Propulsion, Engines and Missiles: Antimissile Defense Systems

A Free Electron Laser Weapon for Sea Archer

DEC 2001

75 pages

Authors: Ivan Ng; NAVAL POSTGRADUATE SCHOOL MONTEREY CA

The full text of this report is available for sale.

The immediate threat of any surface combatant is the Anti-Ship Cruise Missile with stealthy, sea-skimming characteristics that reduce the time for any defensive weapon system to react. With the importance of littoral warfare, this problem is exacerbated as missiles can also be launched from land. The Free Electron Laser (FEL) will be able to meet the threat using its speed of light engagement with high hit probability, low utilization cost ...

Defense Horizons. Maritime Access: Do Defenders Hold All the Cards? October 2001, Number 4

OCT 2001

9 pages

Authors: Arthur H. Barber III; Delwyn L. Gilmore; NATIONAL DEFENSE UNIV WASHINGTON DC CENTER FOR TECHNOLOGY AND NATIONAL SECURITY POLICY

National security strategy depends on sustaining access to world markets for American commerce in peacetime and for the Armed Forces to various part of the globe in times of crisis or war. Potential nation-state adversaries understand the importance of this access and are devising strategies and investing in systems to delay, discredit, or deny U.S. entry to those regions of vital interest where they wish to become the dominant power. ...

Sea Motion Characterization of the Mobile Aerial Target Support System (MATSS) for the Stabilized High-Accuracy Optical Tracking System (SHOTS)

SEP 2001

36 pages

Authors: A. D. Ramirez; C. B. Phillips; D. D. Haddock; M. G. Lovern; S. D. Russell; SPACE AND NAVAL WARFARE SYSTEMS CENTER SAN DIEGO CA

The objective of this study was to conduct ship motion characterization to identify stabilization problems that could affect the operation of the Stabilized High-Accuracy Optical System (SHOTS) while onboard the Mobile Aerial Target Support System (MATSS).

Assessing Russian Reactions to U.S. Missile Defense

SEP 2001

93 pages

Authors: Michael W. Baze; NAVAL POSTGRADUATE SCHOOL MONTEREY CA

The United States government intends to deploy strategic missile defense (MD) capabilities to address an emerging ballistic missile threat. Many opponents of MD have argued that this deployment will incite arms races. This could pose a serious threat to U.S. national security. This thesis employs arms race theory as an analytical framework to assess the potential implications of U.S. MD deployment focusing in particular on the likelihood of arms competition ...

A Passive Ranging Technique for Objects within the Marine Surface Layer

AUG 2001

5 pages

Authors: Stephen Doss-Hammel; SPACE AND NAVAL WARFARE SYSTEMS CENTER SAN DIEGO CA

Infrared Search and Track (IRST) systems are important to the surface Navy for the detection of low-flying missile threats. Infrared signals propagating within the marine atmospheric surface layer are frequently distorted by strong vertical fluxes. One particular distortion that occurs commonly is the sub-refractive mirage. During sub-refractive mirage conditions, an imaging sensor or camera will record two distinct images of a single point source. A sub-refractive mirage image can be ...

The Future of Ballistic Missile Defense Technology

26 JUL 2001

32 pages

Authors: Charles Infosino; BALLISTIC MISSILE DEFENSE ORGANIZATION WASHINGTON DC

Space and Missile Defense Technical Center Briefing for AIAA/BMDO Technology Conference and Exhibit

23 JUL 2001

26 pages

Authors: Jess Granone; ARMY SPACE AND MISSILE DEFENSE COMMAND HUNTSVILLE AL

Sliding Mode Observers Versus Kalman Filter in the Homing Loop

23 JUL 2001

8 pages

Authors: I. A. Schkolnikov; Y. B. Shtessel; P. Zarchan; D. P. Lianos; ALABAMA UNIV IN HUNTSVILLE DEPT OF ELECTRICAL AND COMPUTER ENGINEERING

A comparison via Monte-Carlo simulations is made of Sliding Mode Observers versus Kalman Filter in the homing missile guidance system using different guidance laws. It's shown that the sliding mode observer contributes to less miss distance due to noise than Kalman filter. Application of sliding mode estimators in the homing loop with Proportional Navigation guidance and with a phase-lead compensation based on sliding mode estimators for the flight control system ...

