET*)h^3/R^2, where E is the Young's modulus of the fabric, T* is the "effective thickness" of the fabric and equal to the ratio of the areal density of the fabric to the fiber density, h is the displacement of the fabric on the axis of impact and R is the radius of the fabric deformation or "bulge". Ballistic tests against Zylon^TM fabric have been performed to measure h and R as a function of time. The results of these experiments are presented and analyzed in the context of the Walker model. Walker (1999), Proceedings of the 18th International Symposium on Ballistics, pp. 1231.

  14. Air Force Major Defense Acquisition Program Cost Growth Is Driven by Three Space Programs and the F-35A: Fiscal Year 2013 President’s Budget Selected Acquisition Reports

    Science.gov (United States)

    2014-01-01

    production FSD full-scale development FY fiscal year FYDP Future Years Defense Program GBS Global Broadcast System GLCM Ground Launched Cruise...Surveillance Target Attack Radar System (JSTARS) aircraft • Air-Launched Cruise Missile (ALCM) • Ground-Launched Cruise Missile ( GLCM ) • AGM-65A/B

  15. Small unmanned aircraft ballistic impact speed

    DEFF Research Database (Denmark)

    La Cour-Harbo, Anders

    2018-01-01

    A study of how smaller unmanned aircraft will fall in case of failure. The aim is to determine the impact speed of a drone givens its general shape and aerodynamic behavior. This will include both CFD simulations and real world test of ballistic drops of smaller drones.......A study of how smaller unmanned aircraft will fall in case of failure. The aim is to determine the impact speed of a drone givens its general shape and aerodynamic behavior. This will include both CFD simulations and real world test of ballistic drops of smaller drones....

  16. Current Trends in Tactical Missile Guidance

    Directory of Open Access Journals (Sweden)

    S. Vathsal

    2005-07-01

    Full Text Available The problem of tactical missile guidance is very challenging and has been treated using several basic metlfodologies in the past four decades. Major techniques can be grouped underclassical guidance laws, modern guidance laws, l'aws for manoeuvring targets, predictive guidance for endgame scenario, and guidance laws based on intelligent control methods. Each technique has some advantages and disadvantages while implementing in a practical system. Guidance law selection is dictated by nature of flight profile like boost, midcourse, terminal homing, etc, and also miss-distance and a single-shot kill probability. This paper presents a brief survey of the existing techniques and current trends in tactical missile guidance.

  17. EFP Warhead Missile Fuze Analysis and Simulation

    Institute of Scientific and Technical Information of China (English)

    LI Wei; FAN Ning-jun; WANG Zheng-jie

    2008-01-01

    The explosive formed penetrator(EFP)warhead missile projects the blast fragments in one direction normal to the missile longitudinal axis.Through analyzing on the two restrictions of EFP warhead explosion:trajectory restriction and attitude requirement,the concept of fuse time-delay tolerance is presented to be the measurement of the time of the EFP warhead explosion.The calculation models of fuze time-delaY tolerance under two restrictions are provided.Some crucial parameters playing important roles in calculation under attitude requirements are simulated.The simulation results show that the engagement plane angle,roll rate and warhead attack standoff influence the tolerance dramatically.

  18. An analysis of Common Missile and TOW 2B using the Janus combat simulation

    OpenAIRE

    2002-01-01

    Approved for public release; distribution is unlimited. The US Army is currently developing a new close combat missile system, Common Missile, to replace the aging Tubelaunched, Optically-tracked, Wire-guided (TOW 2B) and HELLFIRE missile systems. The Common Missile will have a greater range and improved target acquisition capability over the current missile systems. The purpose of this thesis is to compare the performance of the Common Missile and the TOW 2B missile in a simulated ground ...

  19. Rationale for wind-borne missile criteria for DOE facilities

    Energy Technology Data Exchange (ETDEWEB)

    McDonald, J R; Murray, R

    1999-09-01

    High winds tend to pick up and transport various objects and debris, which are referred to as wind-borne missiles or tornado missiles, depending on the type of storm. Missiles cause damage by perforating the building envelope or by collapsing structural elements such as walls, columns or frames. The primary objectives of this study are as follows: (1) to provide a basis for wind-borne or tornado missile criteria for the design and evaluation of DOE facilities, and (2) to provide guidelines for the design and evaluation of impact-resistant missile barriers for DOE facilities The first objective is accomplished through a synthesis of information from windstorm damage documentation experience and computer simulation of missile trajectories. The second objective is accomplished by reviewing the literature, which describes various missile impact tests, and by conducting a series of impact tests at a Texas Tech University facility to fill in missing information.

  20. 美国空射导弹拦截系统的作战应用分析%Analysis on Operational Applications of USA Air-launched Missile Interception System

    Institute of Scientific and Technical Information of China (English)

    宋文静; 曹泽阳; 张晋; 刘永兰

    2015-01-01

    Air-launched missile interception system is an interception mean of USA missile defense systems.Its main operational missions are analyzed, including missile defense mission, hypersonic speed missile interception mission in the air,multi-orbital air-craft interception mission and other defense missions.Taking missile defense mission as an example, its operational process is ana-lyzed, thus key links of air-launched missile anti-missile /anti-satellite system are given.Combined with main operational missions and operational process, special influence factors of its operational effectiveness are parsed.Studying on problems of its operational application, is benefit to improve operational effectiveness of the weapon equipment.%空射导弹拦截系统是美国弹道导弹防御体系的拦截手段之一,文中首先分析了空射导弹拦截系统的主要作战任务,包括弹道导弹防御任务、高超声速导弹空中截击任务、跨轨道飞行器拦截任务和其他防御任务;然后,以弹道导弹防御任务为例,对其作战过程进行了分析,进而给出了空射导弹反导/反卫拦截系统作战的关键环节;最后,结合主要作战任务和作战过程,剖析了其作战效能的特殊影响因素. 研究其作战应用问题,有益于提升该武器装备的作战效能.

  1. Graphene Triangular Ballistic Rectifier: Fabrication and Characterisation

    Science.gov (United States)

    Auton, Gregory; Kumar, Roshan Krishna; Hill, Ernie; Song, Aimin

    2016-09-01

    It has been shown that graphene can demonstrate ballistic transport at room temperature. This opens up a range of practical applications that do not require graphene to have a band gap, which is one of the most significant challenges for its use in the electronics industry. Here, the very latest high mobility graphene (>100,000 cm2 V-1 s-1) fabrication techniques will be demonstrated so that one such device, called the triangular ballistic rectifier (TBR), can be characterised. The TBR is a four-terminal device with a triangular anti-dot at their intersection; two sides of the triangle are positioned and angled such that ballistic carriers from the two input electrodes are redirected like billiard balls to one of the two output contacts irrespective of the instantaneous polarity of the input. A responsivity of 2400 mV mW-1 is demonstrated at room temperature from a low-frequency input signal. The ballistic nature of the device is justified and explained in more detail with low-temperature measurements.

  2. The Ballistic Cart on an Incline Revisited.

    Science.gov (United States)

    Serway, Raymond A.; And Others

    1995-01-01

    Presents the theory behind the mechanics demonstration that involves projecting a ball vertically upward from a ballistic cart moving along an inclined plane. The measured overshoot is believed to be due, in part, to the presence of rolling friction and the inertial properties of the cart wheels. (JRH)

  3. The Internal Ballistics of an Air Gun

    Science.gov (United States)

    Denny, Mark

    2011-01-01

    The internal ballistics of a firearm or artillery piece considers the pellet, bullet, or shell motion while it is still inside the barrel. In general, deriving the muzzle speed of a gunpowder firearm from first principles is difficult because powder combustion is fast and it very rapidly raises the temperature of gas (generated by gunpowder…

  4. Electron Interference in Ballistic Graphene Nanoconstrictions

    DEFF Research Database (Denmark)

    Baringhaus, Jens; Settnes, Mikkel; Aprojanz, Johannes

    2016-01-01

    We realize nanometer size constrictions in ballistic graphene nanoribbons grown on sidewalls of SiC mesa structures. The high quality of our devices allows the observation of a number of electronic quantum interference phenomena. The transmissions of Fabry-Perot-like resonances are probed...

  5. Principles of ballistics applicable to the treatment of gunshot wounds.

    Science.gov (United States)

    Swan, K G; Swan, R C

    1991-04-01

    Ballistics is the science of the motion of a projectile through the barrel of a firearm (internal ballistics), during its subsequent flight (external ballistics), and during its final complicated motion after it strikes a target (terminal ballistics). Wound ballistics is a special case of terminal ballistics. Although wound ballistics is at best sets of approximations, its principles enter usefully into an evaluation of a gunshot wound and its treatment. A special consideration in these cases is their medicolegal aspects. At a minimum, the medical team receiving the patient should exert care not to destroy the clothing and in particular to cut around and not through bullet holes, to turn over to law enforcement officials any metallic foreign body recovered from the patient, and to describe precisely, or even to photograph, any entrance or exit wounds.

  6. Minimum variation guidance laws for interceptor missiles

    NARCIS (Netherlands)

    Weiss, M.; Shima, T.

    2014-01-01

    This paper introduces a new approach to guidance law design using linear quadratic optimal control theory, minimizing throughout the engagement the variation of the control input as well as the integral control effort. The guidance law is derived for arbitrary order missile dynamics and target maneu

  7. CRANIOCEREBRAL MISSILE INJURY A STATISTICAL REVIEW

    Directory of Open Access Journals (Sweden)

    ALI ALIMOHAMMADI

    1986-05-01

    Full Text Available A Statistical report of 912 battle casualtiesadmitted in a special unit of the neurological surgery department during 49 months of the recent war was given. Methods of their evaluation, operative categories, management poli¬cies including techniques of Missile and bullet removal, and their complications were discussed.

  8. Two Penetration Models Featuring Bomber Defense Missiles against an AWACS Air Defense.

    Science.gov (United States)

    1981-12-01

    E’ 2Rdcm Etica = Etic d ( D x (25) Each bomber carries Ncmpb ALCMs, each of which pro- gresses through the corridor after launch at about the same...speed as the bomber. Therefore, the expected number of ALCMs in coverage during the ith bomber’s passage is Emic(i) E bic W PL Etica /Eticb (26) 79 where...that Pe = Pblv E1 + Pav EA’ (35) where Pblv = Pr(target is a bomber, given that AI is vectored) Eb (i) E bic (i) Epic (i) Ebic (+Ebic (i) mbP L Etica

  9. Planetary Defense From Space: Part 1-Keplerian Theory

    Science.gov (United States)

    Maccone, Claudio

    A system of two space bases housing missiles is proposed to achieve the Planetary Defense of the Earth against dangerous asteroids and comets. We show that the layout of the Earth-Moon system with the five relevant Lagrangian (or libration) points in space leads naturally to only one, unmistakable location of these two space bases within the sphere of influence of the Earth. These locations are at the two Lagrangian points L1 (in between the Earth and the Moon) and L3 (in the direction opposite to the Moon from the Earth). We show that placing bases of missiles at L1 and L3 would cause those missiles to deflect the trajectory of asteroids by hitting them orthogonally to their impact trajectory toward the Earth, so as to maximize their deflection. We show that the confocal conics are the best class of trajectories fulfilling this orthogonal deflection requirement. An additional remark is that the theory developed in this paper is just a beginning of a larger set of future research work. In fact, while in this paper we only develop the Keplerian analytical theory of the Optimal Planetary Defense achievable from the Earth-Moon Lagrangian points L1 and L3, much more sophisticated analytical refinements would be needed to: Take into account many perturbation forces of all kinds acting on both the asteroids and missiles shot from L1 and L3; add more (non-optimal) trajectories of missiles shot from either the Lagrangian points L4 and L5 of the Earth-Moon system or from the surface of the Moon itself; encompass the full range of missiles currently available to the US (and possibly other countries) so as to really see "which asteroids could be diverted by which missiles", even in the very simplified scheme outlined here. Outlined for the first time in February 2002, our Confocal Planetary Defense concept is a Keplerian Theory that proved simple enough to catch the attention of scholars, representatives of the US Military and popular writers. These developments could

  10. Modeling and Simulating Dynamics of Missiles with Deflectable Nose Control

    Institute of Scientific and Technical Information of China (English)

    Gao Yuan; Gu Liangxian; Pan Lei

    2009-01-01

    This article investigates the dynamic characteristics of deflectable nose missiles with rotary single-channel control. After introduction of effective attack and sideslip angles as well as quasi-body coordinates based on the spin characteristics of the missile's body, an integrated rigid kinetic model of missile with deflectable nose control is set up in the quasi-body coordinates considering the interaction between the missile's nose and body by using rootless multi-rigid-body system dynamics and is linearized. Then an analysis with simulation is conducted to investigate the coupling characteristics between the channels, the influences of nose deflection on the body and the dynamic characteristics of missile's body. The results indicate that various channels of missiles with deflectable nose control are coupled cross-linked; the nose deflection tends to make the body move in the opposite direction and, finally, evidences the correctness and reasonability of the kinetic model proposed by this article.

  11. Ballistic model to estimate microsprinkler droplet distribution

    Directory of Open Access Journals (Sweden)

    Conceição Marco Antônio Fonseca

    2003-01-01

    Full Text Available Experimental determination of microsprinkler droplets is difficult and time-consuming. This determination, however, could be achieved using ballistic models. The present study aimed to compare simulated and measured values of microsprinkler droplet diameters. Experimental measurements were made using the flour method, and simulations using a ballistic model adopted by the SIRIAS computational software. Drop diameters quantified in the experiment varied between 0.30 mm and 1.30 mm, while the simulated between 0.28 mm and 1.06 mm. The greatest differences between simulated and measured values were registered at the highest radial distance from the emitter. The model presented a performance classified as excellent for simulating microsprinkler drop distribution.

  12. Ballistic penetration of Perma-Gel

    Science.gov (United States)

    Ryckman, Raymond Albert; Powell, David Arthur; Lew, Adrian

    2012-03-01

    In this study a number of experiments were performed by taking high-speed footage of the firing spherical steel bullets at different speeds into Perma-Gel, a new synthetic thermoplastic material touted to exhibit similar properties to ordnance ballistic gelatin. We found that the gel undergoes very large and recoverable elastic deformations, which could strongly affect the dynamics of the temporary cavity formed behind the projectile. As with ordnance ballistic gelatin, the diameter of the temporary cavity can be many times the diameter of the projectile, in contrast with that of the permanent cavity which is several times smaller.We also observed that the closure of the cavity chokes the air inside, which could affect its dynamics in noticeable ways. Finally, one of the experiments suggest that the precise model of material failure may not be important to determine the dynamics of the temporary cavity.

  13. Reliability Simulation for a Missile Tank Under Random Loading

    Institute of Scientific and Technical Information of China (English)

    2001-01-01

    This paper presents a Monte-Carlo simulation method to calculate intensity relia- bility for a missile tank under random loading. The cumulative damage mathematical mod- el is established, and it adopts a direct simulation method to present random loading and o-riginal intensity for a missile tank. It can effectively predict intensity reliability for a missile tank in the environment of transport and flight.

  14. Modular Digital Missile Guidance, Phase I2

    Science.gov (United States)

    1976-01-28

    SA-CW Sensor) r52 ^.2.5.2 Class II Misslies (SA-PD Sensor) 15? ^•2.S.3 Class III Missiles (SA-PD Sensor) 153 <».2.5.<i Class III Max. Missiles ISA ...The najor functional elements of a semi-active CW doppler ISA -CM) sensor are shown in figure IS* The sensor is comprised of a rear receiver» front...and a reduction in system life cycle cost* Mu-sro r- -ISS» 1 UM3tLlCAL MUX. A RTU MtSZlll COHPUTML Bcia i f MJl-srö-SSi MU* 1 f i T’ Jl

  15. Using NASTRAN to model missile inertia loads

    Science.gov (United States)

    Marvin, R.; Porter, C.

    1985-01-01

    An important use of NASTRAN is in the area of structural loads analysis on weapon systems carried aboard aircraft. The program is used to predict bending moments and shears in missile bodies, when subjected to aircraft induced accelerations. The missile, launcher and aircraft wing are idealized, using rod and beam type elements for solution economy. Using the inertia relief capability of NASTRAN, the model is subjected to various acceleration combinations. It is found to be difficult to model the launcher sway braces and hooks which transmit compression only or tension only type forces respectively. A simple, iterative process was developed to overcome this modeling difficulty. A proposed code modification would help model compression or tension only contact type problems.

  16. On the Dynamic Stability of a Missile

    Directory of Open Access Journals (Sweden)

    K.C. Sharma

    1977-01-01

    Full Text Available The P-method given by Parks and Pritchard has been used to discuss the stability behaviour of a missile in free flight. General stability criteria for aerodynamic stabilisation have been obtained for slowly varying coefficients. The effect of pressure gradient on the stability of a coasting rocket has been explicitly examined. It is observed that the positive Magnus moment parameter ensures stability whereas a negative moment parameter would enhance the requirements of a larger stability margin.

  17. Thermo-Electron Ballistic Coolers or Heaters

    Science.gov (United States)

    Choi, Sang H.

    2003-01-01

    Electronic heat-transfer devices of a proposed type would exploit some of the quantum-wire-like, pseudo-superconducting properties of single-wall carbon nanotubes or, optionally, room-temperature-superconducting polymers (RTSPs). The devices are denoted thermo-electron ballistic (TEB) coolers or heaters because one of the properties that they exploit is the totally or nearly ballistic (dissipation or scattering free) transport of electrons. This property is observed in RTSPs and carbon nanotubes that are free of material and geometric defects, except under conditions in which oscillatory electron motions become coupled with vibrations of the nanotubes. Another relevant property is the high number density of electrons passing through carbon nanotubes -- sufficient to sustain electron current densities as large as 100 MA/square cm. The combination of ballistic motion and large current density should make it possible for TEB devices to operate at low applied potentials while pumping heat at rates several orders of magnitude greater than those of thermoelectric devices. It may also enable them to operate with efficiency close to the Carnot limit. In addition, the proposed TEB devices are expected to operate over a wider temperature range

  18. Targeting Low-Energy Ballistic Lunar Transfers

    Science.gov (United States)

    Parker, Jeffrey S.

    2010-01-01

    Numerous low-energy ballistic transfers exist between the Earth and Moon that require less fuel than conventional transfers, but require three or more months of transfer time. An entirely ballistic lunar transfer departs the Earth from a particular declination at some time in order to arrive at the Moon at a given time along a desirable approach. Maneuvers may be added to the trajectory in order to adjust the Earth departure to meet mission requirements. In this paper, we characterize the (Delta)V cost required to adjust a low-energy ballistic lunar transfer such that a spacecraft may depart the Earth at a desirable declination, e.g., 28.5(white bullet), on a designated date. This study identifies the optimal locations to place one or two maneuvers along a transfer to minimize the (Delta)V cost of the transfer. One practical application of this study is to characterize the launch period for a mission that aims to launch from a particular launch site, such as Cape Canaveral, Florida, and arrive at a particular orbit at the Moon on a given date using a three-month low-energy transfer.

  19. Intelligent Design and Implementation of Missile Fire Control System

    Institute of Scientific and Technical Information of China (English)

    XIE Chun-si; WANG Min-qing; LI Wei-hai; LIU Xi-zuo; JIN Liang-an

    2006-01-01

    Missile fire control system is the core of ship-based missile weapon system, whose safeguard levelhas direct relation with the attack ability of naval vessels. After a long period of deep investigation and research, it was found that, in one missile fire control system, there are such problems as single safeguard system, low ratio of cost to efficiency, etc. By adopting intelligent control techniques and many measures to multiple securities, the new type of assistant system is designed, some difficult problems are solved, such as fixed project channel and unitary means of missiles, which can make the equipment carry out combat mission reliably and continuously.

  20. Injuries of the head from backface deformation of ballistic protective helmets under ballistic impact.

    Science.gov (United States)

    Rafaels, Karin A; Cutcliffe, Hattie C; Salzar, Robert S; Davis, Martin; Boggess, Brian; Bush, Bryan; Harris, Robert; Rountree, Mark Steve; Sanderson, Ellory; Campman, Steven; Koch, Spencer; Dale Bass, Cameron R

    2015-01-01

    Modern ballistic helmets defeat penetrating bullets by energy transfer from the projectile to the helmet, producing helmet deformation. This deformation may cause severe injuries without completely perforating the helmet, termed "behind armor blunt trauma" (BABT). As helmets become lighter, the likelihood of larger helmet backface deformation under ballistic impact increases. To characterize the potential for BABT, seven postmortem human head/neck specimens wearing a ballistic protective helmet were exposed to nonperforating impact, using a 9 mm, full metal jacket, 124 grain bullet with velocities of 400-460 m/s. An increasing trend of injury severity was observed, ranging from simple linear fractures to combinations of linear and depressed fractures. Overall, the ability to identify skull fractures resulting from BABT can be used in forensic investigations. Our results demonstrate a high risk of skull fracture due to BABT and necessitate the prevention of BABT as a design factor in future generations of protective gear.

