Three-dimensional cooperative guidance law based on dynamic coverage strategy

In this article, a three-dimensional cooperative guidance problem for highly maneuvering targets is investigated under the assumption of perfect information. Inspired by the coverage strategy, the cooperative guidance problem is decomposed into one-on-one guidance problems against predictive interception points. To expand the coverage area of each missile, these one-on-one guidance problems are formulated as flight path angle tracking problems, and the optimal error dynamics is extended to derive the guidance law analytically. In addition, through the introduction of the coverage probability model, the dynamic coverage strategy is proposed. The predictive interception points are updated online by maximizing the coverage probability, which aims to achieve successful interception despite variations in target acceleration. Furthermore, a switching strategy of the guidance command is designed for collision avoidance. Simulation results demonstrate that the missile group can cooperatively intercept a highly maneuvering target under the proposed guidance law.