Wind Tunnel Model Design and Test Using Rapid Prototype Materials and Processes

23 JUL 2001

13 pages

Authors: Richard R. Heisier; Clifford L. Ratliff; JOHNS HOPKINS UNIV LAUREL MD APPLIED PHYSICS LAB

Whether an airframe is a new design, modification of an existing design, or evaluation of a competing or foreign design, an accurate, high-confidence representation of the airframe aerodynamics is paramount to any low-risk design or evaluation effort. These aerodynamic estimates are used for vehicle and component sizing, performance estimates, and autopilot design and evaluation. The advent of new rapid prototyping manufacturing techniques and materials could provide a means to reduce ...

A New Approach to Rugged Optical Components With High Spectral and Angular Selectivity

23 JUL 2001

29 pages

Authors: L. B. Glebov; C. M. Stickley; O. M. Efimov; UNIVERSITY OF CENTRAL FLORIDA ORLANDO SCHOOL OF OPTICS/CREOL

This is a report on a new materials technology, PTR glass, which will make possible rugged, lower cost, light weight optical components having wide application to both low-power and high-power laser systems. Applications we forsee include: both spectral and angular beam steering and beam scanning, high resolution beam filtering, reflecting, transmitting, splitting, beam combining, and correcting of aberrations in telescopes and other optical systems. This PTR glass and some of ...

Antenna-Coupled Infrared Sensors: Next-Generation Uncooled IR Focal Planes

23 JUL 2001

19 pages

Authors: Glenn D. Boreman; UNIVERSITY OF CENTRAL FLORIDA ORLANDO SCHOOL OF OPTICS/CREOL

We report on recent advances on a completely new type of uncooled IR sensor technology, which uses ultrasmall metallic antennas to capture the radiation. By electronically changing the 30-THz current-wave distribution on the antenna structure, the polarization and wavelength responses of the IR sensor can be changed dynamically in response to a small (100 mV) control voltage. The operational advantages to seeker systems are that enhanced target discrimination is possible ...

Multi-Spectral Shock-Layer Radiance Flight Experiment Plan

23 JUL 2001

10 pages

Authors: Clifton B. Phillips; Peter W. Erdman; Carl Howlett; Deborah A. Levin; Michael G. Lovern; SPACE AND NAVAL WARFARE SYSTEMS COMMANDSAN DIEGO CA

The Dual-mode Experiment on Bow-shock Interactions (DEBI) project is designed to contribute further understanding toward the aerothermochemistry associated with hypersonic flight for interceptor applications within the Earth's atmosphere. Such detailed understanding is required to accurately model the optical radiation from high temperature flows. A main component of an interceptor target acquisition and tracking system suite is the optical sensor(s). Future missile interceptors are projected to fly at hypersonic velocities and ...

High Birefringence Liquid Crystals for Laser Beam Steering

23 JUL 2001

7 pages

Authors: Shin-Tson Wu; HRL LABS LLC MALIBU CA

High birefringence and low viscosity liquid crystals are crucial for improving the response time of an agile laser beam steering device. Nematic liquid crystals with birefringence greater than 0.4, low absorption and good photo and thermal stability are investigated.

Interference Analysis of Software Systems

23 JUL 2001

8 pages

Authors: James O. Wilder; BOEING CO COLORADO SPRINGS CO SPACE AND COMMUNICATIONS DIV

This paper describes a method for anticipating the occurrence of software faults in terms of a theory of dynamic strength whose functional representation has identical properties with the reliability function. Standard software complexity metrics are assessed to produce a probability distribution representing static complexity, with size as the variate, which is transformed into a complementary static strength distribution. The executing software system is also represented as a probability distribution in ...