  1. Department of Defense In-House RDT&E Activities. Management Analysis Report

    Science.gov (United States)

    1987-10-30

    Chemical Defense . . ... . 36 Medical Research Institute of Infectious Diseases . . , . 37 Missile Research, Development & Engineering Center ... . 38...EOD, STATISTICAL, MAINT EVALUATION, AND HUMAN FACTORS CAPABILITIES AVAILABLE. COMPUTER SUPPORT AVAILABLE. TEMPERATURES TO -50 DEG. FAHR . COMMON. 19... DISEASE ; MAMMALIAN AND IN VITRO TOXICOLOGY; FORWARD AREA CASUALTY CARE. ...CURRENT IMPORTANT PROGRAMS DETERMINATION OF SAFE THRESHOLDS OF COHERENT

  2. Modeling and Simulation of Control Actuation System with Fuzzy-PID Logic Controlled Brushless Motor Drives for Missiles Glider Applications.

    Science.gov (United States)

    Muniraj, Murali; Arulmozhiyal, Ramaswamy

    2015-01-01

    A control actuation system has been used extensively in automotive, aerospace, and defense applications. The major challenges in modeling control actuation system are rise time, maximum peak to peak overshoot, and response to nonlinear system with percentage error. This paper addresses the challenges in modeling and real time implementation of control actuation system for missiles glider applications. As an alternative fuzzy-PID controller is proposed in BLDC motor drive followed by linkage mechanism to actuate fins in missiles and gliders. The proposed system will realize better rise time and less overshoot while operating in extreme nonlinear dynamic system conditions. A mathematical model of BLDC motor is derived in state space form. The complete control actuation system is modeled in MATLAB/Simulink environment and verified by performing simulation studies. A real time prototype of the control actuation is developed with dSPACE-1104 hardware controller and a detailed analysis is carried out to confirm the viability of the proposed system.

  3. Patriot/Medium Extended Air Defense System Combined Aggregate Program (Patriot/MEADS CAP)

    Science.gov (United States)

    2013-12-01

    FUE - First Unit Equipped IOT &E - Initial Operational Test and Evaluation Missile Milestones SAR Baseline Dev Est Current APB Development...Acquisition Management Information Retrieval Dev Est - Development Estimate DoD - Department of Defense DSN - Defense Switched Network Econ...Milestone c FUE IOT &E Start Complete Full Rate Production Deci... AcQuisition Increment 2 Milestone C Lightweight Launcher FUE IOT &E Start

  4. Aerodynamic performances of cruise missile flying above local terrain

    Science.gov (United States)

    Ahmad, A.; Saad, M. R.; Che Idris, A.; Rahman, M. R. A.; Sujipto, S.

    2016-10-01

    Cruise missile can be classified as a smart bomb and also Unmanned Aerial Vehicle (UAV) due to its ability to move and manoeuvre by itself without a pilot. Cruise missile flies in constant velocity in cruising stage. Malaysia is one of the consumers of cruise missiles that are imported from other nations, which can have distinct geographic factors including their local terrains compared to Malaysia. Some of the aerodynamic performances of missile such as drag and lift coefficients can be affected by the local geographic conditions in Malaysia, which is different from the origin nation. Therefore, a detailed study must be done to get aerodynamic performance of cruise missiles that operate in Malaysia. The effect of aerodynamic angles such as angle of attack and side slip can be used to investigate the aerodynamic performances of cruise missile. Hence, subsonic wind tunnel testings were conducted to obtain the aerodynamic performances of the missile at various angle of attack and sideslip angles. Smoke visualization was also performed to visualize the behaviour of flow separation. The optimum angle of attack found was at α=21° and side slip, β=10° for optimum pitching and yawing motion of cruise missile.

  5. Introduction of Women into Titan II Missile Operations.

    Science.gov (United States)

    1981-03-01

    areas (weapons system orientation: mnaintenance management. electronics principles , and technical publications. facility systems and missile Sfstents...Management. Electronics Principles . Technical Publications 97.00 2.63 94.04 5.27 2.31 Facility Systems 92.25 4.61 93.2) 5.80 -.62 Missile Systems 96.67 2.90

  6. 22 CFR 121.16 - Missile Technology Control Regime Annex.

    Science.gov (United States)

    2010-04-01

    ... 22 Foreign Relations 1 2010-04-01 2010-04-01 false Missile Technology Control Regime Annex. 121.16 Section 121.16 Foreign Relations DEPARTMENT OF STATE INTERNATIONAL TRAFFIC IN ARMS REGULATIONS THE UNITED... missile systems, see § 121.1, Cat. VIII (a), target drones and reconnaissance drones (see § 121.1,...

  7. Development and testing of a flexible ballistic neck protection

    NARCIS (Netherlands)

    Roebroeks, G.H.J.J.; Rensink, P.

    2016-01-01

    Sufficient ballistic protection of the neck area would significantly reduce the vulnerability of an infantry soldier. So far this protection is offered by extensions on the ballistic vest or combat helmet. However, the requirements for head agility and the various body to head positions combined wit

  8. Ballistic performance and microstructure of four armor ceramics

    NARCIS (Netherlands)

    Abadjieva, E.; Carton, E.P.

    2013-01-01

    The ballistic behavior of four different armor ceramic materials with thicknesses varying from 3 mm to 14 mm has been investigated. These are two types of alumina Al2O3 armor grades and two types of SiC armor grades produced by different armor ceramic producers. The ballistic study has been performe

  9. Towards reliable simulations of ballistic impact on concrete structures

    NARCIS (Netherlands)

    Khoe, Y.S.; Tyler Street, M.D.; Maravalalu Suresh,, R.S.; Weerheijm, J.

    2013-01-01

    Protection against weapon effects like ballistic impacts, fragmenting shells and explosions is the core business of the Explosions, Ballistics and Protection department of TNO (The Netherlands). Experimental and numerical research is performed to gain and maintain the knowledge to support the Dutch

  10. Ballistic Characterization of the Scalability of Magnesium Alloy AMX602

    Science.gov (United States)

    2015-07-01

    Magnesium Alloy AMX602 by Tyrone L Jones Weapons and Materials Research Directorate, ARL Katsuyoshi Kondoh Joining and Welding Research...formed a collaborative partnership with Osaka University Joining and Welding Research Institute (JWRI), Taber Extrusions, Epson Atmix, Pacific Sowa...Powder Metallurgy 4 5. Fabrication Procedure 4 6. Mechanical Property Analysis 5 7. Ballistic Experimental Procedures 6 8. Ballistic Experimental

  11. The reference ballistic imaging database revisited.

    Science.gov (United States)

    De Ceuster, Jan; Dujardin, Sylvain

    2015-03-01

    A reference ballistic image database (RBID) contains images of cartridge cases fired in firearms that are in circulation: a ballistic fingerprint database. The performance of an RBID was investigated a decade ago by De Kinder et al. using IBIS(®) Heritage™ technology. The results of that study were published in this journal, issue 214. Since then, technologies have evolved quite significantly and novel apparatus have become available on the market. The current research article investigates the efficiency of another automated ballistic imaging system, Evofinder(®) using the same database as used by De Kinder et al. The results demonstrate a significant increase in correlation efficiency: 38% of all matches were on first position of the Evofinder correlation list in comparison to IBIS(®) Heritage™ where only 19% were on the first position. Average correlation times are comparable to the IBIS(®) Heritage™ system. While Evofinder(®) demonstrates specific improvement for mutually correlating different ammunition brands, ammunition dependence of the markings is still strongly influencing the correlation result because the markings may vary considerably. As a consequence a great deal of potential hits (36%) was still far down in the correlation lists (positions 31 and lower). The large database was used to examine the probability of finding a match as a function of correlation list verification. As an example, the RBID study on Evofinder(®) demonstrates that to find at least 90% of all potential matches, at least 43% of the items in the database need to be compared on screen and this for breech face markings and firing pin impression separately. These results, although a clear improvement to the original RBID study, indicate that the implementation of such a database should still not be considered nowadays.

  12. Going ballistic: Graphene hot electron transistors

    Science.gov (United States)

    Vaziri, S.; Smith, A. D.; Östling, M.; Lupina, G.; Dabrowski, J.; Lippert, G.; Mehr, W.; Driussi, F.; Venica, S.; Di Lecce, V.; Gnudi, A.; König, M.; Ruhl, G.; Belete, M.; Lemme, M. C.

    2015-12-01

    This paper reviews the experimental and theoretical state of the art in ballistic hot electron transistors that utilize two-dimensional base contacts made from graphene, i.e. graphene base transistors (GBTs). Early performance predictions that indicated potential for THz operation still hold true today, even with improved models that take non-idealities into account. Experimental results clearly demonstrate the basic functionality, with on/off current switching over several orders of magnitude, but further developments are required to exploit the full potential of the GBT device family. In particular, interfaces between graphene and semiconductors or dielectrics are far from perfect and thus limit experimental device integrity, reliability and performance.

  13. More Inaccurate Specifications of Ballistic Coefficients

    Science.gov (United States)

    2012-01-02

    The rifles used in the study were all Remington 700s with factory barrels. The 223 Remington , 308 Winchester, and 30-06 were all ADLs with...Berger 62 grain flat base varmint bullet. This bullet demonstrates excellent accuracy (0.5 MOA) in the Remington 700 test rifle out to 300 yards and...factor. The earlier paper (Courtney and Courtney 2009) reported a BC of 0.308 +/- 0.010 for the 125 grain Nosler Ballistic Tip from the Remington

  14. Dynamic conductance of a ballistic quantum wire

    Energy Technology Data Exchange (ETDEWEB)

    Quan Jun [School of Physics Science and Technology, Zhanjiang Normal University, Zhanjiang 524048 (China); Tian Ying [Center of Liberal Education, Zhanjiang Normal University, Zhanjiang 524048 (China); Zhang, Jun, E-mail: ntu_submit@yahoo.c [School of Physics Science and Technology, Zhanjiang Normal University, Zhanjiang 524048 (China); Shenzhen Institute of Advanced Integration Technology, Shenzhen 518055 (China); Shao Lexi [School of Physics Science and Technology, Zhanjiang Normal University, Zhanjiang 524048 (China)

    2011-04-01

    Within the framework of exact linear response theory, we derive a general formula, with which the dynamic conductance of mesoscopic system can be determined in the absence of Coulomb interaction. In addition, we present a solution to the problem of current partition in the system. These allow the derivation of dynamic conductance in time-dependent case. As a natural consequence, the current (charge) conservation and gauge invariance conditions are fulfilled. To give an example, we discuss the dynamic conductance of a ballistic quantum wire, and the effect of contacts on the conductance is also discussed.

  15. Software system requirements for the Army Tactical Missile System (ATACMS) End-To-End System using the Computer Aided Prototyping System (CAPS) multi-file approach

    OpenAIRE

    Angrisani, David Stuart; Whitbeck, George Steven.

    1996-01-01

    The Department of Defense (DOD) is seeking software system requirements for the Army Tactical Missile System (ATACMS) End to End System, which comprises both ATACMS and all sensors, links, and command centers which enable integration across system and service boundaries. The complexity, multiple interfaces, and joint nature of planned ATACMS operations demands accurate specification of software system requirements. DOD also desires automated tools capable of developing rapid prototypes to ass...

  16. Feasibility of ballistic strengthening exercises in neurologic rehabilitation.

    Science.gov (United States)

    Williams, Gavin; Clark, Ross A; Hansson, Jessica; Paterson, Kade

    2014-09-01

    Conventional methods for strength training in neurologic rehabilitation are not task specific for walking. Ballistic strength training was developed to improve the functional transfer of strength training; however, no research has investigated this in neurologic populations. The aim of this pilot study was to evaluate the feasibility of applying ballistic principles to conventional leg strengthening exercises in individuals with mobility limitations as a result of neurologic injuries. Eleven individuals with neurologic injuries completed seated and reclined leg press using conventional and ballistic techniques. A 2 × 2 repeated-measures analysis of variance was used to compare power measures (peak movement height and peak velocity) between exercises and conditions. Peak jump velocity and peak jump height were greater when using the ballistic jump technique rather than the conventional concentric technique (P exercises, the incorporation of ballistic principles was associated with increased peak height and peak velocities.

  17. Internal Ballistic Code for Solid Rocket Motors using Minimum Distance Function for Grain Burnback

    Directory of Open Access Journals (Sweden)

    Afroz Javed

    2015-05-01

    Full Text Available A computer code has been developed for internal ballistic performance evaluation of solid rocket motors, using minimum distance function (MDF approach for prediction of geometry evolution. This method can handle any complex geometry without the need to define different geometrical shapes and their evolution as used in several existing analytical geometry evolution-based methodologies. The code is validated with both experimental results published in literature, as well as for solid rocket motors of tactical and strategic missiles and a very good match is obtained with static test results. The output of the code gives p-t (pressure-time curve as well as the detailed parameters of the flow along the axial direction, and geometries in the form of mesh file, which can be further used as input to codes for CFD analysis.Defence Science Journal, Vol. 65, No. 3, May 2015, pp.181-188, DOI: http://dx.doi.org/10.14429/dsj.65.8304

  18. Gauging the Influence of Technology on Tactical Missiles of the Future(Short Communication

    Directory of Open Access Journals (Sweden)

    Mark L. Bundy

    2002-01-01

    Full Text Available Tactical missiles, carrying kinetic energy, high explosives, or multiple submunitions are an integral part of the current and future US Army weapons inventory. Naturally, the number of missiles that can be stowed on any mobile launch platform depends on the size of the missile. Advances in rocket propulsion efficiency and improvements in guidance systems may make it possible to reduce missile size without a proportionate decrease in effectiveness. A primitive I-DOF computer model is used here to show how advances in missile technology might allow smaller missiles in the future to carry out the mission of today's larger missiles. A scaled-down version of a typical current generation missile is taken as the next generation missile. Hypothetical improvements in this smaller missile are then chosen in four basic areas-propellant impulse, burn time, weight fraction, and aerodynamic drag.-with the effects on lethality reported in a nondimensional format.

  19. Short report of an unusual ballistic trauma

    Science.gov (United States)

    Inchingolo, Francesco; Tatullo, Marco; Marrelli, Massimo; Inchingolo, Alessio D.; Pinto, Giorgia; Inchingolo, Angelo M.; Dipalma, Gianna

    2011-01-01

    INTRODUCTION Portable firearms have a relevant medico-legal interest, being a major cause of injury. Bullet entry wounds generally have a particular appearance, including contusion, skin introflection, and simple or excoriated ecchymosis. The skin wound is typically a hole with frayed margins, whose diameter is smaller than that of the bullet. PRESENTATION OF CASE We report the case of a 19-year-old man with ballistic trauma. Examination of the patient's lesions indicated that the bullet had entered from the left mandibular parasymphysis, creating a small hole without the typical bullet wipe and blackening. Subsequently, the bullet seemed to have fractured the left chin region immediately below the lower alveolar process, and it finally stopped in the submandibular area in the suprahyoid region of the neck. DISCUSSION This case is peculiar because the distinctive features of a firearm injury were absent; the lack of bleeding and edema made the case difficult to interpret without additional diagnostic investigations. CONCLUSION Ballistic trauma can manifest in different ways; therefore, internal trauma should be suspected even in the absence of clear external signs. This case report shows how an unusual bullet entry hole can mask quite serious injuries. PMID:22096751

  20. The Dynamic Behaviour of Ballistic Gelatin

    Science.gov (United States)

    Shepherd, C. J.; Appleby-Thomas, G. J.; Hazell, P. J.; Allsop, D. F.

    2009-12-01

    In order to characterise the effect of projectiles it is necessary to understand the mechanism of both penetration and resultant wounding in biological systems. Porcine gelatin is commonly used as a tissue simulant in ballistic tests because it elastically deforms in a similar manner to muscular tissue. Bullet impacts typically occur in the 350-850 m/s range; thus knowledge of the high strain-rate dynamic properties of both the projectile and target materials are desirable to simulate wounds. Unlike projectile materials, relatively little data exists on the dynamic response of flesh simulants. The Hugoniot for a 20 wt.% porcine gelatin, which exhibits a ballistic response similar to that of human tissues at room temperature, was determined using the plate-impact technique at impact velocities of 75-860 m/s. This resulted in impact stresses around three times higher than investigated elsewhere. In US-uP space the Hugoniot had the form US = 1.57+1.77 uP, while in P-uP space it was essentially hydrodynamic. In both cases this was in good agreement with the limited available data from the literature.

  1. Advanced geometries for ballistic neutron guides

    Science.gov (United States)

    Schanzer, Christian; Böni, Peter; Filges, Uwe; Hils, Thomas

    2004-08-01

    Sophisticated neutron guide systems take advantage of supermirrors being used to increase the neutron flux. However, the finite reflectivity of supermirrors becomes a major loss mechanism when many reflections occur, e.g. in long neutron guides and for long wavelengths. In order to reduce the number of reflections, ballistic neutron guides have been proposed. Usually linear tapered sections are used to enlarge the cross-section and finally, focus the beam to the sample. The disadvantages of linear tapering are (i) an inhomogeneous phase space at the sample position and (ii) a decreasing flux with increasing distance from the exit of the guide. We investigate the properties of parabolic and elliptic tapering for ballistic neutron guides, using the Monte Carlo program McStas with a new guide component dedicated for such geometries. We show that the maximum flux can indeed be shifted away from the exit of the guide. In addition we explore the possibilities of parabolic and elliptic geometries to create point like sources for dedicated experimental demands.

  2. Advanced geometries for ballistic neutron guides

    Energy Technology Data Exchange (ETDEWEB)

    Schanzer, Christian E-mail: christian.schanzer@frm2.tum.de; Boeni, Peter; Filges, Uwe; Hils, Thomas

    2004-08-21

    Sophisticated neutron guide systems take advantage of supermirrors being used to increase the neutron flux. However, the finite reflectivity of supermirrors becomes a major loss mechanism when many reflections occur, e.g. in long neutron guides and for long wavelengths. In order to reduce the number of reflections, ballistic neutron guides have been proposed. Usually linear tapered sections are used to enlarge the cross-section and finally, focus the beam to the sample. The disadvantages of linear tapering are (i) an inhomogeneous phase space at the sample position and (ii) a decreasing flux with increasing distance from the exit of the guide. We investigate the properties of parabolic and elliptic tapering for ballistic neutron guides, using the Monte Carlo program McStas with a new guide component dedicated for such geometries. We show that the maximum flux can indeed be shifted away from the exit of the guide. In addition we explore the possibilities of parabolic and elliptic geometries to create point like sources for dedicated experimental demands.

  3. Field mapping of ballistic pressure pulse sources

    Directory of Open Access Journals (Sweden)

    Rad Abtin Jamshidi

    2015-09-01

    Full Text Available Ballistic pressure pulse sources are used since late 1990s for the extracorporeal treatment of chronic Enthesitis. Newly indications are found in trigger-point-therapy for the treatment of musculoskeletal disorders. In both applications excellent results without relevant side effects were found in clinical trials. The technical principle of pressure pulse source is based on the same techniques used in air guns. A projectile is accelerated by pressurized air and hits the applicator with high kinetic energy. By this a compression wave travels through the material and induces a fast (4..5μs, almost singular pressure pulse of 2..10 MPa, which is followed by an equally short rarefaction phase of about the same amplitude. It is assumed that the pressure pulse accounts for the biomedical effects of the device. The slower inertial motion of the waveguide is damped by elastic stoppers, but still can be measured several micro seconds after the initial pressure pulse. In order to characterize the pressure pulse devices, field mapping is performed on several radial pressure pulse sources using the fiber optic hydrophone and a polyvinylidenfluorid (PVDF piezoelectric hydrophone. It could be shown that the current standard (IEC 61846 is not appropriate for characterization of ballistic pressure pulse sources.

  4. Missile Studies with a Biological Target

    Science.gov (United States)

    1961-01-23

    Biology and Medicine of the U. S. Atomic Energy Commission and to the Office of Civil Defense and Mobilization (formerly the Federal Civil Defense...None Ear. left, laceration severed a peripheral blood vessel. 4P3A 4 1 Shoulder, left, 14 mm deep to scapular spine with small "nick" fracture

  5. Recent Advances in Antitank Guided Missile Systems

    Directory of Open Access Journals (Sweden)

    N. R. Iyer

    1995-07-01

    Full Text Available The recent advances in tactical antitank guided missile (ATGM systems are discussed. The main driving factors for the technological advances towards realisation of third generation ATGM systems have been the more demanding operational needs of the user services and limitations of earlier generation ATGM systems. The tasks of system design, hardware realisation, integration, testing and qualification have become extremely challenging to meet these stringent operational requirements. The technologies required to be mobilised for meeting these operational requirements and performance envelope and satisfying the operational and logistics constraints are again very demanding. The high technology content and the high level of performance required out of the subsystems have led to the present generation missile systems. The evolution from the earlier generations to current systems has been briefly discussed. Imaging infrared (IIR and Millimetre wave (MMW guidance systems employed for achieving the fire and forget capability of the third generation ATGM are described with specific reference to progress achieved so far. Translating the mission requirements to preliminary system specifications is another area wherein an innovative approach only can lead to meet the multiple performance criteria. Performance growth profile and emerging trends in ATGM systems are also analysed.

