Missile

About: Missile is a research topic. Over the lifetime, 12829 publications have been published within this topic receiving 94307 citations. The topic is also known as: guided missile & missiles.

Robust H ∞ autopilot design for agile missile with time-varying parameters

Abstract: This paper considers two autopilot designs using H ∞ loop shaping for an agile missile that experiences high angle of attack, highly nonlinear and rapidly changing dynamics, and aerodynamic variation after launch. The main autopilot design is started with two H ∞ control designs intended to cover the low-speed and high-speed regions of the flight envelope. Then, the two control designs are combined (via Mach variation) to construct a global controller that covers the entire flight envelope. The proposed autopilots have a simple structure and require no time-consuming gain scheduling for many flight conditions, while providing satisfactory tracking and robustness over the entire flight envelope. The performance of the designed autopilots is checked via a comparison study and a challenging intercept scenario. These performance test results clearly demonstrate the merit of the proposed designs.

The Analysis of a Generic Air-to-Air Missile Simulation Model

Abstract: 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 aircraft9s 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 missile9s 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.

A chronology of the missile technology control regime

Abstract: The Missile Technology Control Regime (MTCR) is an informal, non-treaty association of states that have an established policy or interest in limiting the spread of missiles and missile technology. The MTCR's origins date back to the 1970s, when the U.S. government became aware of dangers posed by the missile programs of developing nations. Several events, including South Korea's 1978 ballistic missile test, Iraq's attempt in 1979 to purchase retired rocket stages from Italy, India's July 1980 SLV-3 test, and the former German firm OTRAC's 1981 testing of a rocket in Libya, contributed particularly to U.S. apprehensions. The concerns of the United States were translated into a Reagan administration initiative that resulted ultimately in an agreement by seven founding members to limit the spread of missiles and missile technology and in the release of guidelines on April 16, 1987. According to the guidelines, the MTCR's original purpose was to "reduce the risks of nuclear proliferation by placing controls on equipment and technology transfers which contribute to the development of unmanned, nuclear-weapon delivery systems." Over time, that goal was expanded to "limit the risks of proliferation of weapons of mass destruction by controlling transfers that could make a contribution to delivery systems for such weapons." The MTCR currently provides the central institutional arrangement, as well as the base international norm, for dealing with missile proliferation. But while the international community now recognizes the spread of missiles and missile technology as a crucial security issue, the sweeping political changes witnessed over the last three years demand a re-examination of the regime's focus, strengths, weaknesses, and ability to combat missile proliferation in a new, rapidlychanging international order. China's and North Korea's continuing aid to foreign states' missile programs increases the importance that a well functioning regime is in place to deal with missile proliferation issues. This report is intended to provide the necessary background data with which to undertake this reassessment.

Air-based vertical launch ballistic missile defense

Abstract: An air-based vertical launch system is described by means of which ballistic missile defense can be achieved effectively from a large aircraft. A method for ensuring safe missile egress is proposed. A method for ensuring that the missile strikes the ballistic missile payload section is also proposed. Together, the air basing method employing vertical (or near-vertical) launch and semi-active laser guidance yield an affordable and operationally effective missile defense against both tactical and long-range ballistic missiles. The affordability of missile defense is enhanced by the ability of an aircraft equipped with a vertical launcher to simultaneously carry out several defensive and offensive missions and to provide other capabilities such as satellite launch at other times. Methods for employing an aircraft equipped with a vertical (or near-vertical launcher) and one or more of the proposed egress assurance mechanisms in offensive ground attack missions, mine laying, and satellite launch missions are also proposed.