Fixed-Time Cooperative Guidance for Salvo Attack: A Leader-Followers Approach

In this paper, a fixed-time salvo attack guidance scheme with impact angle constraint on maneuvering target is proposed for multiple missiles by using the cooperative control strategy. A fixed-time extended state observer is introduced to accurately estimate the target accelerations. The proposed guidance scheme is divided into parts, that is, the guidance law on the normal direction of the line of sight (LOS) and that along the LOS direction, of which the former one ensures the LOS angle converge to the desired value in fixed-time, and the latter one ensures the relative range consensus error converges to origin in fixed time, so as to achieve the salvo attack. Simulation results are given to demonstrate the effectiveness of the proposed scheme.