  6. CT analysis of missile head injury

    Energy Technology Data Exchange (ETDEWEB)

    Besenski, N. [Dept. of Radiology, Zagreb Univ. Hospital Rebro (Croatia); Jadro-Santel, D. [Dept. of Neuropathology, Zagreb Univ. Hospital Rebro (Croatia); Jelavic-Koic, F. [Dept. of Radiology, General Hospital Sveti Duh, Zagreb (Croatia); Pavic, D. [Dept. of Neuropathology, Zagreb Univ. Hospital Rebro (Croatia); Mikulic, D. [Zagreb School of Medicine (Croatia); Glavina, K. [Dept. of Radiology, Clinical Hospital, Osijek (Croatia); Maskovic, J. [Dept. of Radiology, Clinical Hospital, Split (Croatia)

    1995-04-01

    Between August 1991 and December 1992, CT was performed in 154 patients who had suffered missile head injury during the war in the Republic of Croatia. In 54% CT was performed 1-24 h after injury, and in 27% follow-up CT was also obtained. The wounds were penetrating, tangential or perforating (45%, 34% and 21%, respectively). Haemorrhage was the most frequent lesion in the brain (84%). Follow-up CT evolution of haemorrhage, oedema, cerebritis, abscess, secondary vascular lesions, necrosis, encephalomalacia and hydrocephalus. The most dynamic changes occurred 7-14 days after injury. In 14% of cases, deep cerebral lesions were found in the corpus callosum, septum pellucidum periventricular region and pons, although bone and shell fragments were in a different part of the brain parenchyma. Such lesions were found in penetrating injuries only. CT proved very useful for assessing the extent and type of lesions. Although different mechanisms of brain damage in missile head injury are known, here they are, to the best of our knowledge, shown for the first time by CT. (orig.)

  7. Innovation in Aerodynamic Design Features of Soviet Missiles

    Science.gov (United States)

    Spearman, M. Leroy

    2006-01-01

    Wind tunnel investigations of some tactical and strategic missile systems developed by the former Soviet Union have been included in the basic missile research programs of the NACA/NASA. Studies of the Soviet missiles sometimes revealed innovative design features that resulted in unusual or unexpected aerodynamic characteristics. In some cases these characteristics have been such that the measured performance of the missile exceeds what might have been predicted. In other cases some unusual design features have been found that would alleviate what might otherwise have been a serious aerodynamic problem. In some designs, what has appeared to be a lack of refinement has proven to be a matter of expediency. It is a purpose of this paper to describe some examples of unusual design features of some Soviet missiles and to illustrate the effectiveness of the design features on the aerodynamic behavior of the missile. The paper draws on the experience of the author who for over 60 years was involved in the aerodynamic wind tunnel testing of aircraft and missiles with the NACA/NASA.

  8. TOW Missile Pallet MIL-STD-1660 Tests

    Science.gov (United States)

    1993-08-01

    0 DTICS ELECTE FEB 2 19941 FINAL REPORT C U ow AUGUST 1993 (V V Lfl3 NNE REPORT NO. 93-23 TOW MISSILE PALLET MIL- STD -1660 TESTS Prepared for...TITLE gOnakde Secwir Casaftedon) TOW Missile Pallet MIL- STD -1660 Tests 12. PERSONAL AUTHOR(S) Jason B. Solberg 13s. TYPE OF REPORT 13b. TIME COVERED...and Engineering Center (ARDEC) to test the TOW missile pallet. This report contains the procedures, results, and recommendations from the MIL- STD

  9. Missile antenna pattern coordinate system and data formats

    Science.gov (United States)

    1993-08-01

    Antenna performance data pertains to missile, space, and aerodynamic vehicles' transmitting or receiving antennas used with range data collection, missile trajectory measurements, impact predictions, communications, or flight termination systems. As used in this document, the terms missile space vehicle, airborne, and aerodynamic vehicle are synonymous. This standard is intended to cover antennas for telemetry, pulsed radar beacons, continuous wave (CW) transponders, communication transmitters and receivers, command control/flight termination, receivers/decoders, pseudo random noise (PRN) ranging systems, and the Global Positioning System.

  10. Strapdown inertial systems applications for tactical missiles (stand-off missiles)

    Science.gov (United States)

    Puech

    1986-06-01

    Strapdown Inertial Systems (SDIS) are particularly well suited for tactical standoff missile applications. This certainty was made clear by several years of theoretical design work and trials. Initial theoretical work made wide use of parameters giving detailed definition of missile trajectories and motions as obtained from measurements made on weapon systems then in development or production. Sensors (principally gyroscopes) were laboratory tested. These preliminary design efforts led to selection of various technologies such as the laser gyro and the mechanical gyro, each being adapted to the weapon system in question. Share-out of functions between various equipment items was defined. Comparison of the advantages and disadvantages of these technologies shows that today the laser gyro is principally retained for high and medium range levels of precision, with the mechanical (spin-stabilized) gyro serving in the medium and low precision range. Since requirements are ever increasing in the fields of dynamic performance and robustness, it is here that most progress is expected.

  11. Defense Research Enterprise Assessment

    Science.gov (United States)

    2017-01-01

    MEMORANDUM FOR: SEE DISTRIBUTION SUBJECT: Final Report of the Defense Science Board Task Force on Defense Research Enterprise Assessment The...attached report contains the findings and recommendations of the Defense Science Board (DSB) Study on Defense Research Enterprise Assessment. The 2015...National Defense Authorization Act directed the Secretary of Defense to task the DSB to conduct an assessment of the organization, missions, authorities

  12. Effect of Clamping Rigidity of the Armour on Ballistic Performance

    Directory of Open Access Journals (Sweden)

    S. N. Dikshit

    1992-04-01

    Full Text Available Influence of the manner in which the armour plates are held during their ballistic testing on the armour performance, has been evaluated. One armour plate was clamped rigidly to the test stand while a second plate of identical composition, hardness, and dimensions was hung loosely from the target holder. Both these plates were impacted with the same type of projectiles and over the same impact velocity range. The nature of ballistic damage evaluated indicates that the manner in which the armour is held during ballistic testing has a negligible influence on its performance at least when the mass of the plate is substantially higher than that of the projectile.

  13. Study on Titanium Alloy TC4 Ballistic Penetration Resistance Part Ⅰ: Ballistic Impact Tests

    Institute of Scientific and Technical Information of China (English)

    ZHANG Tao; CHEN Wei; GUAN Yupu; GAO Deping

    2012-01-01

    Ballistic impact test of different-scale casings is an efficient way to demonstrate the casing containment capability at the preliminary design stage of the engine.For the sake of studying the titanium alloy TC4 casing performance,the ballistic tests of flat and curved simulation casing are implemented by using two flat blades of different sizes as the projectile.The impact mechanism and failure of the target are discussed.Impact of the projectile is a highly nonlinear transient process with the large deformation of the target.On the impact,failures of the flat casing and the subscale casing are similar,concluding two parts,the global dishing and localized ductile tearing.The main localized failure mode combines plugging (shear) and petaling (shear) if the projectile perforates or penetrates,while crater (shear) if the projectile rebounds.The ballistic limit equation is verified by the test data and the results show that this empirical equation could be a practical way to estimate the critical velocity.

  14. Trade-off Study for the Hit-to-kill Interception of Ballistic Missiles in the Boost Phase

    Science.gov (United States)

    2009-12-01

    8217nearest’,’ extrap ’); %interpolate the Cd data in the array for the new Mach number CL_curve = interp1(CL_data(:,1),CL_data(:,2:11),M,’nearest...8217,’ extrap ’); %interpolate the CL data in the array for the new Mach number p = polyfit(CL_curve,Cd_curve,2); % generate a new drag polar (CL_Cd

  15. North Korea’s Military Threat: Pyongyang’s Conventional Forces, Weapons of Mass Destruction, and Ballistic Missiles

    Science.gov (United States)

    2007-04-01

    eternalize their rule. They have a large stockpile and we are to be forbidden even to think about the manufacture of nuclear weapons.321 Any modest...Chinhae.” Additionally, in light with South Korea’s Sunshine Policy (overtures that past ROK President Kim Dae Jung made to North Korea), officially

  16. Ballistic energy transport in PEG oligomers

    Directory of Open Access Journals (Sweden)

    Kireev Victor V.

    2013-03-01

    Full Text Available Energy transport between the terminal groups of the azido-PEG-succinimide ester compounds with a number of repeating PEG units of 0, 4, 8, and 12 was studied using relaxation-assisted two-dimensional infrared spectroscopy. The through-bond energy transport time, evaluated as the waiting time at which the cross peak maximum is reached, Tmax, was found to be linearly dependent on the chain length for chain lengths up to 60 Å suggesting a ballistic energy transport regime. The through-bond energy transport speed is found to be ca. 500 m/s. The cross-peak amplitude at the maximum decays exponentially with the chain length with a characteristic decay distance of 15.7 ± 1 Å. Substantial mode delocalization across the PEG bridge is found, which can support the energy propagation as a wavepacket.

  17. Real-world ballistics: A dropped bucket

    CERN Document Server

    Hogg, David W

    2007-01-01

    I discuss an apparently simple ballistics problem: the time it takes an object to fall a small vertical distance near the surface of the Earth. It turns out to be not so simple; I spend a great deal of time on the quantitative assessment of the assumptions involved, especially with regards to the influence of the air. The point is \\emph{not} to solve the problem; indeed I don't even end up solving the problem exactly. I introduce dimensional analysis to perform all of the calculations approximately. The principal theme of the lecture is that \\emph{real} physics can be very different from ``textbook'' physics, since in the real world you aren't ever told what equations are appropriate, or why.

  18. Gate tuneable beamsplitter in ballistic graphene

    Energy Technology Data Exchange (ETDEWEB)

    Rickhaus, Peter; Makk, Péter, E-mail: Peter.Makk@unibas.ch; Schönenberger, Christian [Department of Physics, University of Basel, Klingelbergstrasse 82, CH-4056 Basel (Switzerland); Liu, Ming-Hao; Richter, Klaus [Institut für Theoretische Physik, Universität Regensburg, D-93040 Regensburg (Germany)

    2015-12-21

    We present a beam splitter in a suspended, ballistic, multiterminal, bilayer graphene device. By using local bottomgates, a p-n interface tilted with respect to the current direction can be formed. We show that the p-n interface acts as a semi-transparent mirror in the bipolar regime and that the reflectance and transmittance of the p-n interface can be tuned by the gate voltages. Moreover, by studying the conductance features appearing in magnetic field, we demonstrate that the position of the p-n interface can be moved by 1 μm. The herein presented beamsplitter device can form the basis of electron-optic interferometers in graphene.

  19. Ballistic miniband conduction in a graphene superlattice

    Science.gov (United States)

    Lee, Menyoung; Wallbank, John R.; Gallagher, Patrick; Watanabe, Kenji; Taniguchi, Takashi; Fal'ko, Vladimir I.; Goldhaber-Gordon, David

    2016-09-01

    Rational design of long-period artificial lattices yields effects unavailable in simple solids. The moiré pattern in highly aligned graphene/hexagonal boron nitride (h-BN) heterostructures is a lateral superlattice with high electron mobility and an unusual electronic dispersion whose miniband edges and saddle points can be reached by electrostatic gating. We investigated the dynamics of electrons in moiré minibands by measuring ballistic transport between adjacent local contacts in a magnetic field, known as the transverse electron focusing effect. At low temperatures, we observed caustics of skipping orbits extending over hundreds of superlattice periods, reversals of the cyclotron revolution for successive minibands, and breakdown of cyclotron motion near van Hove singularities. At high temperatures, electron-electron collisions suppress focusing. Probing such miniband conduction properties is a necessity for engineering novel transport behaviors in superlattice devices.

  20. Ballistics firearm identification by digital holography

    Institute of Scientific and Technical Information of China (English)

    LI Dong-guang

    2009-01-01

    The need for firearm identification systems by police services continues to increase with greater accessibility to weapons in the national and international contexts. The difficulties associated with traditional imaging of ballistics specimens are numerous, and include the smallness of the samples, the nature of the surfaces and shapes for the cartridge cases and projectiles. The digital holography has been introduced to create the 3D image of the fired bullets in order to identify firearms. In digital holography a CCD camera records optically generated holograms which is then reconstructed numerically by a calculation of scalar diffraction in the Fresnel approximation. The digital photography facilitates real time transmission of the message via traditional communication methods. In this paper the principle of digital holography and its application to the 3D image encryption-decryption were reviewed. The experimental results of firearm identification recording using digital holography and their numerical reconstruction were presented.

  1. Dynamic Simulation for Missile Erection System

    Institute of Scientific and Technical Information of China (English)

    2007-01-01

    In order to study the dynamic characteristics of the missile erection system, it can be considered as a rigid-flexible coupling multi-body system. Firstly, the actual system is abstracted as an equal and simplified one and then the forces applied to it are analyzed. Secondly, the rigid-flexible coupling dynamic simulation for erection system is accomplished by use of the system simulation software, for example Pro/E, ADAMS, ANSYS, MATLAB/Simulink, etc. Finally, having the aid of simulation results, the kinetic and dynamic characteristics of the flexible bodies in erection system are analyzed.The simulation considering the erection system as a rigid-flexible coupling system can provide valuable results to the research of its kinetic, dynamic and vibrational characteristics.

  2. Vortex development on slender missiles at supersonic speeds

    Science.gov (United States)

    Allen, J. M.; Dillenius, M. F. E.

    1979-01-01

    A theoretical and experimental effort has been made to develop a vortex-prediction capability on circular and noncircular missiles at supersonic speeds. Predicted vortex patterns are computed by two linear-theory computer codes. One calculates the strengths and initial locations of the vortices, and the other calculates their trajectories. A short color motion picture has been produced from the calculations to illustrate the predicted vortex patterns on a typical missile. Experimental vapor-screen photographs are presented to show the longitudinal development of the vortices on a fin-control missile. Comparisons are made between these data and the predicted vortices to assess the accuracy of the theory. The theory appears to be fairly accurate in predicting the number, locations, and relative strengths of individual vortices which develop over the missile, but cannot predict vortex sheets or diffuse vorticity whenever they occur.

  3. Analysis of Nonlinear Missile Guidance Systems Through Linear Adjoint Method

    Directory of Open Access Journals (Sweden)

    Khaled Gamal Eltohamy

    2015-12-01

    Full Text Available In this paper, a linear simulation algorithm, the adjoint method, is modified and employed as an efficient tool for analyzing the contributions of system parameters to the miss - distance of a nonlinear time-varying missile guidance system model. As an example for the application of the linear adjoint method, the effect of missile flight time on the miss - distance is studied. Since the missile model is highly nonlinear and a time-varying linearized model is required to apply the adjoint method, a new technique that utilizes the time-reversed linearized coefficients of the missile as a replacement for the time-varying describing functions is applied and proven to be successful. It is found that, when compared with Monte Carlo generated results, simulation results of this linear adjoint technique provide acceptable accuracy and can be produced with much less effort.

  4. Passive Acoustic Radar for Detecting Supersonic Cruise Missile

    Institute of Scientific and Technical Information of China (English)

    XIAO Feng; XIAO Hui

    2005-01-01

    A Passive Acoustic Radar is presented as a necessary complement to electromagnetic wave radar, which will be expected to be an effective means for detecting cruise missiles. Acoustic characteristics of supersonic flying projectiles with diverse shapes are expounded via experiment. It is pointed out that simulation experiment could be implemented using bullet or shell instead of cruise missile. Based on theoretical analysis and experiment, the "acoustic fingerprint" character of cruise missile is illustrated to identify it in a strong noise environment. After establishing a locating mathematical model,the technique of acoustic embattling is utilized to resolve a problem of confirming the time of early-warning, considering the fact that velocity of sound is much slower than that of light. Thereby, a whole system of passive acoustic radar for detecting supersonic cruise missile is formed.

  5. The Study of Tactical Missile's Airframe Digital Optimization Design

    Institute of Scientific and Technical Information of China (English)

    LUO Zhiqing; QIAN Airong; LI Xuefeng; GAO Lin; LEI Jian

    2006-01-01

    Digital design and optimal are very important in modern design. The traditional design methods and procedure are not fit for the modern missile weapons research and development. Digital design methods and optimal ideas were employed to deal with this problem. The disadvantages of the traditional missile's airframe design procedure and the advantages of the digital design methods were discussed. A new concept of design process reengineering (DPR) was put forward. An integrated missile airframe digital design platform and the digital design procedure, which integrated the optimization ideas and methods, were developed. Case study showed that the design platform and the design procedure could improve the efficiency and quality of missile's airframe design, and get the more reasonable and optimal results.

  6. Analysis and improvement of missile three-loop autopilots

    Institute of Scientific and Technical Information of China (English)

    Lin Defu; Fan Junfang; Qi Zaikang; Mou Yu

    2009-01-01

    characteristics from a two-loop autopilot with PI compensator.Both the two-loop and three-loop topologies can stabilize a static unstable missile.However,the finite actuator resource is the crucial factor dominating autopilot function.

  7. The Joint Cruise Missiles Project: An Acquisition History

    Science.gov (United States)

    1982-08-01

    cruise missile TAAM Tomahawk Airfield Attack Missile TATE Tooling and test equipment TCAE Teledyne Corporation, Continental Aircraft Engine Division...Corporation (WIC)2 and Teledyne Corporation, Continental Aircraft Engine Division ( TCAE ) for an eight-month competitive turbofan engine development program...with Williams declared the winner in April 1973. Similarly, in 1971 TCAE had won a competitive contract to develop a lightweight, low cost, expendable

  8. The Joint Cruise Missiles Project: An Acquisition History--Appendixes

    Science.gov (United States)

    1982-08-01

    missile TASM Tomahawk anti-ship missile TATE Tooling and test equipment TCAE Teledyne Corporation, Continental Aircraft Engine Division TDP Technical...development included Teledyne CAE ( TCAE ) (with a proposal based upon their F106 engine, which had earler lost to the WIC F107), Garrett Corporation (with a...WIC--Garrett, TCAE , Detroit Diesel Allison, Pratt & Whitney, Suns’rand, and Solar. WIC’s initial choice was a company that at the time had no

  9. Application of Computer Graphics to Performance Studies of Missile Warheads

    Directory of Open Access Journals (Sweden)

    K. Rama Rao

    1991-01-01

    Full Text Available Intercept geometry of target aircraft and missiles play an important role in determining the effectiveness of the warhead. Factors such as fragment spatial distribution profile, damage capabilities, target and missile characteristics have been considered and visualised through computer graphics and optimum intercept intercept angles have been arrived. Computer graphics has proved to be an important tool to enhance perception and conceptual design capabilities in the design environment.

  10. The ballistic Mars hopper: An alternative Mars mobility concept

    OpenAIRE

    1987-01-01

    The ballistic Mars hopper is proposed as an alternative mobility concept for unmanned exploration of the martian surface. In the ballistic Mars hopper concept, oxygen and carbon monoxide produced from the martian atmosphere are used as propellants in a rocket propulsion system for an unmanned vehicle on suborbital trajectories between landing sights separated by distances of up to 1000 km. This mobility concept is seen as uniquely capable of allowing both intensive and extensive exploration o...

  11. Regional Joint-Integrated Air and Missile Defense (RF-IAMD): An Operational Level Integrated Air and Missile Defense (IAMD) Command and Control (C2) Organization

    Science.gov (United States)

    2015-05-15

    individually and in combination …(that) need to be roughly in balance…in respect to the…operational…objective. Operational Protection- A series of actions...ensures air, space, and cyberspace operations effectively support the combined /joint force objectives while retaining enough flexibility to adjust

  12. A Residual Mass Ballistic Testing Method to Compare Armor Materials or Components (Residual Mass Ballistic Testing Method)

    Energy Technology Data Exchange (ETDEWEB)

    Benjamin Langhorst; Thomas M Lillo; Henry S Chu

    2014-05-01

    A statistics based ballistic test method is presented for use when comparing multiple groups of test articles of unknown relative ballistic perforation resistance. The method is intended to be more efficient than many traditional methods for research and development testing. To establish the validity of the method, it is employed in this study to compare test groups of known relative ballistic performance. Multiple groups of test articles were perforated using consistent projectiles and impact conditions. Test groups were made of rolled homogeneous armor (RHA) plates and differed in thickness. After perforation, each residual projectile was captured behind the target and its mass was measured. The residual masses measured for each test group were analyzed to provide ballistic performance rankings with associated confidence levels. When compared to traditional V50 methods, the residual mass (RM) method was found to require fewer test events and be more tolerant of variations in impact conditions.

  13. The application of a calibrated 3D ballistic trajectory model to ballistic hazard assessments at Upper Te Maari, Tongariro

    Science.gov (United States)

    Fitzgerald, R. H.; Tsunematsu, K.; Kennedy, B. M.; Breard, E. C. P.; Lube, G.; Wilson, T. M.; Jolly, A. D.; Pawson, J.; Rosenberg, M. D.; Cronin, S. J.