Comparison of Batch and Kalman Filtering for Radar Tracking

23 JUL 2001

7 pages

Authors: Haywood Satz; Thomas H. Kerr; RAYTHEON CO BEDFORD MA

Radar tracking performance was compared among two choices of statistical filtering algorithms for the noisy measurements of exo-atmospheric objects in ballistic motion. Such motion is characteristic of satellites and missiles. Object position and velocity were governed by the nonlinear dynamics of body motion in a central force field, and measurements were modeled as nonlinear observations of those object motions in Cartesian coordinates. The two choices of statistical filtering algorithms were ...

Integrated Flight Experiment (IFX) Laser Payload Element (LPE) Progress

23 JUL 2001

9 pages

Authors: Matthew E. Zuber; J. Jackson; Marty Wacks; TRW SPACE AND DEFENSE SECTOR REDONDO BEACH CA

The U.S. Air Force is pursuing a technology demonstration program aimed at launching an experimental laser into space. The program will help Department of Defense policy-makers decide whether to pursue an operational Space Based Laser (SBL) system designed to protect the United States and its allies from ballistic missiles as part of a layered defense. Designated the Integrated Flight experiment (IFX), it consists of four elements: Laser Payload Element (LPE), ...

Synthetic Task Design: Cognitive Task Analysis of AWACS Weapons Director Teams

JUL 2001

59 pages

Authors: R. P. Fahey; A. L. Rowe; K. L. Dunlap; COMPUTER DATA SYSTEMS INC SAN ANTONIO TX

In this report, we describe a cognitive task analysis (CTA) of Airborne Warning and Control Systems (AWACS) Weapons Director teams. We used three different CTA techniques to investigate how Weapons Directors typically perceive, decide, and act with respect to their environment. The results of the CTA were then distilled to provide both a description of the AWACS job and some preliminary specifications for designing the SynTEAM (Synthetic Team Effectiveness Assessment ...

Highly Damped Lightweight Wavy Composite

JUL 2001

147 pages

Authors: William F. Pratt; Matthew S. Allen; Troy J. Skousen; PATTERNED FIBER COMPOSITES INC LINDON UT

Wavy composite had its origin in the Star Wars programs of the late 1980s as part of a space-based laser anti-missile program and is a new material that exhibits both high stiffness and damping when combined with capable viscoelastic materials. If high modulus fibers are used in the production of the wavy composite, it is possible to attain the stiffness of steel, thousands of times the damping, with the lightweight ...

Extending U.S. Theater Missile Defense to Northeast Asia: Ramifications for Regional Security

JUN 2001

89 pages

Authors: Steven A. Attenweiler; NAVAL POSTGRADUATE SCHOOL MONTEREY CA

The absence of a formidable U.S. and allied Theater Missile Defense (TMD) capability in the East Asian region has encouraged a build-up in offensive missile capability on the part of the People's Republic of China (PRC) and the Democratic People's Republic of Korea (DPRK). This build-up has destabilized a region of vital importance to the national interest of the United States by encouraging the idea that offensive military action can ...

Enabling Technologies for Missiles and Rockets

15 MAY 2001

Authors: William C. McCorkle; ARMY AVIATION AND MISSILE COMMAND FORT EUSTIS VA

The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.

National Missile Defense - 21st Century Long Wall?

10 APR 2001

34 pages

Authors: James H. Lynch; ARMY WAR COLL CARLISLE BARRACKS PA

The paper puts forth the thesis that the security challenges of the twenty-first century require the addition of National Missile Defense (NMD) to U.S. nuclear deterrence strategy. It discusses this issue with the help of an historical analogy that compares the U.S. decision to build NMD to the Athenian decision in 479 BC to build its Long Walls linking Athens and its major seaport. First, the paper defines the three ...

Analysis of Ballistic Missile Defense Policy in East Asia: Implications for Sino-U.S. Relations

10 APR 2001

32 pages

Authors: James E. Moentmann; ARMY WAR COLL CARLISLE BARRACKS PA

The vital U.S. national interests of protecting the homeland, citizens abroad and deployed military forces are significantly threatened by current and emerging ballistic missile-capable nations, states of concern and other potentially hostile international organizations. The Asia-Pacific region is increasingly important to U.S. economic health and security. China's long- term goals may include regional hegemony and fierce competition with the United States. Chinese national interests could easily become the source of ...

