Cooperative guidance law for intra-salvo tracking

This paper is concerned with cooperative geometrical guidance of two missiles pursuing a single maneuvering target. The scenario of interest is where both missiles are launched from about the same location and are heading toward the same target at different interception times. The goal of the guidance law, as presented in this paper, is to reduce the variability of the relative look angle between the two missiles in order to improve communication between the missiles, during the engagement. A cooperative guidance law is derived based on a linear quadratic representation of the problem, and the implementation of the guidance law involves the solution of a matrix differential Ricatti equation. The performance of the cooperative guidance law is investigated using linear and nonlinear planar simulations. It is shown that the look angle variability can be controlled while maintaining good miss distance performance.