    2014-10-01

    On 6 August, 2012, Upper Te Maari Crater, Tongariro volcano, New Zealand, erupted for the first time in over one hundred years. Multiple vents were activated during the hydrothermal eruption, ejecting blocks up to 2.3 km and impacting ~ 2.6 km of the Tongariro Alpine Crossing (TAC) hiking track. Ballistic impact craters were mapped to calibrate a 3D ballistic trajectory model for the eruption. This was further used to inform future ballistic hazard. Orthophoto mapping revealed 3587 impact craters with a mean diameter of 2.4 m. However, field mapping of accessible regions indicated an average of at least four times more observable impact craters and a smaller mean crater diameter of 1.2 m. By combining the orthophoto and ground-truthed impact frequency and size distribution data, we estimate that approximately 13,200 ballistic projectiles were generated during the eruption. The 3D ballistic trajectory model and a series of inverse models were used to constrain the eruption directions, angles and velocities. When combined with eruption observations and geophysical observations, the model indicates that the blocks were ejected in five variously directed eruption pulses, in total lasting 19 s. The model successfully reproduced the mapped impact distribution using a mean initial particle velocity of 200 m/s with an accompanying average gas flow velocity over a 400 m radius of 150 m/s. We apply the calibrated model to assess ballistic hazard from the August eruption along the TAC. By taking the field mapped spatial density of impacts and an assumption that an average ballistic impact will cause serious injury or death (casualty) over an 8 m2 area, we estimate that the probability of casualty ranges from 1% to 16% along the affected track (assuming an eruption during the time of exposure). Future ballistic hazard and probabilities of casualty along the TAC are also assessed through application of the calibrated model. We model a magnitude larger eruption and illustrate

  14. Antioxidative defense

    Directory of Open Access Journals (Sweden)

    Stevanović Jelka

    2011-01-01

    Full Text Available Free radicals occur constantly during metabolism and take part in numerous physiological processes, such as: intra-cellular and inter-cellular signalization, gene expression, removal of damaged or senescent cells, and control of the tone of blood vessels. However, there is an increased quantity of free radicals in situations of so-called oxidative stress, when they cause serious damage to cellular membranes (peroxidation of their lipids, damage of membrane proteins, and similar, to interior cellular protein molecules, as well as DNA molecules and carbohydrates. This is precisely why the organism has developed numerous mechanisms for removing free radicals and/or preventing their production. Some of these are enzyme-related and include superoxide-dismutase, catalase, glutathione-peroxidase, and others. Other, non-enzyme mechanisms, imply antioxidative activities of vitamins E and C, provitamin A, coenzyme Q, reduced glutation, and others. Since free radicals can leave the cell that has produced them and become dispersed throughout the body, in addition to antioxidative defense that functions within cellular structures, antioxidant extra-cellular defense has also been developed. This is comprised by: transferrin, lactoferrin, haptoglobin, hemopexin, ceruloplasmin, albumins, extra-cellular isoform SOD, extracellular glutathione-peroxidase, glucose, bilirubin, urates, and many other molecules.

  15. Dynamics and thermal sensitivity of ballistic and non-ballistic feeding in salamanders.

    Science.gov (United States)

    Deban, Stephen M; Scales, Jeffrey A

    2016-02-01

    Low temperature reduces the performance of muscle-powered movements, but in movements powered by elastic recoil mechanisms, this effect can be mitigated and performance can be increased. To better understand the morphological basis of high performance and thermal robustness of elastically powered movements, we compared feeding dynamics at a range of temperatures (5-25°C) in two species of terrestrial plethodontid salamanders, Plethodon metcalfi and Ensatina eschscholtzii, which differ in tongue muscle architecture and the mechanism of tongue projection. We found that Ensatina is capable of ballistic projection with a mean muscle mass-specific power of 2100 W kg(-1), revealing an elastic mechanism. Plethodon, in contrast, projected its tongue non-ballistically with a mean power of only 18 W kg(-1), indicating it is muscle powered. Ensatina projected its tongue significantly farther than Plethodon and with dynamics that had significantly lower thermal sensitivity at temperatures below 15°C. These performance differences were correlated with morphological differences, namely elongated collagenous aponeuroses in the projector muscle of Ensatina as compared with Plethodon, which are likely the site of energy storage, and the absence in Ensatina of projector muscle fibers attaching to the tongue skeleton that allows projection to be truly ballistic. These findings demonstrate that, in these otherwise similar species, the presence in one species of elaborated connective tissue in series with myofibers confers not only 10-fold greater absolute performance but also greater thermal robustness of performance. We conclude that changes in muscle and connective tissue architecture are sufficient to alter significantly the mechanics, performance and thermal robustness of musculoskeletal systems.

  16. 国外舰载防空反导火控系统发展现状%Study on Overseas Development Conditions of Shipboard Aerial Defence Anti-Missile Fire System

    Institute of Scientific and Technical Information of China (English)

    王金云; 王孟军

    2013-01-01

    论述了国外舰载火控系统的发展状况,介绍了各国防空反导系统中防空导弹、火炮、弹、炮、箭相结合的防御方式及新概念武器发展现状及其特点分析,指出未来防空反导任务中,需在火控技术上采用新的机理(如多传感器信息融合、对机动目标滤波处理、火控解算等),火力配置上采用分层防御,各种武器系统协同作战,实现对来袭导弹有效拦截。%The paper discusses the development conditions of overseas shipboard weapon system, introduces aerial defence missile,gun,missile-gun,missile-rocket integrated defense mode and new concept weapon development status and characteristics analysis. Finally,it is necessary to study new fire control theory(multiple sensors information fusion,maneuvering targets filtering,fire control computation) in the future aerial defence anti-missile task,adopted layered defence mode for fire configuration,all kinds of weapon combination fight. It is available to hold up missile.

  17. National Commission on the Structure of the Air Force: Report to the President and Congress of the United States

    Science.gov (United States)

    2014-01-30

    security expertise, disaster recovery, computer forensics , and incident management. Michigan Governor Rick Snyder is the co-chair for the National...Group Manning Document HAF Headquarters Air Force HUMINT Human Intelligence ICAM Individual Cost Assessment Model ICBM Intercontinental Ballistic ...director, he was deeply involved in policies and programs relating to ballistic missile defense; strategic deterrence and naval strategy

  18. Superconducting Graphene Nanodevices in Ballistic Transport Regime

    Science.gov (United States)

    Chen, Yu-An; Wang, Joel I.-Jan; Watanabe, Kenji; Taniguchi, Takashi; Jarillo-Herrero, Pablo; Pablo Jarillo-Herrero's Group Team

    2013-03-01

    Superconductivity carried by Dirac fermions can be realized through induced superconductivity in grapheme. Observation of novel phenomena anticipated by theories requires graphene devices with low disorder whereas the carrier transport is ballistic. Current fabrication procedures to make graphene devices with low disorder like suspension or ultra-flat substrates all call for certain kinds of annealing to remove organic residues derived from the fabrication process. Applying these methods to superconducting devices can be challenging since the transparency at the graphene/superconductor interface will be destroyed. Here we present a method to do dry transfer of patterned hexagonal Boron Nitride (hBN) flakes onto graphene. The ultra flatness and lack of dangling bond in the boron nitride substrate reduces the disorder in graphene, and the top layer hBN can protect the graphene from contamination in the nanofabrication procedures and yield the geometry desired for different experimental exploration. National Institute for Materials Science, Namiki 1-1, Tsukuba, Ibaraki 305-0044, Japan

  19. Allegany Ballistics Lab: sensor test target system

    Science.gov (United States)

    Eaton, Deran S.

    2011-06-01

    Leveraging the Naval Surface Warfare Center, Indian Head Division's historical experience in weapon simulation, Naval Sea Systems Command commissioned development of a remote-controlled, digitally programmable Sensor Test Target as part of a modern, outdoor hardware-in-the-loop test system for ordnance-related guidance, navigation and control systems. The overall Target system design invokes a sciences-based, "design of automated experiments" approach meant to close the logistical distance between sensor engineering and developmental T&E in outdoor conditions over useful real world distances. This enables operating modes that employ broad spectrum electromagnetic energy in many a desired combination, variably generated using a Jet Engine Simulator, a multispectral infrared emitter array, optically enhanced incandescent Flare Simulators, Emitter/Detector mounts, and an RF corner reflector kit. As assembled, the recently tested Sensor Test Target prototype being presented can capably provide a full array of useful RF and infrared target source simulations for RDT&E use with developmental and existing sensors. Certain Target technologies are patent pending, with potential spinoffs in aviation, metallurgy and biofuels processing, while others are variations on well-established technology. The Sensor Test Target System is planned for extended installation at Allegany Ballistics Laboratory (Rocket Center, WV).

  20. Ballistic spin transport in exciton gases

    Science.gov (United States)

    Kavokin, A. V.; Vladimirova, M.; Jouault, B.; Liew, T. C. H.; Leonard, J. R.; Butov, L. V.

    2013-11-01

    Traditional spintronics relies on spin transport by charge carriers, such as electrons in semiconductor crystals. The challenges for the realization of long-range electron spin transport include rapid spin relaxation due to electron scattering. Scattering and, in turn, spin relaxation can be effectively suppressed in excitonic devices where the spin currents are carried by electrically neutral bosonic quasiparticles: excitons or exciton-polaritons. They can form coherent quantum liquids that carry spins over macroscopic distances. The price to pay is a finite lifetime of the bosonic spin carriers. We present the theory of exciton ballistic spin transport which may be applied to a range of systems supporting bosonic spin transport, in particular to indirect excitons in coupled quantum wells. We describe the effect of spin-orbit interaction for the electron and the hole on the exciton spin, account for the Zeeman effect induced by external magnetic fields and long-range and short-range exchange splittings of the exciton resonances. We also consider exciton transport in the nonlinear regime and discuss the definitions of the exciton spin current, polarization current, and spin conductivity.

  1. 高超声速巡航导弹攻防对抗仿真研究%Study about Hypersonic Cruise Missile Combat Engagement Simulation

    Institute of Scientific and Technical Information of China (English)

    郑祥品; 王志刚

    2012-01-01

    在当前复杂作战环境下,对导弹武器系统进行攻防对抗研究是非常有必要的.针对攻防对抗这一复杂的动态过程,建立了高超声速巡航导弹攻防对抗仿真模型.并在此模型中,分别给出了结果评判模型、作战环境模型和对抗仿真模型.并根据所建立的仿真模型,计算出高超声速巡航导弹的突防概率.仿真算例结果表明,减小高超声速巡航导弹的雷达反射截面积RCS和增大高超声速巡航导弹的巡航速度是提高其突防效能的重要手段.%During current complex combat conditions, investigation of combat engagement of a new technology missile weapon system is necessary. Aimed at the complex dynamic course of combat engagement, a framework for hypersonic cruise missile combat engagement simulation is established. The combat engagement models of offensive side and defensive side are established in this framework, as well as combat environment models and damage probability of the hypersonic cruise missile are computed. Finally, penetration effectiveness of the hypersonic cruise missile is given. The results show that reducing the RCS and increasing the cruise velocity of the hypersonic cruise missile are two important approaches to improve the penetration effectiveness.

  2. Procedural Control: The Future of the Provincial Reconstruction Team

    Science.gov (United States)

    2011-05-19

    Command Website, www.STRATCOM.mil. (accessed on 02 December 2010); Joel D. Babbitt and Mike H. Miklaski, “A Methodology for Developing Timing...Missile Defense;” STRATCOM Website; Babbitt , “A Methodology for Developing Timing Constraints;” Ballistic Midcourse Defense System Booklet; Sauter...On War. Princeton, MA: Princeton University Press, 1984. Edition, Washington, DC: Missile Defense Agency, December 2008. Theses Babbitt , Joel

  3. CERAMIC SYSTEMS FOR MISSILE STRUCTURAL APPLICATIONS.

    Science.gov (United States)

    prepared concurrently with this report are available from the Defense Documentation Center, and the respective titles are ’Composite Thermal...on the particle distribution, time-temperature- cristobalite behavior and physical properties of pure fused silica, and fabrication of SCFS radome

  4. Cooled and uncooled infrared detectors for missile seekers

    Science.gov (United States)

    Fraenkel, Rami; Haski, Jacob; Mizrahi, Udi; Shkedy, Lior; Shtrichman, Itay; Pinsky, Ephi

    2014-06-01

    Electro-optical missile seekers pose exceptional requirements for infrared (IR) detectors. These requirements include: very short mission readiness (time-to-image), one-time and relatively short mission duration, extreme ambient conditions, high sensitivity, fast frame rate, and in some cases small size and cost. SCD is engaged in the development and production of IR detectors for missile seeker applications for many years. 0D, 1D and 2D InSb focal plane arrays (FPAs) are packaged in specially designed fast cool-down Dewars and integrated with Joule-Thomson (JT) coolers. These cooled MWIR detectors were integrated in numerous seekers of various missile types, for short and long range applications, and are combat proven. New technologies for the MWIR, such as epi-InSb and XBn-InAsSb, enable faster cool-down time and higher sensitivity for the next generation seekers. The uncooled micro-bolometer technology for IR detectors has advanced significantly over the last decade, and high resolution - high sensitivity FPAs are now available for different applications. Their much smaller size and cost with regard to the cooled detectors makes these uncooled LWIR detectors natural candidates for short and mid-range missile seekers. In this work we will present SCD's cooled and uncooled solutions for advanced electro-optical missile seekers.

  5. Missile launch detection electric field perturbation experiment. Final report

    Energy Technology Data Exchange (ETDEWEB)

    Kane, R.J.; Rynne, T.M.

    1993-04-28

    The Lawrence Livermore National Laboratory and SARA Inc. participated in the ATMD missile launch activities that occurred at WSMR during January 1993. LLNL and SARA deployed sensors for monitoring of basic phenomena. An attempt was made to measure perturbations of the earth geo-potential during the launch of a Lance missile. The occurrence of the perturbation is expected from the conducting body of the missile and the exhaust plume. A set of voltage-probe antennas were used to monitor the local electric field perturbation from the launch at ranges of approximately 1 km. Examination of the data acquired during the launch period failed to show identifiable correlation of the field variations with the launch event. Three reasons are ascribed to this lack of event data: (1) The electric field potential variations have a limited spatial correlation length - the fields measured in one region have little correlation to measurements made at distances of a kilometer away. The potential variations are related to localized atmospheric disturbances and are generally unpredictable. A value for the spatial correlation length is also not known. (2) The conductivity of the plume and missile body are not adequate to produce a field perturbation of adequate magnitude. Phenomena related to the exhaust plume and missile may exist and be outside of the collection range of the equipment employed for these measurements. (3) The presence of 60 Hz power line noise was of sufficient magnitude to irreversibly contaminate measurements.

  6. Improvement of Interior Ballistic Performance Utilizing Particle Swarm Optimization

    Directory of Open Access Journals (Sweden)

    Hazem El Sadek

    2014-01-01

    Full Text Available This paper investigates the interior ballistic propelling charge design using the optimization methods to select the optimum charge design and to improve the interior ballistic performance. The propelling charge consists of a mixture propellant of seven-perforated granular propellant and one-hole tubular propellant. The genetic algorithms and some other evolutionary algorithms have complex evolution operators such as crossover, mutation, encoding, and decoding. These evolution operators have a bad performance represented in convergence speed and accuracy of the solution. Hence, the particle swarm optimization technique is developed. It is carried out in conjunction with interior ballistic lumped-parameter model with the mixture propellant. This technique is applied to both single-objective and multiobjective problems. In the single-objective problem, the optimization results are compared with genetic algorithm and the experimental results. The particle swarm optimization introduces a better performance of solution quality and convergence speed. In the multiobjective problem, the feasible region provides a set of available choices to the charge’s designer. Hence, a linear analysis method is adopted to give an appropriate set of the weight coefficients for the objective functions. The results of particle swarm optimization improved the interior ballistic performance and provided a modern direction for interior ballistic propelling charge design of guided projectile.

  7. Transition to ballistic regime for heat transport in helium II

    Energy Technology Data Exchange (ETDEWEB)

    Sciacca, Michele, E-mail: michele.sciacca@unipa.it [Dipartimento Scienze Agrarie e Forestali, Università degli studi di Palermo, Viale delle Scienze, 90128 Palermo (Italy); Departament de Física, Universitat Autònoma de Barcelona, 08193 Bellaterra, Catalonia (Spain); Sellitto, Antonio, E-mail: ant.sellitto@gmail.com [Dipartimento di Matematica, Informatica ed Economia, Università della Basilicata, Campus Macchia Romana, 85100 Potenza (Italy); Jou, David, E-mail: david.jou@uab.cat [Departament de Física, Universitat Autònoma de Barcelona, 08193 Bellaterra, Catalonia (Spain); Institut d' Estudis Catalans, Carme 47, 08001 Barcelona, Catalonia (Spain)

    2014-07-04

    The size-dependent and flux-dependent effective thermal conductivity of narrow capillaries filled with superfluid helium is analyzed from a thermodynamic continuum perspective. The classical Landau evaluation of the effective thermal conductivity of quiescent superfluid, or the Gorter–Mellinck regime of turbulent superfluids, is extended to describe the transition to ballistic regime in narrow channels wherein the radius R is comparable to (or smaller than) the phonon mean-free path ℓ in superfluid helium. To do so, we start from an extended equation for the heat flux incorporating non-local terms, and take into consideration a heat slip flow along the walls of the tube. This leads from an effective thermal conductivity proportional to R{sup 2} (Landau regime) to another one proportional to Rℓ (ballistic regime). We consider two kinds of flows: along cylindrical pipes and along two infinite parallel plates. - Highlights: • Heat transport in counterflow helium in the ballistic regime. • The one-fluid model based on the Extended Thermodynamics is used. • The transition from the Landau regime to the ballistic regime. • The transition from quantum turbulence to ballistic regime.

  8. The analysis of a generic air-to-air missile simulation model

    Science.gov (United States)

    Kaplan, Joseph A.; Chappell, Alan R.; Mcmanus, John W.

    1994-01-01

    A generic missile model was developed to evaluate the benefits of using a dynamic missile fly-out simulation system versus a static missile launch envelope system for air-to-air combat simulation. This paper examines the performance of a launch envelope model and a missile fly-out model. The launch envelope model bases its probability of killing the target aircraft on the target aircraft's position at the launch time of the weapon. The benefits gained from a launch envelope model are the simplicity of implementation and the minimal computational overhead required. A missile fly-out model takes into account the physical characteristics of the missile as it simulates the guidance, propulsion, and movement of the missile. The missile's probability of kill is based on the missile miss distance (or the minimum distance between the missile and the target aircraft). The problems associated with this method of modeling are a larger computational overhead, the additional complexity required to determine the missile miss distance, and the additional complexity of determining the reason(s) the missile missed the target. This paper evaluates the two methods and compares the results of running each method on a comprehensive set of test conditions.

  9. 76 FR 63541 - Design-Basis Hurricane and Hurricane Missiles for Nuclear Power Plants

    Science.gov (United States)

    2011-10-13

    ...-2010-0288] Design-Basis Hurricane and Hurricane Missiles for Nuclear Power Plants AGENCY: Nuclear... Hurricane Missiles for Nuclear Power Plants.'' This regulatory guide provides licensees and applicants with... hurricane and design-basis hurricane-generated missiles that a nuclear power plant should be designed...

  10. Fires, A Joint Professonal Bulletin for US Field and Air Defense Artillerymen, May-June 2007

    Science.gov (United States)

    2007-06-01

    Range in New Mexico . A PAC-2 cannister is in the foreground. Patriot is a high- to medium-altitude air defense system designed to intercept tactical...THAAD at PMRF since the equipment was moved from White Sands Missile Range (WSMR), New Mexico , in Oc- tober 2006. For the first time, Soldiers of...briefing the BCT leadership, including video and storyboards from GMLRS unitary engagements in OIF and OEF. In time, the platoon leader proved the

  11. Pricing Strategy, Pricing Stability and Financial Condition in the Defense Aerospace Industry

    OpenAIRE

    Johnstone, Jeffrey Carl; Keavney, Patrick Daniel

    1987-01-01

    Approved for public release, distribution unlimited The purpose of this research is to determine if pricing strategy and pricing stability for products in the defense aerospace industry can be predicted based on a firm's financial condition. The sample for this research includes 17 contractors and 52 missile and aircraft programs. Two separate issues are addressed. The first issue concerns the relationship between financial condition and contractor pricing strategy. The second concerns the...