Sailing in Troubled Waters: U.S. - Taiwan Security Policy and Emerging Challenges

10 APR 2001

29 pages

Authors: Kurt S. Grabey; ARMY WAR COLL CARLISLE BARRACKS PA

Arguably the most complex bilateral strategic security relationship the United States (U.S.) carries with it into the new millennium is that which exists with the People's Republic of China's (PRC) rebel province - Taiwan. Rising from the ashes of World War II and inextricably tied to the deep international chasm carved by Cold War bipolarity, our robust but now unofficial relations with Taipei have brought nearly 50 years of relative ...

The United States and Asia-Pacific Regional Alliances As An Influence on Stability and the Goal of a Democratic Reunification of Korea

APR 2001

28 pages

Authors: John C. Snider; ARMY WAR COLL CARLISLE BARRACKS PA

This strategic research project will focus on the potential for convergence of national interests between the United States, China, Japan, North and South Korea, and other ASEAN member states. I will address major political and economic issues in the Asia-Pacific region in relation to how the relevant actors in the region play an integral role in a potential, democratic-like reunification of North and South Korea. I propose to present some ...

Navy Force Structure Changes Required if Assigned the Role of National Missile Defense

APR 2001

45 pages

Authors: Roger D. Hardy; MARINE CORPS COMMAND AND STAFF COLL QUANTICO VA

The end of the Cold War has significantly reduced the threat of a large-scale battle between great powers and redefined the primary threats facing the U.S. One of these primary threats is the threat posed by intercontinental ballistic missile armed with weapons of mass destruction. To deal with this evolving threat, the Congress has mandated that a land based National Missile Defense system capable of defending the U.S. homeland be ...

National Missile Defense: Laying the Groundwork for Future U.S. Security Policy

APR 2001

57 pages

Authors: Jeffrey P. Harrell; AIR UNIV MAXWELL AFB AL

International security has come to a crossroad. No longer is the world made up of a bipolar system divided between the United States and the Soviet Union. Instead the international security system consists of a multi- polar environment with only one superpower the United States. With this change to the international system, a time has come for the United States to examine its role and policies with relation to international ...

Confidence-Based Performance Assessments for the BMDO Family of Systems

27 MAR 2001

8 pages

Authors: Barry L. Mitchell; Thomas P. Spriesterbach; JOHNS HOPKINS UNIV LAUREL MD APPLIED PHYSICS LAB

How models will support the T&E of ballistic missile defense systems is currently a topic of much debate. The authors have developed a methodology to extend weapon system test results to the theater-level using Extended Air Defense Simulation (EADSlM). The primary Measure of Effectiveness (MOE) is protection effectiveness for the BMDO family of systems. EADSlM is run stochastically using offline a random draws from a database of accuracy timeline and ...

National Missile Defense

25 MAR 2001

44 pages

Authors: Steve Peters; ARMY WAR COLL CARLISLE BARRACKS PA

Security and defense of the continental United States received much attention during the 2000 Presidential election campaign. One of the more controversial proposals for homeland defense is deployment of a National Missile Defense (NMD). Allies and adversaries alike are concerned that NMD could cause a shift in the balance of power and might lead to a renewed arms race. This paper explores the NMD issue to determine whether the program ...

U.S. National Missile Defense (NMD) and European Security

15 MAR 2001

27 pages

Authors: Marc R. Bertucchi; ARMY WAR COLL CARLISLE BARRACKS PA

The debate over whether or not the U.S. should deploy an NMD system designed to protect all fifty states against limited attack by ballistic missiles is presently raging in both the United States and Europe. An NMD deployment as currently envisioned by the U.S. government is a real concern for European Nations for a number of reasons. These include concern that they have not been appropriately consulted with, or involved ...

