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.

Method and apparatus for modulating a pyrotechnic tracer

Abstract: A system for modulating the radiation emitted by a pyrotechnic source of the tracer type emitting neither gases nor particles and mounted on a spinning missile guided along an optical path by means of a ground-based receiver device, in order to improve the transmitted-signal/background noise ratio, in which said radiation emitter source is placed at the rear of the missile so that said radiation be emitted substantially along the spin axis of the missile as the same follows its trajectory and be filtered by means of a polarizing filter rotating with the missile; and in which a second polarizing filter is placed in the optical path of said ground-based receiver device, the effect of which is to pick up the circularly polarized radiation emitted by said first filter and cause it to be sinusoidally modulated at a frequency dependent on the resultant relative rotation speed between the two filters; It results that the ratio of the modulated signal emitted by the emitter source to the unmodulated said background noise is considerably increased and permits ready processing of the transmitted signal to allow optical command guidance of the missile

Method and system for defense against incoming rockets and missiles

Abstract: An interception system for intercepting incoming missiles and/or rockets including a launch facility, a missile configured to be launched by the launch facility, the missile having a fragmentation warhead, a ground-based missile guidance system for guiding the missile during at least one early stage of missile flight and a missile-based guidance system for guiding the missile during at least one later stage of missile flight, the missile-based guidance system being operative to direct the missile in a last stage of missile flight in a head-on direction vis-a-vis an incoming missile or rocket.

Practical guidance law controlling impact angle

Abstract: Impact angle is defined as the angle between the velocity vectors of a missile and a target at the instance of interception. The objective of the impact angle control guidance (IACG) law is to guide the missile into a collision course with a specified impact angle. In this paper, a new IACG law considering practical implementation is proposed. By selecting parameters properly, the proposed guidance law can be applied to various engagement situations such as the rear-chase case and the face-to-face case. On the basis of the backstepping control approach, the proposed guidance law only requires information about the impact angle, the line-of-sight rate, and the estimated time-to-go. These features improve the applicability of the proposed guidance law to the real systems. To verify the performance of the proposed guidance law, two-dimensional engagement problem is considered. Numerical simulation results demonstrate that the proposed guidance law is effective for controlling the impact angle.

A comparison of expected flight times for intercept and pure pursuit missiles

Abstract: The relative merits of intercept and pure pursuit homing are investigated by comparing the expected flight times to a nonmaneuvering target. The analysis is performed for the initial target heading angle uniformly distributed with arbitrary mean and variance. Two specific examples illustrate that intercept homing holds little statistical advantage over pure pursuit homing except when the speed advantage of the missile is very small.

Electromagnetic missile launcher

Abstract: A technique for launching a missile that avoids some of the costs and disadvantages for doing so in the prior art. In particular, the illustrative embodiment of the present invention uses an electromagnetic catapult to throw the missile clear of the launch platform—with sufficient velocity to attain aerodynamic flight—before the missile's engine is ignited.