  12. The Emerging Shield. The Air Force and the Evolution of Continental Air Defense 1945-1960

    Science.gov (United States)

    1991-01-01

    pp 219-29. 36. Cuthbertson, Canadian Military 24. For the decision to equip the Independence, pp 50-51. Arrow with the most up - todate missile and...of war is not a simple shield, but a shield made up of well-directed blows." Also, after meeting an attack, Clausewitz ad- vocated that a military...Waggonfabrik. The more advanced models, as fast as contemporary pursuit planes, could remain in the air up to 6 hours. Armed with 3 defensive

  13. Relationship between Ballistic Coefficient and Static Mechanical Properties for Armor Materials

    Institute of Scientific and Technical Information of China (English)

    2001-01-01

    The relationship between the ballistic coefficient and the static mechanical properties of armor materials was studied. The results show that the ballistic coefficient is determined by the strength, hardness and the toughness of materials. According to the Martel rule, the equation of the relationship between ballistic coefficient and static mechanical properties satisfies the following formula: . From the mixture law of composite, the prerequisite, for which ballistic coefficient has maximum to reinforcement volume fraction, is obtained by the following equation: .

  14. High performance infrared fast cooled detectors for missile applications

    Science.gov (United States)

    Reibel, Yann; Espuno, Laurent; Taalat, Rachid; Sultan, Ahmad; Cassaigne, Pierre; Matallah, Noura

    2016-05-01

    SOFRADIR was selected in the late 90's for the production of 320×256 MW detectors for major European missile programs. This experience has established our company as a key player in the field of missile programs. SOFRADIR has since developed a vast portfolio of lightweight, compact and high performance JT-based solutions for missiles. ALTAN is a 384x288 Mid Wave infrared detector with 15μm pixel pitch, and is offered in a miniature ultra-fast Joule- Thomson cooled Dewar. Since Sofradir offers both Indium Antimonide (InSb) and Mercury Cadmium Telluride technologies (MCT), we are able to deliver the detectors best suited to customers' needs. In this paper we are discussing different figures of merit for very compact and innovative JT-cooled detectors and are highlighting the challenges for infrared detection technologies.

  15. Flexible missile autopilot design studies with PC-MATLAB/386

    Science.gov (United States)

    Ruth, Michael J.

    1989-01-01

    Development of a responsive, high-bandwidth missile autopilot for airframes which have structural modes of unusually low frequency presents a challenging design task. Such systems are viable candidates for modern, state-space control design methods. The PC-MATLAB interactive software package provides an environment well-suited to the development of candidate linear control laws for flexible missile autopilots. The strengths of MATLAB include: (1) exceptionally high speed (MATLAB's version for 80386-based PC's offers benchmarks approaching minicomputer and mainframe performance); (2) ability to handle large design models of several hundred degrees of freedom, if necessary; and (3) broad extensibility through user-defined functions. To characterize MATLAB capabilities, a simplified design example is presented. This involves interactive definition of an observer-based state-space compensator for a flexible missile autopilot design task. MATLAB capabilities and limitations, in the context of this design task, are then summarized.

  16. Novel formulations of ballistic gelatin. 1. Rheological properties.

    Science.gov (United States)

    Zecheru, Teodora; Său, Ciprian; Lăzăroaie, Claudiu; Zaharia, Cătălin; Rotariu, Traian; Stănescu, Paul-Octavian

    2016-06-01

    Ballistic gelatin is the simulant of the human body during field tests in forensics and other related fields, due to its physical and mechanical similarities to human trunk and organs. Since the ballistic gelatin used in present has important issues to overcome, an alternative approach is the use of gelatin-polymer composites, where a key factor is the insertion of biocompatible materials, which replicate accurately the human tissues. In order to be able to obtain an improved material in terms of mechanical performances by an easy industrial-scale technology, before the verification of the ballistic parameters by shooting in agreement with military standards, one of the best and cheapest solutions is to perform a thorough check of their rheological properties, in standard conditions.

  17. ["Piggyback" shot: ballistic parameters of two simultaneously discharged airgun pellets].

    Science.gov (United States)

    Frank, Matthias; Schönekess, Holger C; Grossjohann, Rico; Ekkernkamp, Axel; Bockholdt, Britta

    2014-01-01

    Green and Good reported an uncommon case of homicide committed with an air rifle in 1982 (Am. J. Forensic Med. Pathol. 3: 361-365). The fatal wound was unusual in that two airgun pellets were loaded in so-called "piggyback" fashion into a single shot air rifle. Lack of further information on the ballistic characteristics of two airgun pellets as opposed to one conventionally loaded projectile led to this investigation. The mean kinetic energy (E) of the two pellets discharged in "piggyback" fashion was E = 3.6 J and E = 3.4 J, respectively. In comparison, average kinetic energy values of E = 12.5 J were calculated for conventionally discharged single diabolo pellets. Test shots into ballistic soap confirmed the findings of a single entrance wound as reported by Green and Good. While the ballistic background of pellets discharged in "piggyback" fashion could be clarified, the reason behind this mode of shooting remains unclear.

  18. Ballistic spin filtering across the ferromagnetic-semiconductor interface

    Directory of Open Access Journals (Sweden)

    Y.H. Li

    2012-03-01

    Full Text Available The ballistic spin-filter effect from a ferromagnetic metal into a semiconductor has theoretically been studied with an intention of detecting the spin polarizability of density of states in FM layer at a higher energy level. The physical model for the ballistic spin filtering across the interface between ferromagnetic metals and semiconductor superlattice is developed by exciting the spin polarized electrons into n-type AlAs/GaAs superlattice layer at a much higher energy level and then ballistically tunneling through the barrier into the ferromagnetic film. Since both the helicity-modulated and static photocurrent responses are experimentally measurable quantities, the physical quantity of interest, the relative asymmetry of spin-polarized tunneling conductance, could be extracted experimentally in a more straightforward way, as compared with previous models. The present physical model serves guidance for studying spin detection with advanced performance in the future.

  19. Department of Defense In-House RDT&E Activities. Management Analysis Report: Department of the Army, Department of the Navy, Department of the Air Force

    Science.gov (United States)

    1985-10-30

    RESEARCH INSTITUTE OF CHEMICAL DEFENSE ..................... 43 MEDICAL RESEARCH INSTITUTE OF INFECTIOUS DISEASES .................. 44 MISSILE...COMPUTER SUPPORT AVAILABLE.TEMPERATURES TO -50 DEG FAHR CONNON. 16 INSTALLATION: COMBAT SYSTEMS TEST ACTIVITY ABERDEEN PVG GRDMD CDR. COL RONALD V. HITE...FROM CHEM AGENT & VECTOR BORN DISEASE ; MAMMALIAN & IN VITRO TOXICOLOGY; FORWARD AREA CASUALTY CARE ... CURRENT IMPORTANT PROGRAMS DFTERMINATION OF SAFE

  20. Consolidation of data base for Army generalized missile model

    Science.gov (United States)

    Klenke, D. J.; Hemsch, M. J.

    1980-01-01

    Data from plume interaction tests, nose mounted canard configuration tests, and high angle of attack tests on the Army Generalized Missile model are consolidated in a computer program which makes them readily accessible for plotting, listing, and evaluation. The program is written in FORTRAN and will run on an ordinary minicomputer. It has the capability of retrieving any coefficient from the existing DATAMAN tapes and displaying it in tabular or plotted form. Comparisons of data taken in several wind tunnels and of data with the predictions of Program MISSILE2 are also presented.

  1. Robust control for snake maneuver design of missile

    Science.gov (United States)

    Kun, Ya; Chen, Xin; Li, Chuntao

    2017-01-01

    For the performance of missile with high Mach number and strongly nonlinear dynamics, this paper uses robust control to design maneuver controller. Robust servomechanism linear quadratic regulator (RSLQR) control is used to form the inner loop and proportional-plus-integral (PI) control is used to provide yawing tracking with no error. Contrast simulations under three types of deviation have been done to confirm robustness of the RSLQR-plus-PI control. Simulation results shows that RSLQR-plus-PI control would resist the disturbance and maintain the properties of the controller, guarantee the robustness and stability of missile more effectively than pure PI control.

  2. A METHOD IN SYSTEM DESIGN OF EJECTING DEVICES OF MISSILES

    Institute of Scientific and Technical Information of China (English)

    DaiLongcheng; XuanYimin

    2002-01-01

    Anew method in system design of ejecting devices of missiles is first presented.Some important points are dis-cussed,which guid the research and development of new ejecting devices of missileg,amd provid the foundation flr thw design of mew ejecting device is provided.The system design includes the distribution of techmology specifica-tion,3-D solid modeling of ejecting devices of missiles im-ported from abroad,the design of pmeumatic device sys-tem,the design of ejecting mechanism system,the predic-tion of reliability and the experimental analysis,etc.

  3. Heat Transfer Between a Missile's Combustion Chamber and the Warhead

    Institute of Scientific and Technical Information of China (English)

    赵永涛; 张奇; 白春华; 闫华

    2003-01-01

    Under higher temperatures the charge within a warhead will be subjected to physical and chemical changes, which will influence the security of the warhead launching process. In this paper the problem is studied adopting finite difference method for the case of a rocket-powered missile. Temperature distribution tables are given through quadrature experiments, and the results fit the actual measured values very well. The results also show that to ensure the launching security of rocket-powered missiles having warhead charge critical temperature close to about 60 ℃, the designer can select appropriate heat insulation structural parameters.

  4. Electric Loading Simulation System for Missile Wings and Rudders

    Institute of Scientific and Technical Information of China (English)

    QI Rong; LIN Hui; CHEN Ming

    2006-01-01

    The design and the realization of missile wings and rudders loading simulation system based on digital signal processor (DSP) TMS320LF2407 and direct torque control (DTC) servo driver ACS600 are discussed. The structure and opration principle for the system are presented. Speediness and elimination of superabundant torque are two key difficulties for electric loading simulation system. The method which can eliminate the superabundant torque is researched. Test results show the airflow resistance when missile wings and rudders are spreading can be rapidly simulated with high accuracy.

  5. Gunshot wounds: A review of ballistics related to penetrating trauma

    Directory of Open Access Journals (Sweden)

    Panagiotis K. Stefanopoulos

    2014-01-01

    Full Text Available Civilian gunshot injuries from handgun and rifle ammunition vary in severity depending on the anatomic location involved and the different effects from the ballistic properties of the penetrating projectiles. Ballistic factors such as the impact velocity and energy should not be considered in isolation, as their specific effects are determined by the interaction between the projectile and tissues. Increased tissue damage can result from tumbling of non-deforming rifle bullets and deformation of expanding bullets. Both of these mechanisms increase substantially the energy transfer to the wound and its diameter, also producing a pulsating temporary cavity associated with pressure changes within tissue.

  6. Internal Ballistics of High Velocity Special Purpose Guns

    Directory of Open Access Journals (Sweden)

    V. K. Gupta

    1976-07-01

    Full Text Available More and more conventional guns are being utilized as special purpose guns to achieve very high velocity by using unconventionally high C/W ratios. The existing methods of internal ballistics give satisfactory results only for low (less than one C/W ratios. In the present paper the basic internal ballistic equations have been modified to cater for non-linear rate of burning, cubical form function and a realistic pressure gradient between breech face and the projectile base. The equations have been numerically solved. The results for low and high C/W ratios have been compared with those obtained by using conventional methods.

  7. Geometrical optimization of a local ballistic magnetic sensor

    Energy Technology Data Exchange (ETDEWEB)

    Kanda, Yuhsuke; Hara, Masahiro [Graduate School of Science and Technology, Kumamoto University, 2-39-1 Kurokami, Kumamoto 860-8555 (Japan); Nomura, Tatsuya [Advanced Electronics Research Division, INAMORI Frontier Research Center, Kyushu University, 744 Motooka, Fukuoka 819-0395 (Japan); Kimura, Takashi [Advanced Electronics Research Division, INAMORI Frontier Research Center, Kyushu University, 744 Motooka, Fukuoka 819-0395 (Japan); Department of Physics, Kyushu University, 6-10-1 Hakozaki, Fukuoka 812-8581 (Japan)

    2014-04-07

    We have developed a highly sensitive local magnetic sensor by using a ballistic transport property in a two-dimensional conductor. A semiclassical simulation reveals that the sensitivity increases when the geometry of the sensor and the spatial distribution of the local field are optimized. We have also experimentally demonstrated a clear observation of a magnetization process in a permalloy dot whose size is much smaller than the size of an optimized ballistic magnetic sensor fabricated from a GaAs/AlGaAs two-dimensional electron gas.

  8. Advanced Computer Science on Internal Ballistics of Solid Rocket Motors

    Science.gov (United States)

    Shimada, Toru; Kato, Kazushige; Sekino, Nobuhiro; Tsuboi, Nobuyuki; Seike, Yoshio; Fukunaga, Mihoko; Daimon, Yu; Hasegawa, Hiroshi; Asakawa, Hiroya

    In this paper, described is the development of a numerical simulation system, what we call “Advanced Computer Science on SRM Internal Ballistics (ACSSIB)”, for the purpose of improvement of performance and reliability of solid rocket motors (SRM). The ACSSIB system is consisting of a casting simulation code of solid propellant slurry, correlation database of local burning-rate of cured propellant in terms of local slurry flow characteristics, and a numerical code for the internal ballistics of SRM, as well as relevant hardware. This paper describes mainly the objectives, the contents of this R&D, and the output of the fiscal year of 2008.

  9. Low-Energy Ballistic Transfers to Lunar Halo Orbits

    Science.gov (United States)

    Parker, Jeffrey S.

    2009-01-01

    Recent lunar missions have begun to take advantage of the benefits of low-energy ballistic transfers between the Earth and the Moon rather than implementing conventional Hohmann-like lunar transfers. Both Artemis and GRAIL plan to implement low-energy lunar transfers in the next few years. This paper explores the characteristics and potential applications of many different families of low-energy ballistic lunar transfers. The transfers presented here begin from a wide variety of different orbits at the Earth and follow several different distinct pathways to the Moon. This paper characterizes these pathways to identify desirable low-energy lunar transfers for future lunar missions.

  10. Design and Implementation of One Missile Visual Simulation System Based on OpenGL

    Institute of Scientific and Technical Information of China (English)

    GAO Ying; ZHANG Pu-zhao; PENG Yu-xin; HUANG Jian-guo

    2007-01-01

    The implementation of a missile's visual simulation system is explained that is developed with OpenGL(open graphic library) and the flight path and flight carriage in different stages of the missile are displayed. The establishment problems of the 3D scene are circumstantiated including the construction and redeployment of the model, creation of the virtual scene, setting of the multi-viewports and multi-windows etc. The missile's data driver, system flow, the modules and their mutual relations of the missile visual simulation system are discussed. The missile flight simulation results and effect of the scenes are given.

  11. Science and Technology in Development Environments - Findings and Observations for the Missile Defense Agency from Commercial Industry and Defense Programs

    Science.gov (United States)

    2003-05-01

    Rachel Dubin , Gerald Epstein, Forrest Frank, Donald Goldstein, Bradley Hartfield, Ivars Gutmanis, Yevgeny Macheret, Jack Nunn, and Richard White...nation, engagement planning, threat engagement, and kill assessment. The notice called for concepts in radar systems, lasers, and electro -optical

  12. An analysis of the common missile and TOW 2B on the Stryker anti-tank guided missile platform, using the Janus simulation

    OpenAIRE

    2002-01-01

    Approved for public release; distribution in unlimited. The U.S. Army is beginning to field the first of six Stryker Brigade Combat Teams (SBCTs) and equip the organic Anti-Tank (AT) Company of the Brigade with the LAV III Anti-Tank Guided Missile (ATGM) Platform and the Tube-Launched, Optically-Tracked, Wire-Guided 2B (TOW 2B) missile system. A developmental effort is currently underway to replace the aging TOW 2B and Hellfire missile systems with a common missile that meets both ground...

  13. Controlling The Spread of Land-Attack Cruise Missiles.

    Science.gov (United States)

    2007-11-02

    Debate in the ’New’ European Community," Arms Control Today 23, no. 2 (March 1993): 12. 38 Controlling the Spread of Land-Attack Cruise Missiles...of temperature, pressures or atmosphere in autoclaves or hydro- claves when used for the production of composites or partially processed composites

  14. Shipborne Laser Beam Weapon System for Defence against Cruise Missiles

    Directory of Open Access Journals (Sweden)

    J.P. Dudeja

    2000-04-01

    Full Text Available Sea-skim~ing cruise missiles pose the greatest threat to a surface ship in the present-day war scenario. The convenitional close-in-weapon-systems (CIWSs are becoming less reliable against these new challenges requiring extremely fast reaction time. Naval Forces see a high energy laser as a feasible andjeffective directed energy weapon against sea-skimming antiship cruise missiles becauseof its .ability to deliver destructive energy at the speed of light on to a distant target. The paper comparesthe technology and capability of deuterium fluoride (DF and chemical-oxygen-iodine laser (COIL in effectively performing the role of a shipborne CIWS altainst sea-skimming missiles. Out of these twolasers, it is argued that DF laser wo.uld be more effective a,s a shipborne weapon for defence against sea-skimmin,g cruise missiles. Besides the high energy laser as the primary (killing laser, othersub-systems required in the complete weapon system would be: A beacon laser to sense phase distor'ions in the primary laser, adaptive optics to compensate the atmospheric distortions, beam-directing optics, illuminating lasers, IRST sensors, surveillance and tracking radars, interfacing system, etc.

  15. Health Management and Service Life for Air Force Missiles

    Science.gov (United States)

    2011-09-26

    prediction of performance will be conducted DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. PA# TBD 24 • Empiricism ...Strategic Missile A&S Approach Overview Empiricism DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. PA# TBD...Extrapolation Simulated Data 25 • Empiricism cannot always predict future state • Mechanistic method enables enhanced predictions • Mechanistic will not be

  16. White Sands Missile Range 2011 Drinking Water Quality Report

    Science.gov (United States)

    2012-01-01

    acerca de su agua potable . Haga que alguien lo traduzca para usted, o hable con alguien que lo entienda. Main Post White Sands Missile Range 2011...standards. What is This Water Quality Report? Este informe contiene informacion importante acerca de su agua potable . Haga que alguien lo traduzca

  17. Guide for Transitioning Army Missile Systems From Development to Production.

    Science.gov (United States)

    1981-07-01

    Technology Division, System Ngnesriagl rectorae * (DIMAwl-) lhe availability of appropriate mnufaoturing Preses pml o ut plays an Important role in the...cost reduction ideas . 3 e! M. atumtion0 !eM . One missile system currently In fall *"I* develoluft, MM9 bee foregone the traditional engineering

  18. A Prototype Fibre Optic Gyroscope for Missile Guidance Applications,

    Science.gov (United States)

    This paper describes the design of a prototype fibre optic gyro, which is intended for missile guidance applications. Important design constraints...beam-splitter. Serrodyne phase ramps are impressed on the light propagating round the fibre optic sensor coil connected to the integrated optics chip

  19. The ballistic performance of the bombard Mons Meg

    Directory of Open Access Journals (Sweden)

    Ian Lewtas

    2016-04-01

    Full Text Available The bombard Mons Meg, located in Edinburgh Castle, with a diameter of 19 inches (48 cm, was one of the largest calibre cannons ever built. Constructed in 1449 and presented to King James II of Scotland in 1454, Mons Meg was used in both military and ceremonial roles in Scotland until its barrel burst in 1680. This paper examines the history, internal, external and terminal ballistics of the cannon and its shot. The likely muzzle velocity was estimated by varying the propellant type and the cannon profile was investigated to identify weak spots in the design that may have led to its failure. Using the muzzle velocity calculated from the internal ballistics, simulations were performed with granite and sandstone shot for varying launch angle and ground temperature. The likely trajectory and range of the cannonballs are described. The internal and external ballistics informed the initial conditions of the terminal ballistic impact scenarios. The performance of the cannonball against both period and modern targets, in the form of a pseudo-castle wall and a monolithic concrete target, respectively, were simulated and are presented and discussed.

  20. Models of Ballistic Propagation of Heat at Low Temperatures

    Science.gov (United States)

    Kovács, R.; Ván, P.

    2016-09-01

    Heat conduction at low temperatures shows several effects that cannot be described by the Fourier law. In this paper, the performance of various theories is compared in case of wave-like and ballistic propagation of heat pulses in NaF.

  1. The ballistic performance of the bombard Mons Meg

    Institute of Scientific and Technical Information of China (English)

    Ian LEWTAS; Rachael MCALISTER; Adam WALLIS; Clive WOODLEY; Ian CULLIS

    2016-01-01

    The bombard Mons Meg, located in Edinburgh Castle, with a diameter of 19 inches (48 cm), was one of the largest calibre cannons ever built. Constructed in 1449 and presented to King James II of Scotland in 1454, Mons Meg was used in both military and ceremonial roles in Scotland until its barrel burst in 1680. This paper examines the history, internal, external and terminal ballistics of the cannon and its shot. The likely muzzle velocity was estimated by varying the propellant type and the cannon profile was investigated to identify weak spots in the design that may have led to its failure. Using the muzzle velocity calculated from the internal ballistics, simulations were performed with granite and sandstone shot for varying launch angle and ground temperature. The likely trajectory and range of the cannonballs are described. The internal and external ballistics informed the initial conditions of the terminal ballistic impact scenarios. The performance of the cannonball against both period and modern targets, in the form of a pseudo-castle wall and a monolithic concrete target, respectively, were simulated and are presented and discussed.

