Missile guidance and pursuit

TL;DR: In this paper, the authors proposed guidance laws to intercept targets at a desired impact angle, from any initial heading angle, without exhibiting any singularity, by selecting interceptor's lateral acceleration to enforce nonsingular terminal sliding mode on a switching surface designed using nonlinear engagement dynamics.

TL;DR: By simultaneously tracking the position and orientation of a dragonfly’s head and body during flight, this work provides evidence that interception steering is driven by forward and inverse models of dragonfly body dynamics and by models of prey motion.

TL;DR: In many advanced guidance applications, it is required to intercept the target from a particular direction, that is, achieve a certain impact angle as discussed by the authors. But this is not the case in our case.

TL;DR: In this paper, an analytic solution for the time-to-go of the pure proportional navigation guidance law against a stationary target is derived considering full nonlinear engagement kinematics without near-collision course approximation.

TL;DR: Two minimum-time trajectories are developed for use as a time-to-go algorithm for a missile controlled by a linear-quadratic guidance law and give low miss distances for a wide range of intercept geometries including those with large off-boresight angles.

TL;DR: In this paper, a full-state feedback guidance law is synthesized against a target performing a barrel roll maneuver, and compared with the performance of proportional navigation (PN) for minimum and non-minimum phase missiles.

TL;DR: The results show that the proposed guidance law is far superior to the guidance law that employs only augmented proportional navigation throughout the interception course, in regard to extending the launch boundaries or minimizing the interception time.

TL;DR: For a given stabilization loop gain, faster guidance system time constants can be achieved with LQS reconstruction, thus enabling the guidance system to achieve more accurate hominq than other implementations.