A Radial Basis Function Neural Network Approach to Two-Color Infrared Missile Detection

12 MAR 2001

100 pages

Authors: Kin-Weng Chan; AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF ENGINEERING AND MANAGEMENT

Multicolor infrared imaging missile-warning systems require real-time detection techniques that can process the wide instantaneous field of regard of focal plane array sensors with a low false alarm rate. Current technology applies classical statistical methods to this problem and ignores neural network techniques. Thus the research reported here is novel in that it investigates the use of radial basis function (RBF) neural networks to detect sub-pixel missile signatures. An RBF ...

Optimal Allocation of Targets for the Hawk Air Defence Missile System

01 MAR 2001

2 pages

Authors: Jens M. Hansen; DANISH DEFENCE RESEARCH ESTABLISHMENT COPENHAGEN

Judging the Limits of Battle Management in TBMD

MAR 2001

7 pages

Authors: David R. Griggs; JOHNS HOPKINS UNIV LAUREL MD APPLIED PHYSICS LAB

Theater ballistic missile defense (TBMD) systems are required to be able to engage not only single ballistic missile targets but also a number of nearly simultaneous targets in a raid. In many potential situations, the size of the raid may be such that more than one defensive system would be necessary to engage all of the targets. It is generally thought that to effectively engage a raid using multiple systems, ...

Ballistic Missile Defense: A German-American Analysis

JAN 2001

31 pages

Authors: David C. Gompert; Klaus Arnhold; STIFTUNG WISSENSCHAFT UND POLITIK (SWP)BERLIN (GERMANY)

This paper is intended as a German-American contribution to a reasoned, patient, wide-ranging U.S.-European strategic discussion. It is not just another NMD advocacy piece, pro or con, but a joint attempt to examine missile defense within a strategic context. It begins by describing the prevailing conditions when the United States and Soviet Union agreed to ban NMD. It then explains key differences between those conditions and today's. Against this backdrop, ...

Destructive Expendables

JAN 2001

6 pages

Authors: Duane A. Warner; Mike Pershing; Stavros Androulakakis; Gordon Schmidt; William Lappert; AIR FORCE RESEARCH LAB WRIGHT-PATTERSON AFB OH

Phase II of the Laser Beamrider Countermeasures program is complete. Phase II consisted of static tests where antiaircraft missiles were exposed to detonating 4Omm and 7Omm warheads. All of the tested missiles received significant damage. Also some dynamic tests occurred where the effects of these detonating warheads on the flights of missiles were observed. For those tests where the detonations were properly timed the missiles failed to reach the target. ...

Multiservice Procedures for Joint Air Operations Center (JAOC) and Army Air and Missile Defense Command (AAMDC) Coordination

JAN 2001

108 pages

Authors: ARMY TRAINING AND DOCTRINE COMMAND FORTMONROE VA

This publication documents one aspect of air and missile defense operations: the TTP necessary to coordinate operations between a JAOC established by a COMAFFOR designated JFACC/AADC/ACA and the AAMDC. The AAMDC is a fully integrated, multifunctional air and missile defense organization whose primary purpose is to perform theater-level air defense (AD) and joint theater missile defense (JTMD) planning, integration, coordination, and execution (less attack operations) functions for the COMARFOR. The ...

Japan and Ballistic Missile Defense

2001

Authors: Michael D. Swaine; Rachel M. Swanger; Takashi Kawakami; RAND CORP SANTA MONICA CA

Spurred by a perceived growing ballistic missile threat from within the Asia-Pacific region and requests from the United States to support research and development on components of a missile defense system, the Japanese government decided in late 1998 and early 1999 to move forward with joint research and development with the United States on ballistic missile defense (BMD). But the decisions taken thus far commit Japan only to limited participation ...

The International Political Costs of National Missile Defense

2001

3 pages

Authors: Charles L. Glaser; Steve Fetter; CHICAGO UNIV IL

National missile defense (NMD) is the most visible and controversial element of President George W. Bush's defense policy. The Bush administration has focused its case for NMD on the danger posed by so-called "rogue states," such as North Korea, Iran, and Iraq that are thought to be working to acquire long-range missile capabilities. Although less frequently stated, some proponents of NMD believe the United States should deploy defenses against China ...