  2. On the Trajectories of Projectiles Depicted in Early Ballistic Woodcuts

    Science.gov (United States)

    Stewart, Sean M.

    2012-01-01

    Motivated by quaint woodcut depictions often found in many late 16th and 17th century ballistic manuals of cannonballs fired in air, a comparison of their shapes with those calculated for the classic case of a projectile moving in a linear resisting medium is made. In considering the asymmetrical nature of such trajectories, the initial launch…

  3. The application of computed tomography in wound ballistics research

    Science.gov (United States)

    Tsiatis, Nick; Moraitis, Konstantinos; Papadodima, Stavroula; Spiliopoulou, Chara; Kelekis, Alexis; Kelesis, Christos; Efstathopoulos, Efstathios; Kordolaimi, Sofia; Ploussi, Agapi

    2015-09-01

    In wound ballistics research there is a relationship between the data that characterize a bullet and the injury resulted after shooting when it perforates the human body. The bullet path in the human body following skin perforation as well as the damaging effect cannot always be predictable as they depend on various factors such as the bullet's characteristics (velocity, distance, type of firearm and so on) and the tissue types that the bullet passes through. The purpose of this presentation is to highlight the contribution of Computed Tomography (CT) in wound ballistics research. Using CT technology and studying virtual “slices” of specific areas on scanned human bodies, allows the evaluation of density and thickness of the skin, the subcutaneous tissue, the muscles, the vital organs and the bones. Density data taken from Hounsfield units can be converted in g/ml by using the appropriate software. By evaluating the results of this study, the anatomy of the human body utilizing ballistic gel will be reproduced in order to simulate the path that a bullet follows. The biophysical analysis in wound ballistics provides another application of CT technology, which is commonly used for diagnostic and therapeutic purposes in various medical disciplines.

  4. Optimal control of the ballistic motion of Airy beams.

    Science.gov (United States)

    Hu, Yi; Zhang, Peng; Lou, Cibo; Huang, Simon; Xu, Jingjun; Chen, Zhigang

    2010-07-01

    We demonstrate the projectile motion of two-dimensional truncated Airy beams in a general ballistic trajectory with controllable range and height. We show that the peak beam intensity can be delivered to any desired location along the trajectory as well as repositioned to a given target after displacement due to propagation through disordered or turbulent media.

  5. Chicxulub High-Altitude Ballistic Ejecta from Central Belize

    Science.gov (United States)

    Pope, K. O.; Ocampo, A. C.

    2000-01-01

    Chicxulub ejecta are found in central Belize, 475 km southeast of the impact crater center. These deposits are ballistic ejecta launched along high-altitude trajectories above the atmosphere and deposited as a discontinuous sheet on the terminal Cretaceous land surface.

  6. Hardware in Loop Simulation for Missile Guidance and Control Systems

    Directory of Open Access Journals (Sweden)

    S. K. Chaudhuri

    1997-07-01

    Full Text Available The purpose of the guidance law is to determine appropriate missile flight path dynamics to achieve mission objective in an efficient manner based on navigation information. Today, guided missiles which are aerodynamically unstable or non-linear in all or part of the flight envelopes need control systems for stability as well as for steering. Many classical guidance and control laws have been used for tactical missiles with varying degrees of performance, complexity and seeker/sensor requirements. Increased accuracy requirements and more dynamic tactics of modern warfare demand improvement of performance which is a trade-off between sophisticated hardware and more sophisticated software. To avoid increase in cost by hardware sophistication, today's trend is to exploit new theoretical methods and low cost high speed microprocessor techniques. Missile test flights are very expensive. The missile system with its sophisticated software and hardware is not reusable after a test launch. Hardware-in-loop Simulation (HILS facilities and methodology form a well integrated system aimed at transforming a preliminary guidance and control system design to flight software and hardware with trajectory right from lift-off till its impact. Various guidance and control law studies pertaining to gathering basket and stability margins, pre-flight, post-flight analyses and validation of support systems have been carried out using this methodology. Nearly full spectrum of dynamically accurate six-degrees-of-freedom (6-DOF model of missile systems has been realised in the HILS scenario. The HILS facility allows interconnection of missile hardware in flight configuration. Pre-flight HILS results have matched fairly well with actual flight trial results. It was possible to detect many hidden defects in the onboard guidance and control software as well as in hardware during HILS. Deficiencies in model, like tail-wag-dog (TWD, flexibility, seeker dynamics and defects in

  7. Modeling and Simulation of Control Actuation System with Fuzzy-PID Logic Controlled Brushless Motor Drives for Missiles Glider Applications

    Science.gov (United States)

    Muniraj, Murali; Arulmozhiyal, Ramaswamy

    2015-01-01

    A control actuation system has been used extensively in automotive, aerospace, and defense applications. The major challenges in modeling control actuation system are rise time, maximum peak to peak overshoot, and response to nonlinear system with percentage error. This paper addresses the challenges in modeling and real time implementation of control actuation system for missiles glider applications. As an alternative fuzzy-PID controller is proposed in BLDC motor drive followed by linkage mechanism to actuate fins in missiles and gliders. The proposed system will realize better rise time and less overshoot while operating in extreme nonlinear dynamic system conditions. A mathematical model of BLDC motor is derived in state space form. The complete control actuation system is modeled in MATLAB/Simulink environment and verified by performing simulation studies. A real time prototype of the control actuation is developed with dSPACE-1104 hardware controller and a detailed analysis is carried out to confirm the viability of the proposed system. PMID:26613102

  8. Modeling and Simulation of Control Actuation System with Fuzzy-PID Logic Controlled Brushless Motor Drives for Missiles Glider Applications

    Directory of Open Access Journals (Sweden)

    Murali Muniraj

    2015-01-01

    Full Text Available A control actuation system has been used extensively in automotive, aerospace, and defense applications. The major challenges in modeling control actuation system are rise time, maximum peak to peak overshoot, and response to nonlinear system with percentage error. This paper addresses the challenges in modeling and real time implementation of control actuation system for missiles glider applications. As an alternative fuzzy-PID controller is proposed in BLDC motor drive followed by linkage mechanism to actuate fins in missiles and gliders. The proposed system will realize better rise time and less overshoot while operating in extreme nonlinear dynamic system conditions. A mathematical model of BLDC motor is derived in state space form. The complete control actuation system is modeled in MATLAB/Simulink environment and verified by performing simulation studies. A real time prototype of the control actuation is developed with dSPACE-1104 hardware controller and a detailed analysis is carried out to confirm the viability of the proposed system.

  9. Ballistic parameters and trauma potential of pistol crossbows.

    Science.gov (United States)

    Frank, Matthias; Schikorr, Wolfgang; Tesch, Ralf; Werner, Ronald; Hanisch, Steffen; Peters, Dieter; Ekkernkamp, Axel; Bockholdt, Britta; Seifert, Julia

    2013-07-01

    Hand-held pistol crossbows, which are smaller versions of conventional crossbows, have recently increased in popularity. Similar to conventional crossbows, life threatening injuries due to bolts discharged from pistol crossbows are reported in forensic and traumatological literature. While the ballistic background of conventional crossbows is comprehensively investigated, there are no investigations on the characteristic ballistic parameters (draw force, potential energy, recurve factor, kinetic energy, and efficiency) of pistol crossbows. Two hand-held pistol crossbows (Barnett Commando and Mini Cross Bow, rated draw force 362.9 N or 80 lbs) were tested. The maximum draw force was investigated using a dynamic tensile testing machine (TIRAtest 2705, TIRA GmbH). The potential energy was determined graphically by polynomial regression as area under the force-draw curve. External ballistic parameters of the bolts discharged from pistol crossbows were measured using a redundant ballistic speed measurement system (Dual-BMC 21a and Dual-LS 1000, Werner Mehl Kurzzeitmesstechnik). The average maximum draw force was 190.3 and 175.6 N for the Barnett and Mini Cross Bow, respectively. The corresponding total energy expended was 10.7 and 11 J, respectively. The recurve factor was calculated to be 0.705 and 1.044, respectively. Average bolt velocity was measured 43 up to 52 m/s. The efficiency was calculated up to 0.94. To conclude, this work provides the pending ballistic data on this special subgroup of crossbows which operate on a remarkable low kinetic energy level. Furthermore, it demonstrates that the nominal draw force pretended in the sales brochure is grossly exaggerated.

  10. Signs of muscle thixotropy during human ballistic wrist joint movements.

    Science.gov (United States)

    Axelson, H W

    2005-11-01

    A study was conducted on healthy subjects to determine whether voluntary ballistic wrist flexion movements are influenced by immediately preceding conditioning of the forearm muscles. Single rapid wrist flexion movements were made in response to an auditory "Go" signal. Rectified surface EMG was recorded from wrist flexors and extensors, and joint position was measured by a goniometer. The movements were preceded (2-3 s) by four different conditioning routines: 40-s rest (Rest), 10-s voluntary alternating wrist joint flexion and extension movements (Osc), and 10 s of 25 degrees weak isometric wrist extensor (Ext) or flexor contractions (Flex). When subjects made ballistic movements after Osc compared with Rest, peak velocity was higher (P = 0.02) and movement time shorter (P = 0.06), but there was no difference (P = 0.83) in motor reaction time (time between the onset of the first agonist burst and movement onset). If the movements were preceded by Ext compared with Flex, motor reaction time was longer (P = 0.01), indicating a longer electromechanical delay. There were no indications that postconditioning differences in agonist or antagonist muscle activity could explain the results. It was also demonstrated that, after Rest, peak velocity was lower (P < 0.01) for the first than for the second of a series of repetitive ballistic movements. The observations corresponded to results from passive experiments in which the median nerve was electrically stimulated. In conclusion, history-dependent (thixotropic) changes in skeletal muscle resistance seem to have implications for voluntary ballistic wrist movements. The study also provided evidence that muscle conditioning influences the central nervous reaction time preceding ballistic contractions.

  11. Theater Missile Defense Extended Test Range Supplemental Environmental Impact Statement - Eglin Gulf Test Range. Volume 2

    Science.gov (United States)

    1998-07-01

    Gulf of Mexico .............................3-297 3.2.3-3 Locations of Cetaceans (Whales and Dolphins) .....................................3-299... Cetaceans on the Upper Continental Slope in the North-Central Gulf of Mexico,” Fishery Bulletin, No. 92: 773-786. Myers, R. and J. Ewel, 1992. Ecosystems...on Levels of Environmental Noise Requisite to Protect Public Health and Welfare with an Adequate Margin of Safety, March. U.S. Environmental

  12. The State of Integrated Air and Missile Defense Held in Laurel, Maryland on July 14, 2011

    Science.gov (United States)

    2011-07-14

    ALTBMD Program Phases ALTBMD PO – July 2011 7NATO UNCLASSIFIED Lower Tier IOC Lower Tier FOC Interim Capability ( InCa ) Upper Tier Phase Capability Date... InCa 1 Basic TMD Planning and Tasking Training Completed Operational Spring 2010 InCa 2 Integrated coherent planning with interface to national...UNCLASSIFIED Interim Capability ( InCa ) • After the announcement of a delay of a component of the ALTBMD programme in fall 2008, the NATO Military

  13. Joint Land Attack Cruise Missile Defense Elevated Netted Sensor System (JLENS) Land-Based Testing Sites

    Science.gov (United States)

    2007-09-01

    halophytic (plants adapted to living in a saline environment) habitat type with red swampfire, a native annual forb and iodine bush, a native perennial...sedges, iodine bush, red swampfire, Gard- ner saltbush, rabbitbrush, and greasewood. Non-native plants include salt cedar, Russian olive, kochia, and...issues, federal agencies must identify and address disproportionately high and adverse effects of federal projects on the health or environment of

  14. Russian Policies on Strategic Missile Defense and Nuclear Arms Control: A Realist Interpretation

    Science.gov (United States)

    2014-09-01

    principles of the indivisibility of Allied security and solidarity .”78 Russia consistently seeks to undercut these principles. “Divide and rule” is...2014, http://data.worldbank.org/indicator/NY.GDP.MKTP.CD. 221 “SIPRI Military Expenditure Database ,” Stockholm International Peace Research...National Security Strategy to 2020.” Russian Analytical Digest, no.62 (June 18, 2009). “SIPRI Military Expenditure Database .” Stockholm International

  15. Patriot missile defense systems might be deployed in Baltics - German general

    Index Scriptorium Estoniae

    2016-01-01

    Saksamaa ja Holland testivad oktoobris Patriot-tüüpi rakette. Saksa brigaadikindral Michael Gschossmanni sõnul võidakse testimisele tulevaid õhutõrjesüsteeme paigutada tulevikus Balti riikidesse või Poola

  16. Missile Defensive Systems and the Civil Reserve Air Fleet (Maxwell Paper, Number 45)

    Science.gov (United States)

    2009-08-01

    Illinois: Pope AFB, North Carolina; Little Rock AFB, Arkansas; and Davis-Monthan AFB, Arizona. Colonel Downing entered the Air Force as a distinguished...electronic warfare officer in the EC-130 and instructor/flight examiner navigator in the C-130. He holds the master of military arts and sciences in...Kosovo SA-7 (r) Kurdistan Workers Party Turkey SA-7 (c), Stinger (c) Liberation Tigers of Tamil Eelam Sri Lanka SA-7 (r), SA-14 (r), HN-5 (c) Oromo

  17. Job Language Performance Requirements for MOS 16P. Short Range Air Defense Artillery Missile Crewman.

    Science.gov (United States)

    1982-10-01

    resuscitation causes obstruction certain pause checking pinched -ieck pliable ,;nest position children procedure - circulation pulse clear ratio clothing...dtfcnse surface sandbags, operational exposue guidan tall grass shielding radiometer tend standard reading woods super user vehicle S -Sr (: e i,0 Vi .- w...M-40 packed ir fixed - instruction sheet pairs of fragment spray insulation tape plug functioning kill zone groove of the sight lead of an enemy

  18. Missile Defense: Opportunities Exist to Reduce Acquisition Risk and Improve Reporting on System Capabilities

    Science.gov (United States)

    2015-05-01

    include sufficient margin in its test schedule based on recent test outcomes and forecasted testing demands so it could better meet its testing goals.22...later cause corrosion , which could have far reaching effects because of the component’s power and data interfaces with the kill vehicle’s IMU. The...rocket motor (TSRM) components. The TSRM is used to lift the interceptor out of the atmosphere and direct the warhead to the target. This component

  19. Navy Shipboard Lasers for Surface, Air, and Missile Defense: Background and Issues for Congress

    Science.gov (United States)

    2013-06-27

    community that extends back to the 1970s. The danger, of course, is that this poor past performance could lead decision-makers to downplay or ignore... eyesight devices. The United States ratified Protocol IV on December 23, 2008, and it entered into force for the United States on July 21, 2009.99 DOD...prohibiting the use of lasers specifically designed to cause permanent blindness to the naked eye or to the eye with corrective eyesight devices. Article-by

  20. Theater Missile Defense: Indigenous Programs and Interest Among U.S. Friends and Allies,

    Science.gov (United States)

    2007-11-02

    Secretary-General, Sergio Balanzino, and is charged with coordinating the activities of the other two committees. CRS-18 Previously, then-Under...Paper, in addition to Franco -Russian corporate negotiations and French exploratory funding for TMD options, underscore a new French willingness to

  1. Recognizing plant defense priming

    NARCIS (Netherlands)

    Martinez-Medina, A.; Flors, V.; Heil, M.; Mauch-Mani, B.; Pieterse, C.M.J.; Pozo, M.J.; Ton, J.; Van Dam, N.M.; Conrath, U.

    2016-01-01

    Defense priming conditions diverse plant species for the superinduction of defense, often resulting in enhanced pest and disease resistance and abiotic stress tolerance. Here, we propose a guideline that might assist the plant research community in a consistent assessment of defense priming in plant

  2. Flight testing of the AIM/RIM-7M missile, preflight analysis

    Science.gov (United States)

    Hicks, W.; Greenberg, E.

    1981-11-01

    The AIM/RIM-7M missile is the most recent version of the AIM-7 missile series. It is in the preproduction phase and has completed most of the preproduction flight test evaluation. A description is presented of the preflight simulation techniques used, taking into account the value of the techniques in predicting the results of actual flights. The AIM/RIM-7M is a semiactive, radar-guided homing missile with sophisticated onboard digital processing. It may be launched from either an aircraft or a surface system. To a large degree, the AIM/RIM-7M represents problems typical of all guided missiles. The described techniques are directly applicable to radar-guided missiles and generically to all types of guided missiles. Attention is given to simulation bay activities, the anechoic chamber, aspects of RF control, the target array, computer models, aspects of preflight simulations, and the test setup.

  3. How the Army Runs: A Senior Leader Reference Handbook, 2015-2016

    Science.gov (United States)

    2015-08-28

    Army Corrections Command (USACC); Defense Forensics and Biometrics Agency (DFBA). (n) The Judge Advocate General (TJAG): U.S. Army Legal Services...BMDR Ballistic Missile Defense Review BMIS-T Battlefield Medical Information-Theater BOD Board of Directors BOD Broadcast Operations

  4. Navy TAO(X) Oiler Shipbuilding Program: Background and Issues for Congress

    Science.gov (United States)

    2015-12-17

    Bulk Of LX(R),” Inside the Navy, February 23, 2015 (posted online February 20, 2015). 33 Government Accountability Office, Defense Acquisitions...smaller fleet, new missions, such as ballistic missile defense and counter- piracy , and improving adversary A2/AD capabilities cause strike groups

  5. ARMS CONTROL: U.S. Efforts to Control the Transfer of Nuclear-Capable Missile Technology

    Science.gov (United States)

    2015-12-11

    risk of diversion is an important part of its analysis, Commerce focuses its reviews on certain countries that are developing nuclear-capable missiles...ogy to countries developing nuclear-capable missile systems. Our work was conducted in the United States at the Departments of State, Commerce , and...the MTCR in halting the transfer of MTCR-related systems and technology to countries developing nuclear-capable missile systems. The objectives, scope

  6. Possible influences on bullet trajectory deflection in ballistic gelatine.

    Science.gov (United States)

    Riva, Fabiano; Kerkhoff, Wim; Bolck, Annabel; Mattijssen, Erwin J A T

    2017-02-01

    The influence of the distance to the top and bottom of a gelatine block and to bullet tracks from previously fired shots on a bullet's trajectory, when passing through ballistic gelatine, was studied. No significant difference in deflection was found when trajectories of 9mm Luger bullets, fired at a 3.5cm distance to the top and bottom of a gelatine block and to bullet tracks from previously fired shots, were compared to trajectories of bullets fired 7cm or more away from any of the aforementioned aspects. A surprisingly consistent 6.5° absolute deflection angle was found when these bullets passed through 22.5 to 23.5cm of ballistic gelatine. The projection angle, determined by the direction of the deflection, appeared to be random. The consistent absolute angle, in combination with the random projection angle, resulted in a cone-like deflection pattern.

  7. The Ballistic Pressure Wave Theory of Handgun Bullet Incapacitation

    CERN Document Server

    Courtney, Michael

    2008-01-01

    This paper presents a summary of seven distinct chains of evidence, which, taken together, provide compelling support for the theory that a ballistic pressure wave radiating outward from the penetrating projectile can contribute to wounding and incapacitating effects of handgun bullets. These chains of evidence include the fluid percussion model of traumatic brain injury, observations of remote ballistic pressure wave injury in animal models, observations of rapid incapacitation highly correlated with pressure magnitude in animal models, epidemiological data from human shootings showing that the probability of incapacitation increases with peak pressure magnitude, case studies in humans showing remote pressure wave damage in the brain and spinal cord, and observations of blast waves causing remote brain injury.

  8. A ballistic gate-tunable contact junction in graphene

    Science.gov (United States)

    Wilmart, Quentin; Rosticher, Michael; Boukhicha, Mohamed; Inhofer, Andreas; Morfin, Pascal; Feve, Gwendal; Berroir, Jean-Marc; Placais, Bernard; Equipe de Physique Mésoscopique Team

    2015-03-01

    Field-effect control of carrier is very efficient in graphene and allows controlling the doping profile with a great accuracy and high spatial resolution. This is needed if one wants to implement Dirac fermion optics experiments or simply to improve the performance of graphene devices. In this work we realize graphene transistors equipped with a set of local back-gates that provide control of local electric fields in the 108 V / m range at the 10 nanometer scale. In particular we demonstrate ballistic contact junctions using transistors with independent channel and contact back-gates. We shall discuss the possibilities offered by this technology for ballistic electronic and opto-electronic applications.

  9. Learning without knowing: subliminal visual feedback facilitates ballistic motor learning

    DEFF Research Database (Denmark)

    Lundbye-Jensen, Jesper; Leukel, Christian; Nielsen, Jens Bo

    During daily life we are constantly bombarded by sensory input providing information on the state of our body and the surrounding world. Although we do not consciously perceive all sensory inputs, these may nevertheless have consequences for our future behavior (e.g. Goodale and Milner...... was on the screen during learning. Despite of this, there was a significantly larger learning effect in the subliminal 13-26 ms group compared to the subliminal 0 ms group. In conclusion, the results demonstrate that in addition to supraliminal feedback, subliminal feedback, which was not consciously perceived...... by the learner, indeed facilitated ballistic motor learning. This effect likely relates to multiple (conscious versus unconscious) processing of visual feedback and to the specific neural circuitries involved in optimization of ballistic motor performance....

  10. Ballistic transport in Saturn's rings - An analytic theory

    Science.gov (United States)

    Lissauer, J. J.

    1984-01-01

    Ejecta from impacts of micrometeoroids on Saturn's ring particles will, in most cases, remain in orbit about Saturn and eventually be reaccreted by the rings, possibly at a different radial location. The resulting mass transport has been suggested as the cause of some of the features observed in Saturn's rings. Previous attempts to model this transport have used numerical simulations which have not included the effects of the angular momentum transport coincident with mass transport. An analytical model for ballistic mass transport in Saturn's rings is developed. The model includes the effects of angular momentum advection and shows that the net material movement due to angular momentum advection is comparable to that caused by direct ballistic mass transport.

  11. Assessment of Containment Structures Against Missile Impact Threats

    Institute of Scientific and Technical Information of China (English)

    LI Q M

    2006-01-01

    In order to ensure the highest safety requirements,nuclear power plant structures (the containment structures,the fuel storages and transportation systems) should be assessed against all possible internal and external impact threats.The internal impact threats include kinetic missiles generated by the failure of high pressure vessels and pipes,the failure of high speed rotating machineries and accidental drops.The external impact threats may come from airborne missiles,aircraft impact,explosion blast and fragments.The impact effects of these threats on concrete and steel structures in a nuclear power plant are discussed.Methods and procedures for the impact assessment of nuclear power plants are introduced.Recent studies on penetration and perforation mechanics as well as progresses on dynamic properties of concrete-like materials are presented to increase the understanding of the impact effects on concrete containment structures.

  12. Design and development of Propulsion System for Antitank Guided Missile

    Directory of Open Access Journals (Sweden)

    T. Mohan Reddy

    1995-07-01

    Full Text Available A Propulsion system is designed and developed for the third generation antitank guided missile (ATGM. It consists of a separate booster and sustainer. Booster is ahead of sustainer, having four nozzles canted to the missile axis. Sustainer discharges through a supersonic blast tube. Low smoke, high energy nitramine propellant for this propulsion system developed by the High Energy Materials Research Laboratory (HEMRL, Pune, has been successfully flight-tested. The booster grain is tube-in-tube configuration with end inhibition and the sustainer grain is of end burning configuration. High strength aluminium alloy, HE-15, is used for rocket motor components. Glass-phenolic composite ablative material is used for thermal protection of motors and high density graphite is used for nozzle throats. The design considerations and approach, including grain configuration, nozzle, and ignitersare briefly discussed. The propulsion system has been extensively tested in static tests and in flights, establishing the satisfactory performance of the system.

  13. BTT autopilot design for agile missiles with aerodynamic uncer tainty

    Institute of Scientific and Technical Information of China (English)

    Yueyue Ma; Jie Guo; Shengjing Tang

    2015-01-01

    The approach to the synthesis of autopilot with aerody-namic uncertainty is investigated in order to achieve large maneu-verability of agile missiles. The dynamics of the agile missile with reaction-jet control system (RCS) are presented. Subsequently, the cascade control scheme based on the bank-to-turn (BTT) steering technique is described. To address the aerodynamic un-certainties encountered by the control system, the active distur-bance rejection control (ADRC) method is introduced in the autopi-lot design. Furthermore, a compound control er, using extended state observer (ESO) to online estimate system uncertainties and calculate derivative of command signals, is designed based on dynamic surface control (DSC). Nonlinear simulation results show the feasibility of the proposed approach and validate the robust-ness of the control er with severe unmodeled dynamics.

  14. Discrete Sliding Mode Control for Hypersonic Cruise Missile

    Directory of Open Access Journals (Sweden)

    Yong Hua Fan

    2016-01-01

    Full Text Available A discrete variable structure control (DVSC with sliding vector is presented to track the velocity and acceleration command for a hypersonic cruise missile. In the design an integrator is augmented to ensure the tracking with zero steady-state errors. Furthermore the sliding surface of acceleration is designed using the error of acceleration and acceleration rate to avoid the singularity of control matrix. A proper power rate reaching law is utilized in this proposal; therefore the state trajectory from any initial point can be driven into the sliding surface. Besides, in order to validate the robustness of controller, the unmolded dynamic and parameter disturbance of the missile are considered. Through simulation the proposed controller demonstrates good performance in tracking velocity and acceleration command.

  15. Hybrid composite laminates reinforced with Kevlar/carbon/glass woven fabrics for ballistic impact testing.

    Science.gov (United States)

    Randjbaran, Elias; Zahari, Rizal; Jalil, Nawal Aswan Abdul; Majid, Dayang Laila Abang Abdul

    2014-01-01

    Current study reported a facile method to investigate the effects of stacking sequence layers of hybrid composite materials on ballistic energy absorption by running the ballistic test at the high velocity ballistic impact conditions. The velocity and absorbed energy were accordingly calculated as well. The specimens were fabricated from Kevlar, carbon, and glass woven fabrics and resin and were experimentally investigated under impact conditions. All the specimens possessed equal mass, shape, and density; nevertheless, the layers were ordered in different stacking sequence. After running the ballistic test at the same conditions, the final velocities of the cylindrical AISI 4340 Steel pellet showed how much energy was absorbed by the samples. The energy absorption of each sample through the ballistic impact was calculated; accordingly, the proper ballistic impact resistance materials could be found by conducting the test. This paper can be further studied in order to characterise the material properties for the different layers.

  16. Hybrid Composite Laminates Reinforced with Kevlar/Carbon/Glass Woven Fabrics for Ballistic Impact Testing

    Directory of Open Access Journals (Sweden)

    Elias Randjbaran

    2014-01-01

    Full Text Available Current study reported a facile method to investigate the effects of stacking sequence layers of hybrid composite materials on ballistic energy absorption by running the ballistic test at the high velocity ballistic impact conditions. The velocity and absorbed energy were accordingly calculated as well. The specimens were fabricated from Kevlar, carbon, and glass woven fabrics and resin and were experimentally investigated under impact conditions. All the specimens possessed equal mass, shape, and density; nevertheless, the layers were ordered in different stacking sequence. After running the ballistic test at the same conditions, the final velocities of the cylindrical AISI 4340 Steel pellet showed how much energy was absorbed by the samples. The energy absorption of each sample through the ballistic impact was calculated; accordingly, the proper ballistic impact resistance materials could be found by conducting the test. This paper can be further studied in order to characterise the material properties for the different layers.

  17. Ballistic Thermal Transistor of Dielectric Four-terminal Nanostructures

    OpenAIRE

    Yang, Ping; Hu, Bambi

    2009-01-01

    We report a theoretical model for a thermal transistor in dielectric four-terminal nanostructures based on mesoscopic ballistic phonon transport, in which a steady thermal flow condition of system is obtained to set up the temperature field effect of gate. In the environment, thermal flow shows the transisting behaviors at low temperatures: saturation, asymmetry, and rectification. The phenomena can be explained reasonably by the nonlinear variation of the temperature dependence of propagatin...

  18. Pseudomagnetic fields and ballistic transport in a suspended graphene sheet.

    Science.gov (United States)

    Fogler, M M; Guinea, F; Katsnelson, M I

    2008-11-28

    We study a suspended graphene sheet subject to the electric field of a gate underneath. We compute the elastic deformation of the sheet and the corresponding effective gauge field, which modifies the electronic transport. In a clean system the two-terminal conductance of the sample is reduced below the ballistic limit and is almost totally suppressed at low carrier concentrations in samples under tension. Residual disorder restores a small finite conductivity.

  19. Development of a Two-Dimensional Implicit Interior Ballistics Code

    Science.gov (United States)

    1980-01-01

    the universal gas constant, W is the gas molecular weight, u m and n is the covolume factor, which is composition dependent . Following Gough (Ref...c is dependent on the gas composition but not temperature. v The static enthalpy is then h = p e + p The specific heat at constant pressure is...Gun Interior Ballistics Transient Combustion Time- dependent Adaptive Grid 20, ABST’RACT (Cazrt&au:e _. .. ._._ lliO 11 ~ llltld ldenllly by block

  20. Model of risk assessment under ballistic statistical tests

    Science.gov (United States)

    Gabrovski, Ivan; Karakaneva, Juliana

    The material presents the application of a mathematical method for risk assessment under statistical determination of the ballistic limits of the protection equipment. The authors have implemented a mathematical model based on Pierson's criteria. The software accomplishment of the model allows to evaluate the V50 indicator and to assess the statistical hypothesis' reliability. The results supply the specialists with information about the interval valuations of the probability determined during the testing process.

  1. Ballistics Modeling for Non-Axisymmetric Hypervelocity Smart Bullets

    Science.gov (United States)

    2014-06-03

    rapidly spinning rifle bullet [2]. However, the Magnus moment can be important in terms of stability. The Magnus moment is the one effect we consider...is the result when the magnus moment is neglected. Although the magnus effect is small, the effect of neglecting it is discernable. The solution 19...11 2. Spin and Pitch Damping 11 3. Magnus Moment 12 IV. CFD Simulations and Ballistic Trajectories 12 A. CFD Modeling of a Standard Bullet 12 B

  2. Ballistic anomalies in solid rocket motors due to migration effects

    Science.gov (United States)

    Pröbster, M.; Schmucker, R. H.

    Double base and composite propellants are generally used for rocket motors, whereby double base propellants basically consist of nitrocellulose plasticized with an explosive plasticizer, mostly nitroglycerine, and in some cases with an additional inert plasticizer and ballistic additives. Composite propellants consist of an oxidizer like ammonium perchlorate and of aluminum, binder and plasticizer and often contain liquid or solid burning rate catalysts. A common feature of both propellants is that they contain smaller or larger amounts of chemically unbonded liquid species which tend to migrate. If these propellants loose part of the plasticizer by migration into the insulation layer, not only will there be a change in mechanical propellant properties but also the bond between propellant and insulation may degrade. However, depending on the severity of these effects, the change in the ballistic properties of the propellant grain caused by plasticizer migration may be of even more importance. In the past, most emphasis was placed on the behaviour of end-burning configurations. However, more recent theoretical and experimental studies revealed that not only for end-burning grain configurations but also for internal burning configurations there is a common effect which is responsible for ballistic anomalies: migration of liquid species from the propellant into the insulation. By using a plasticizer equilibrated insulation in an internal burning configuration the liquid species migration and thus the previously observed ballistic anomalies are avoided. Using this approach for end-burning configurations provides similar positive results. The various factors affecting plasticizer migration are studied and discussed, and several methods to prevent liquid species migration are described as well as methods to obtain plasticizer resistant insulations.

  3. Ballistic Evaluation of Magnesium Alloy AZ31B

    Science.gov (United States)

    2007-04-01

    S. Burkins, and William A. Gooch Weapons and Materials Research Directorate, ARL Richard D. DeLorme Magnesium Elektron North America, Inc...ballistic properties. In order to fill this gap, the U.S. Army Research Laboratory (ARL) and Magnesium Elektron North America (MENA), Inc., conducted a...plate (H24 condition). The magnesium plate was alloyed, cast, rolled, thermally treated and tensile tested by Magnesium Elektron North America (MENA

  4. Going ballistic:dealing with guns, gangs and knives

    OpenAIRE

    2008-01-01

    Murders involving knives and firearms never fail to grab the headlines, yet they are relatively rare. Gun crime represents only 0.4% of all recorded crime in England and Wales. The public are often sceptical, however, when they read figures such as this – and they have reason to be so. Going Ballistic's findings support four primary arguments: that official crime figures do not reflect the experiences of many communities in England and Wales; that information and intelligence sharing between ...

  5. Theory of vortices in hybridized ballistic/diffusive-band superconductors

    Science.gov (United States)

    Tanaka, K.; Eschrig, M.; Agterberg, D. F.

    2007-06-01

    We study the electronic structure in the vicinity of a vortex in a two-band superconductor in which the quasiparticle motion is ballistic in one band and diffusive in the other. This study is based on a model appropriate for such a case, that we have introduced recently [Tanaka , Phys. Rev. B 73, 220501(R) (2006)]. We argue that in the two-band superconductor MgB2 , such a case is realized. Motivated by the experimental findings on MgB2 , we assume that superconductivity in the diffusive band is “weak,” i.e., mostly induced. We examine intriguing features of the order parameter, the current density, and the vortex core spectrum in the “strong” ballistic band under the influence of hybridization with the “weak” diffusive band. Although the order parameter in the diffusive band is induced, the characteristic length scales in the two bands differ due to Coulomb interactions. The current density in the vortex core is dominated by the contribution from the ballistic band, while outside the core the contribution from the diffusive band can be substantial, or even dominating. The current density in the diffusive band has strong temperature dependence, exhibiting the Kramer-Pesch effect when hybridization is strong. A particularly interesting feature of our model is the possibility of additional bound states near the gap edge in the ballistic band, that are prominent in the vortex center spectra. This contrasts with the single band case, where there is no gap-edge bound state in the vortex center. We find the above-mentioned unique features for parameter values relevant for MgB2 .

  6. Chaotic and ballistic dynamics in time-driven quasiperiodic lattices.

    Science.gov (United States)

    Wulf, Thomas; Schmelcher, Peter

    2016-04-01

    We investigate the nonequilibrium dynamics of classical particles in a driven quasiperiodic lattice based on the Fibonacci sequence. An intricate transient dynamics of extraordinarily long ballistic flights at distinct velocities is found. We argue how these transients are caused and can be understood by a hierarchy of block decompositions of the quasiperiodic lattice. A comparison to the cases of periodic and fully randomized lattices is performed.

  7. Chaotic and ballistic dynamics in time-driven quasiperiodic lattices

    CERN Document Server

    Wulf, Thomas

    2016-01-01

    We investigate the nonequilibrium dynamics of classical particles in a driven quasiperiodic lattice based on the Fibonacci sequence. An intricate transient dynamics of extraordinarily long ballistic flights at distinct velocities is found. We argue how these transients are caused and can be under- stood by a hierarchy of block decompositions of the quasiperiodic lattice. A comparison to the cases of periodic and fully randomized lattices is performed.

  8. Chaotic and ballistic dynamics in time-driven quasiperiodic lattices

    Science.gov (United States)

    Wulf, Thomas; Schmelcher, Peter

    2016-04-01

    We investigate the nonequilibrium dynamics of classical particles in a driven quasiperiodic lattice based on the Fibonacci sequence. An intricate transient dynamics of extraordinarily long ballistic flights at distinct velocities is found. We argue how these transients are caused and can be understood by a hierarchy of block decompositions of the quasiperiodic lattice. A comparison to the cases of periodic and fully randomized lattices is performed.

  9. Pneumatic capillary gun for ballistic delivery of microparticles

    CERN Document Server

    Rinberg, D; Groisman, A; Rinberg, Dmitry; Simonnet, Claire; Groisman, Alex

    2005-01-01

    A pneumatic gun for ballistic delivery of microparticles to soft targets is proposed and demonstrated. The particles are accelerated by a high speed flow of Helium in a capillary tube. Vacuum suction applied to a concentric, larger diameter tube is used to completely divert the flow of Helium from the gun nozzle and prevent it from hitting the target. Depths of penetration of micron-sized gold particles into agarose gels and their speeds of ejection from the gun nozzle are measured.

  10. Missile trajectory shaping using sampling-based path planning

    OpenAIRE

    Pharpatara, Pawit; Pepy, Romain; Hérissé, Bruno; Bestaoui, Yasmina

    2013-01-01

    International audience; This paper presents missile guidance as a complex robotic problem: a hybrid non-linear system moving in a heterogeneous environment. The proposed solution to this problem combines a sampling-based path planner, Dubins' curves and a locally-optimal guidance law. This algorithm aims to find feasible trajectories that anticipate future flight conditions, especially the loss of manoeuverability at high altitude. Simulated results demonstrate the substantial performance imp...

  11. Space and Missile Systems Center Standard: Space Flight Pressurized Systems

    Science.gov (United States)

    2015-02-28

    pressure and vehicle structural loads. The main propellant tank of a launch vehicle is a typical example. Pressurized System: A system that...SPACE AND MISSILE SYSTEMS CENTER STANDARD SPACE FLIGHT PRESSURIZED SYSTEMS APPROVED FOR PUBLIC RELEASE...Space Flight Pressurized Systems 5a. CONTRACT NUMBER 5b. GRANT NUMBER 5c. PROGRAM ELEMENT NUMBER 6. AUTHOR(S) 5d. PROJECT NUMBER 5e. TASK NUMBER

  12. Resonant Inductive Power Transfer for Noncontact Launcher-Missile Interface

    Science.gov (United States)

    2016-08-01

    TECHNICAL REPORT RDMR-WD-16-37 RESONANT INDUCTIVE POWER TRANSFER FOR NONCONTACT LAUNCHER-MISSILE INTERFACE Martin S...AGENCY USE ONLY 2. REPORT DATE August 2016 3. REPORT TYPE AND DATES COVERED Final 4. TITLE AND SUBTITLE Resonant Inductive Power Transfer...implementation of a wireless power transfer system based on the concept of non-radiating inductive coupling. 14. SUBJECT TERMS Resonant Inductive Coupling

  13. Decoupling Control Method Based on Neural Network for Missiles

    Institute of Scientific and Technical Information of China (English)

    ZHAN Li; LUO Xi-shuang; ZHANG Tian-qiao

    2005-01-01

    In order to make the static state feedback nonlinear decoupling control law for a kind of missile to be easy for implementation in practice, an improvement is discussed. The improvement method is to introduce a BP neural network to approximate the decoupling control laws which are designed for different aerodynamic characteristic points, so a new decoupling control law based on BP neural network is produced after the network training. The simulation results on an example illustrate the approach obtained feasible and effective.

  14. Pivotal role of ballistic and quasi-ballistic electrons on LED efficiency

    Science.gov (United States)

    Ni, X.; Li, X.; Lee, J.; Liu, S.; Avrutin, V.; Matulionis, A.; Özgür, Ü.; Morkoç, H.

    2010-08-01

    Significant progress in the power conversion efficiency and brightness of InGaN-based light emitting diodes (LEDs) has paved the way for these devices to be considered for LED lighting. In this realm, however, the efficiency must be retained at high injection levels in order to generate the lumens required. Unfortunately, LEDs undergo a monotonic efficiency degradation starting at current densities even lower than 50 A/cm 2 which would hinder LED insertion into the general lighting market. The physical origins for the loss of efficiency retention are at present a topic of intense debate given its enormous implications. This paper reviews the current status of the field regarding the mechanisms that have been put forward as being responsible for the loss of efficiency, such as Auger recombination, electron overflow (spillover), current crowding, asymmetric injection of electrons and holes, and poor transport of holes through the active region, the last one being applicable to multiple quantum well designs. While the Auger recombination received early attention, increasing number of researchers seem to think otherwise at the moment in that it alone (if any) cannot explain the progressively worsening loss of efficiency reduction as the InN mole fraction is increased. Increasing number of reports seems to suggest that the electron overflow is one of the major causes of efficiency degradation. The physical driving force for this is likely to be the relatively poor hole concentration and transport, and skewed injection favoring electrons owing to their relatively high concentration. Most intriguingly there is recent experimental convincing evidence to suggest that quasi-ballistic electrons in the active region, which are not able to thermalize within the residence time and possibly longitudinal optical phonon lifetime, contribute to the carrier overflow which would require an entirely new thought process in the realm of LEDs.

  15. Evaluation of bone surrogates for indirect and direct ballistic fractures.

    Science.gov (United States)

    Bir, Cynthia; Andrecovich, Chris; DeMaio, Marlene; Dougherty, Paul J

    2016-04-01

    The mechanism of injury for fractures to long bones has been studied for both direct ballistic loading as well as indirect. However, the majority of these studies have been conducted on both post-mortem human subjects (PMHS) and animal surrogates which have constraints in terms of storage, preparation and testing. The identification of a validated bone surrogate for use in forensic, medical and engineering testing would provide the ability to investigate ballistic loading without these constraints. Two specific bone surrogates, Sawbones and Synbone, were evaluated in comparison to PMHS for both direct and indirect ballistic loading. For the direct loading, the mean velocity to produce fracture was 121 ± 19 m/s for the PMHS, which was statistically different from the Sawbones (140 ± 7 m/s) and Synbone (146 ± 3 m/s). The average distance to fracture in the indirect loading was .70 cm for the PMHS. The Synbone had a statistically similar average distance to fracture (.61 cm, p=0.54) however the Sawbones average distance to fracture was statistically different (.41 cm, pballistic testing was not identified and future work is warranted.