Judging the Limits of Battle Management in TBMD

2001

7 pages

Authors: David R. Griggs; JOHNS HOPKINS UNIV LAUREL MD APPLIED PHYSICS LAB

Naval Forces' Capability for Theater Missile Defense

2001

203 pages

Authors: NATIONAL ACADEMY OF SCIENCES WASHINGTON DC NAVAL STUDIES BOARD

At the request of the Chief of Naval Operations, the National Research Council, under the auspices of the Naval Studies Board, established a committee to assess the Department of the Navy's current and future naval theater missile defense (TMD) capabilities. The Committee for Naval Forces' Capability for Theater Missile Defense first convened in April 2000 and met approximately 2 days a month for 8 months. This report is based on ...

Missile Defense Attack Operations (Joint Force Quartery, Winter 2000- 2001)

2001

7 pages

Authors: Nathan K. Watanabe; Shannon M. Huffman; NATIONAL DEFENSE UNIV WASHINGTON DC CENTER FOR COUNTERPROLIFERATION RESEARCH

Joint doctrine maintains that theater missile defense (TMD) is a joint mission, but in fact it is just another common mission pursued separately by the services. Joint Pub 3- 01.5, Doctrine for Joint Theater Missile Defense, often invokes the term integrate. Although the services are making progress in vertical integration on all levels, little has been done to harmonize efforts horizontally. Service agencies responsible for TMD illustrate this divergence. Some ...

Simulations of the TJNAF FEL with a Tapered Undulator and Experimental Results of Laser Damage

DEC 2000

112 pages

Authors: Dimitrios Lampiris; NAVAL POSTGRADUATE SCHOOL MONTEREY CA

The modern maritime battlefield is dominated by the new generation of sea-skimming, high-speed, stealthy and highly agile anti-ship missiles. Anti- ship cruise missile technology continues to evolve, overcoming the performance of the existing ship self-defense weapon systems. The Free Electron Laser (FEL) could be the ultimate speed-of-light, hard-kill weapon system, offering unique features such as tunability, high power, pinpoint accuracy and infinite magazine. Multimode computer simulations were used to explore ...

Non-Autoclave Materials for Large Composite Structures

17 NOV 2000

25 pages

Authors: Catherine A. Byrne; SCIENCE RESEARCH LAB INC SOMERVILLE MA

Report developed under SBIR contract for topic BMDO 00-013. Launch vehicles for the Space Based Infrared System will include Titan Launch vehicles and the Air Force Space Operations Vehicle (SOV). Composite structures on the SOV (the military version of NASA's Reusable Launch Vehicle (RLV) will be too large to cure inside existing autoclaves. Electron Beam processing is one of the most promising approaches for out-of-autoclave composite ...

Test Support to BMDO System and Technology Programs

09 NOV 2000

42 pages

Authors: Robert Thomas; Patrick T. Clancy; BALLISTIC MISSILE DEFENSE ORGANIZATION WASHINGTON DC

As a way of introducing the 'test' context of this session, this brief will describe how the BMDO T&E Program is structured and how the Test Infrastructure which includes Targets, Ground Test Facilities (GTFs), Ranges and Airborne Sensors is designed to support BMDO MDAP and Technology Program Test Requirements. the briefing addresses BMDO organization and management; BMDO corporate test program, T&E ranges, instrumentation, and facilities; future test support considerations and ...

Blast Initiation Detector Proof-Of-Concept Wind Tunnel Testing of Optical/Aeroshell Interface

09 NOV 2000

14 pages

Authors: Leo R. Gauthier Jr.; Louis A. Mattes; Christopher L. Eddins; JOHNS HOPKINS UNIV LAUREL MD APPLIED PHYSICS LAB

Interceptors with fragmenting warheads that detonate in proximity to target vehicles are being used in missile defense tests. As part of this effort, it is necessary to be able to measure the performance of an interceptor during the endgame and it is preferable that the measurements be recorded independently from the interceptor telemetry. Target-based instrumentation and telemetry are used to provide this independent performance measurement. A Blast initiation Detector (BID) ...

In-Situ Calibration of an X-Band Antenna Array for Low-Angle Tracking with High-Resolution Direction-Finding Methods

NOV 2000

Authors: Eric K. Hung; DEFENCE RESEARCH ESTABLISHMENT OTTAWA (ONTARIO)

Presented in this report is an in-situ method to calibrate X-band antenna arrays designed to detect and track low-level missiles over water. These arrays are indispensable in ship defence, because they can operate in rainy and foggy conditions where atmospheric absorption is too high for the use of more accurate millimetre wave radars or optical devices. The method uses a set of array snapshots to construct a calibration matrix for ...

Joint Interoperability of Theater Missile Defense Systems: Extending theScope of Testing

OCT 2000

59 pages

Authors: Robert A. Koyak; NAVAL POSTGRADUATE SCHOOL MONTEREY CA

Assuring the interoperability of a theater missile defense (TMD) family of systems (FoS) is a challenging problem with many different facets. Under a concept of interoperability that is based on competition among interfacing systems for reporting responsibility on tracks, the least performing system can degrade the performance of the entire family. A program of interoperability testing must therefore emphasize operability in addition to conformance ...

Knowledge Based Systems as a Means of Managing Aspects of Datalink Within a Decision Support System for Naval Airborne Early Warning

OCT 2000

Authors: Michael Thomas; Howard Howells; DEFENCE EVALUATION AND RESEARCH AGENCY FARNBOROUGH (UNITED KINGDOM)

The future airborne early warning aircraft to be operated by the Royal Navy will consist of an advanced radar driven mission system that will include a datalink: this Datalink, as well as advanced sensors and an expanded role, will impose additional work on the aircrew that operate in the rear of the airborne early warning (AEW) aircraft. Operating the existing mission system is, under certain conditions, considered by AEW aircrew ...

A Method of Increasing the Kinematic Boundary of Air-to-Air Missiles Using an Optimal Control Approach

SEP 2000

222 pages

Authors: Robert D. Broadston; NAVAL POSTGRADUATE SCHOOL MONTEREY CA

Current missile guidance laws are generally based on one of several forms of proportional navigation (PN). While PN laws are robust, analytically tractable, and computationally simple, they are only optimal in a narrow operating regime. Consequently, they may not optimize engagement range, time to intercept, or endgame kinetic energy. The advent of miniaturized high speed computers has made it possible to compute optimal trajectories for ...

Theater Missile Defense in Japan: Implications for the U.S.-China-Japan Strategic Relationship

SEP 2000

37 pages

Authors: Patrick M. O'Donogue; ARMY WAR COLL STRATEGIC STUDIES INST CARLISLE BARRACKS PA

Colonel Patrick M. O'Donogue (U.S. Army War College class of 2000) considers a topic of key importance to U.S. national security. Perhaps no security matter (with the exception of National Missile Defense) is as contentious globally as Theater Missile Defense (TMD). The question of U.S. assistance to Japan to develop and deploy a TMD is particularly complex and controversial.

Constitutive-Microdamage Modeling of Target-Missile Damage Caused by Hypervelocity Impact

AUG 2000

Authors: Eftis; Ceasar J. Trejo; TEXAS UNIV AT EL PASO FAST CENTER FOR STRUCTURAL INTEGRITY OF AEROSPACE SYSTEMS

A constitutive microdamage model is developed capable of simulating high shock compression, release, dilatation (tension), and microdamage evolution leading possibly to fracture and penetration of targets after hypervelocity impact. The microdamage constitutive model is applicable to polycrystalline metals and is appropriate in the lower range of hypervelocity impact velocity, i.e. approximately 2-7 Km/s, over which the projectile and target materials remain in the solid state. The model implements the Mie-Omneisen ...