  16. Comparing ballistic wounds with experiments on body simulator.

    Science.gov (United States)

    Bresson, F; Franck, O

    2010-05-20

    This paper demonstrates how ballistic experiments on body simulator can bring a key information in the forensic science field. In the investigated case, a hunter was shot by accident in the back. Two hunters were suspected of having inadvertently shot towards the victim. The deadly bullet left the body and cannot be found on the scene neither in the body. The only way to discriminate the two options was to perform ballistic tests in body simulators. Even though the knowledge about body simulators is not enough advanced yet to expect accurate quantitative results, it was supposed to fully discriminate the two investigated cases as its respective impact energy are highly different (respectively 1200J and 2400J). For each investigated possibility, bullet's expansion state and body wounds were simulated. Bullet impact characteristics were determined by measuring the muzzle velocity, compute the impact velocity in the considered range (the position of each hunter is accurately known). Reloading cartridges allowed to reproduce accuretaly the corresponding velocity. The body was simulated by 3 different means in order to explore the accuracy of the simulation process. We demonstrated that the reported case is situated in a velocity/energy range in which body simulators do not need to be particularly accurate to reproduce the bullet expansion/non-expansion state. It furthermore demonstrated that only one case is compatible with the ballistic wounds of the victim. In the other case, the bullet's expansion would lead to a completely different wound shape.

  17. The Second National Ballistics Imaging Comparison (NBIC-2)

    Science.gov (United States)

    Vorburger, TV; Yen, J; Song, JF; Thompson, RM; Renegar, TB; Zheng, A; Tong, M; Ols, M

    2014-01-01

    In response to the guidelines issued by the American Society of Crime Laboratory Directors/Laboratory Accreditation Board (ASCLD/LAB-International) to establish traceability and quality assurance in U.S. crime laboratories, NIST and the ATF initiated a joint project, entitled the National Ballistics Imaging Comparison (NBIC). The NBIC project aims to establish a national traceability and quality system for ballistics identifications in crime laboratories utilizing ATF’s National Integrated Ballistics Information Network (NIBIN). The original NBIC was completed in 2010. In the second NBIC, NIST Standard Reference Material (SRM) 2461 Cartridge Cases were used as reference standards, and 14 experts from 11 U.S. crime laboratories each performed 17 image acquisitions and correlations of the SRM cartridge cases over the course of about half a year. Resulting correlation scores were collected by NIST for statistical analyses, from which control charts and control limits were developed for the proposed quality system and for promoting future assessments and accreditations for firearm evidence in U.S. forensic laboratories in accordance with the ISO 17025 Standard. PMID:26601051

  18. Experimental model for civilian ballistic brain injury biomechanics quantification.

    Science.gov (United States)

    Zhang, Jiangyue; Yoganandan, Narayan; Pintar, Frank A; Guan, Yabo; Gennarelli, Thomas A

    2007-01-01

    Biomechanical quantification of projectile penetration using experimental head models can enhance the understanding of civilian ballistic brain injury and advance treatment. Two of the most commonly used handgun projectiles (25-cal, 275 m/s and 9 mm, 395 m/s) were discharged to spherical head models with gelatin and Sylgard simulants. Four ballistic pressure transducers recorded temporal pressure distributions at 308kHz, and temporal cavity dynamics were captured at 20,000 frames/second (fps) using high-speed digital video images. Pressures ranged from 644.6 to -92.8 kPa. Entry pressures in gelatin models were higher than exit pressures, whereas in Sylgard models entry pressures were lower or equivalent to exit pressures. Gelatin responded with brittle-type failure, while Sylgard demonstrated a ductile pattern through formation of micro-bubbles along projectile path. Temporary cavities in Sylgard models were 1.5-2x larger than gelatin models. Pressures in Sylgard models were more sensitive to projectile velocity and diameter increase, indicating Sylgard was more rate sensitive than gelatin. Based on failure patterns and brain tissue rate-sensitive characteristics, Sylgard was found to be an appropriate simulant. Compared with spherical projectile data, full-metal jacket (FMJ) projectiles produced different temporary cavity and pressures, demonstrating shape effects. Models using Sylgard gel and FMJ projectiles are appropriate to enhance understanding and mechanisms of ballistic brain injury.

  19. Quantum ballistic evolution in quantum mechanics application to quantum computers

    CERN Document Server

    Benioff, P

    1996-01-01

    Quantum computers are important examples of processes whose evolution can be described in terms of iterations of single step operators or their adjoints. Based on this, Hamiltonian evolution of processes with associated step operators T is investigated here. The main limitation of this paper is to processes which evolve quantum ballistically, i.e. motion restricted to a collection of nonintersecting or distinct paths on an arbitrary basis. The main goal of this paper is proof of a theorem which gives necessary and sufficient conditions that T must satisfy so that there exists a Hamiltonian description of quantum ballistic evolution for the process, namely, that T is a partial isometry and is orthogonality preserving and stable on some basis. Simple examples of quantum ballistic evolution for quantum Turing machines with one and with more than one type of elementary step are discussed. It is seen that for nondeterministic machines the basis set can be quite complex with much entanglement present. It is also pr...

  20. Excellent Ballistic Impact Properties Demonstrated By New Fabric

    Science.gov (United States)

    Pereira, J. Michael; Revilock, Duane M.; Hopkins, Dale A.

    2002-01-01

    Recently, a relatively new industrial fiber known by the trade name Zylon has been under commercial development by Toyobo Co., Ltd., Japan. In ballistic impact tests conducted at the NASA Glenn Research Center, it was found that dry fabric braided of Zylon had greater ballistic impact capacity than comparable (braid style and weight) fabric braided of Kevlar. To study the potential use of Zylon fabric in jet engine containment systems, the fabric was tested in Glenn's Structures and Acoustics Division Ballistic Impact Facility under conditions simulating those which occur in a jet engine blade-out event. Circular ring test specimens were fabricated by wrapping five layers of braided Zylon or Kevlar fabric around an inner ring made of a thin sheet of aluminum and a 1-in.-thick layer of aluminum honeycomb. The test specimens had an inner diameter of 40 in., an axial length of 10 in., and a wall thickness of approximately 1.5in. A test specimen is shown in the photograph.

  1. Design and Simulation of TF and TA Controller for Missile

    Institute of Scientific and Technical Information of China (English)

    ZHA Xu; GUANG Cheng-qi; CUI Ping-yuan; LIU Yong-cai

    2005-01-01

    A nonlinear terrain following(TF) and terrain avoidance(TA) controller is proposed for missile control systems.Based on classical TF algorithm (adaptive angle method), a new method for TF controller is proposed by using angle of attack. A method of obtaining terrain outline data from digital elevation map (DEM) for TF control is discussed in order to save store space. A TA algorithm is proposed by using bank-to-turn technique. The block control model, which is suitable for backstepping design, is given for nonlinear model of missile. Making full use of the characteristics of the system and combining block control principle and backstepping technique, a robust controller design method is proposed. Uncertainties in every sub-block are allowed, and can be canceled by using the idea of nonlinear damping. It is proved that the state tracking errors are converged to a neighborhood of the origin exponentially. Finally, nonlinear six-degree-of-freedom simulation results for the missile model are presented to demonstrate the effectiveness of the proposed control law.

  2. Changing law of launching pitching angular velocity of rotating missile

    Institute of Scientific and Technical Information of China (English)

    Liu Guang; Xu Bin; Jiao Xiaojuan; Zhen Tiesheng

    2014-01-01

    In order to provide accurate launching pitching angular velocity (LPAV) for the exterior trajectory optimization design, multi-flexible body dynamics (MFBD) technology is presented to study the changing law of LPAV of the rotating missile based on spiral guideway. An MFBD virtual prototype model of the rotating missile launching system is built using multi-body dynamics modeling technology based on the built flexible body models of key components and the special force model. The built model is verified with the frequency spectrum analysis. With the flexible body contact theory and nonlinear theory of MFBD technology, the research is conducted on the influence of a series of factors on LPAV, such as launching angle change, clearance between launching canister and missile, thrust change, thrust eccentricity and mass eccentricity, etc. Through this research, some useful values of the key design parameters which are difficult to be measured in physical tests are obtained. Finally, a simplified mathematical model of the changing law of LPAV is presented through fitting virtual test results using the linear regression method and verified by physical flight tests. The research results have important significance for the exterior trajectory optimization design.

  3. Converting Between PLY and Ballistic Research Laboratory-Computer-Aided Design (BRL-CAD) File Formats

    Science.gov (United States)

    2015-02-01

    Converting Between PLY and Ballistic Research Laboratory–Computer-Aided Design (BRL- CAD ) File Formats by Rishub Jain ARL-CR-0760...0760 February 2015 Converting Between PLY and Ballistic Research Laboratory–Computer-Aided Design (BRL- CAD ) File Formats Rishub Jain US...and Ballistic Research Laboratory–Computer-Aided Design (BRL- CAD ) File Formats 5a. CONTRACT NUMBER W911NF-10-2-0076 5b. GRANT NUMBER 5c. PROGRAM

  4. Development of Mortar Simulator with Shell-In-Shell System – Problem of External Ballistics

    Directory of Open Access Journals (Sweden)

    A. Fedaravicius

    2007-01-01

    Full Text Available The shell-in-shell system used in the mortar simulator raises a number of non-standard technical and computational problems starting from the requirement to distribute the propelling blast energy between the warhead and the ballistic barrel, finishing with the requirement that the length of warhead's flight path must be scaled to combat shell firing tables. The design problem of the simulator is split into two parts – the problem of external ballistics where the initial velocities of the warhead must be determined, and the problem of internal ballistics – where the design of the cartridge and the ballistic barrel must be performed.

  5. The Apache Longbow-Hellfire Missile Test at Yuma Proving Ground: Ecological Risk Assessment for Missile Firing

    Energy Technology Data Exchange (ETDEWEB)

    Jones, Daniel Steven [ORNL; Efroymson, Rebecca Ann [ORNL; Hargrove, William Walter [ORNL; Suter, Glenn [U.S. Environmental Protection Agency; Pater, Larry [ERDC-CERL

    2008-01-01

    A multiple stressor risk assessment was conducted at Yuma Proving Ground, Arizona, as a demonstration of the Military Ecological Risk Assessment Framework. The focus was a testing program at Cibola Range, which involved an Apache Longbow helicopter firing Hellfire missiles at moving targets, M60- A1 tanks. This paper describes the ecological risk assessment for the missile launch and detonation. The primary stressor associated with this activity was sound. Other minor stressors included the detonation impact, shrapnel, and fire. Exposure to desert mule deer (Odocoileus hemionus crooki) was quantified using the Army sound contour program BNOISE2, as well as distances from the explosion to deer. Few effects data were available from related studies. Exposure-response models for the characterization of effects consisted of human "disturbance" and hearing damage thresholds in units of C-weighted decibels (sound exposure level) and a distance-based No Observed Adverse Effects Level for moose and cannonfire. The risk characterization used a weight-of-evidence approach and concluded that risk to mule deer behavior from the missile firing was likely for a negligible number of deer, but that no risk to mule deer abundance and reproduction is expected.

  6. Moving Target Defense

    CERN Document Server

    Jajodia, Sushil; Swarup, Vipin; Wang, Cliff; Wang, X Sean

    2011-01-01

    Moving Target Defense: Creating Asymmetric Uncertainty for Cyber Threats was developed by a group of leading researchers. It describes the fundamental challenges facing the research community and identifies new promising solution paths. Moving Target Defense which is motivated by the asymmetric costs borne by cyber defenders takes an advantage afforded to attackers and reverses it to advantage defenders. Moving Target Defense is enabled by technical trends in recent years, including virtualization and workload migration on commodity systems, widespread and redundant network connectivity, instr

  7. Storage Reliability of Missile Materiel Program. Storage Reliability Analysis Summary Report. Volume 1. Electrical and Electronic Devices

    Science.gov (United States)

    1978-01-01

    racks with canvas covers; 30 missiles stored outside in the southeast desert under open sided metal roof sheds; 30 missiles stored outside in the...in storage containers experienced the following environments: 30 missiles stored outside in the Arctic on wooden racks with canvas covers; 30 missiles...is made by a spring-loaded spider washer which holds disc in contact with adjacent electrode. Air dielectric variable capacitors consist of a fixed

  8. Dynamic defense workshop :

    Energy Technology Data Exchange (ETDEWEB)

    Crosby, Sean Michael; Doak, Justin E.; Haas, Jason Juedes.; Helinski, Ryan; Lamb, Christopher C.

    2013-02-01

    On September 5th and 6th, 2012, the Dynamic Defense Workshop: From Research to Practice brought together researchers from academia, industry, and Sandia with the goals of increasing collaboration between Sandia National Laboratories and external organizations, de ning and un- derstanding dynamic, or moving target, defense concepts and directions, and gaining a greater understanding of the state of the art for dynamic defense. Through the workshop, we broadened and re ned our de nition and understanding, identi ed new approaches to inherent challenges, and de ned principles of dynamic defense. Half of the workshop was devoted to presentations of current state-of-the-art work. Presentation topics included areas such as the failure of current defenses, threats, techniques, goals of dynamic defense, theory, foundations of dynamic defense, future directions and open research questions related to dynamic defense. The remainder of the workshop was discussion, which was broken down into sessions on de ning challenges, applications to host or mobile environments, applications to enterprise network environments, exploring research and operational taxonomies, and determining how to apply scienti c rigor to and investigating the eld of dynamic defense.

  9. NPS Defense Affordability Panel

    Science.gov (United States)

    2012-05-01

    MEADS CAP AMRAAM (AIM-120) MQ-9 UAS REAPER AMF JTRS Chem Demil -ACWA TRIDENT II MISSILE USMC H-1 UPGRADES LHA 6 JLENS 100 50 0 50 100 150 200 250 300...DDG 1000, E-2D AHE, EFV(2)**, RMS, VH-71* – Air Force: AEHF, C-5 RERP, C-130 AMP, EELV(2), Global Hawk, JASSM, JPATS, WGS – DoD: Chem Demil -ACWA(2...Javelin, JLENS – Navy: H-1 Upgrades – Air Force: AEHF, C-27J, NPOESS, C-130 AMP – DoD: Chem Demil -ACWA, JTRS GMR * This program reported

  10. A modular ducted rocket missile model for threat and performance assessment

    NARCIS (Netherlands)

    Mayer, A.E.H.J.; Halswijk, W.H.C.; Komduur, H.J.; Lauzon, M.; Stowe, R.A.

    2005-01-01

    A model was developed to predict the thrust of throttled ramjet propelled missiles. The model is called DRCORE and fulfils the growing need to predict the performance of air breathing missiles. Each subsystem of the propulsion unit of this model is coded by using engineering formulae and enables the

  11. Zero-sum versus nonzero-sum differential game approach to missile guidance

    NARCIS (Netherlands)

    Trottemant, E.J.; Vermeulen, A.; Weiss, M.

    2007-01-01

    New developments and improvements on evasive missiles have led to a situation in which the current missile guidance laws have difficulties to intercept maneuvering targets. The nature of the interception problem with 2 non-cooperative players leads to the field of differential games. Recent studies

  12. Missile Sites, Former missile field for Whiteman., Published in 2005, 1:12000 (1in=1000ft) scale, Whiteman Air Force Base.

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This Missile Sites dataset, published at 1:12000 (1in=1000ft) scale, was produced all or in part from Field Survey/GPS information as of 2005. It is described as...

  13. What’s Next for Russia?

    Institute of Scientific and Technical Information of China (English)

    2008-01-01

    As the United States proceeds with its missile defense plan in Eastern Europe, Russia is left with few options In May 2007, the United States launched a plan to deploy an anti-missile system in Eastern Europe, including 10 inter- ceptor missiles in Poland and a radar station in the Czech Republic. Although the system allegedly is being built to counter the threat of a ballistic missile-equipped Iran, the plan has met with vehement opposition from Russia, which insists that the system is directed against it.

  14. Simulation Analysis of Wave Effect on Exceeding Water Gesture and Load of Submarine Launched Missile

    Directory of Open Access Journals (Sweden)

    Ke Zhao

    2014-02-01

    Full Text Available In this study, we have a research on wave action on the submarine launched missile water trajectory and gesture angles during the process between launch and exit from water. Infinite water depth plane wave was used as the wave model, mathematics models of missile exceeding water under different wave conditions were established based on ideal potential flow theory. The flow field velocity potential was obtained by solving the Laplace equation, thus can obtain missile surface pressure. Considering free surface effects, simple Green’s function was introduced to solve boundary value problems. Three-dimensional Fortran program and finite software ABAQUS were combined to complete the fluid-structure interaction simulation. The rules that wave level and phases effects on submarine-launched missile were finally obtained, which shows wave affect cannot be neglected. Simulation methods and results of this study have a certain reference value for the submarine-launched missile launching.

  15. RUPTURE OF THIN METAL TUBES BY NORMAL AND OBLIQUE IMPACT OF BLUNT CONICALNOSED MISSILES: EXPERIMENTS

    Institute of Scientific and Technical Information of China (English)

    Mu Jianchun; Zhang Tieguang

    2000-01-01

    Impact tests at both normal and oblique angles of incidence were .conducted on thin mild tubes using a moderate size of 90° conical-nosed missiles. Tne minimum impact speed that generated cracks through the thickness of the wall, termed the speed for rupture, was measured, and various modes of rupture were identified. For a thin tube hit by a missile at a normal angle of obliquity at the speed for rupture, the contact region spreads across the nose of the missile, and the transverse shear deformation is predominant in the final failure process. If the angle of obliquity is 30°, the missile pierces a hole through the wall of the tube. At the speed for rupture, the kinetic energy of the missile for oblique angle 30° is only about 45 % that required for plugging at a normal angle of obliquity.

  16. Results of a Round Robin ballistic load sensing headform test series

    NARCIS (Netherlands)

    Philippens, M.A.G.; Anctil, B.; Markwardt, K.C.

    2014-01-01

    The majority of methods to assess the behind armour blunt trauma (BABT) risk for ballistic helmets is based on plastic deformable headforms. An alternative, the Ballistic Load Sensing Headform (BLSH) can record the dynamic contact force between helmet back face and the skull. Helmet BABT methods are

  17. Multiple-Sensor Discrimination of Closely-Spaced Objects on a Ballistic Trajectory

    Science.gov (United States)

    2015-05-18

    aim_point; Determine Interceptor Trajectory This segment of code calculates the trajectory necessary for the interceptor to converge on the target ...identifying and tracking an object of interest within closely-spaced objects traveling on a ballistic trajectory. The algorithms utilize a target object map...ballistic objects, dissimilar sensor correlation, target object map, Dempster-Shafer discrimination algorithms, simulation environment for various

  18. A model for evaluating the ballistic resistance of stratified packs

    Science.gov (United States)

    Pirvu, C.; Georgescu, C.; Badea, S.; Deleanu, L.

    2016-08-01

    Models for evaluating the ballistic performance of stratified packs are useful in reducing the time for laboratory tests, understanding the failure process and identifying key factors to improve the architecture of the packs. The authors present the results of simulating the bullet impact on a packs made of 24 layers, taking into consideration the friction between layers (μ = 0.4) and the friction between bullet and layers (μ = 0.3). The aim of this study is to obtain a number of layers that allows for the bullet arrest in the packs and to have several layers undamaged in order to offer a high level of safety for this kind of packs that could be included in individual armors. The model takes into account the yield and fracture limits of the two materials the bullet is made of and those for one layer, here considered as an orthotropic material, having maximum equivalent plastic strain of 0.06. All materials are considered to have bilinear isotropic hardening behavior. After documentation, the model was designed as isothermal because thermal influence of the impact is considered low for these impact velocities. The model was developed with the help of Ansys 14.5. Each layer has 200 mm × 200 × 0.35 mm. The bullet velocity just before impact was 400 m/s, a velocity characterizing the average values obtained in close range with a ballistic barrel and the bullet model is following the shape and dimensions of the 9 mm FMJ (full metal jacket). The model and the results concerning the number of broken layers were validated by experiments, as the number of broken layers for the actual pack (made of 24 layers of LFT SB1) were also seven...eight. The models for ballistic impact are useful when they are particularly formulated for resembling to the actual system projectile - target.

  19. Defense Mechanisms: A Bibliography.

    Science.gov (United States)

    Pedrini, D. T.; Pedrini, Bonnie C.

    This bibliography includes studies of defense mechanisms, in general, and studies of multiple mechanisms. Defense mechanisms, briefly and simply defined, are the unconscious ego defendants against unpleasure, threat, or anxiety. Sigmund Freud deserves the clinical credit for studying many mechanisms and introducing them in professional literature.…

  20. Avian host defense peptides

    NARCIS (Netherlands)

    Cuperus, Tryntsje; Coorens, M.; van Dijk, A.; Haagsman, H.P.

    2013-01-01

    Host defense peptides (HDPs) are important effector molecules of the innate immune system of vertebrates. These antimicrobial peptides are also present in invertebrates, plants and fungi. HDPs display broad-spectrum antimicrobial activities and fulfill an important role in the first line of defense