控制碰撞角度可以提高拦截弹的打击效果。文中提出了一种具有碰撞角约束的微分对策导引律,能够同时对脱靶量和碰撞角进行控制。把拦截弹和目标当作两个独立的受控对象,通过最小化代价函数同时得到了拦截弹的最优机动策略和目标的最优逃避策略。仿真结果表明,文中提出的微分对策导引律适用于拦截高速机动目标,而且在满足厘米级脱靶量的情况下,拦截弹在交汇点处不需要过大的横向加速度指令,从而避免指令被限幅。

Control of impact angle can considerably increase interceptor's lethality in terminal engagement. A differential game guidance law was proposed in this paper, which can achieve a specified impact angle as well as zero terminal miss distance. The adversaries in conflict were considered as two independent controlled objects, through minimizing the cost function, one can obtain the adversary's optimal maneuver strategy simultaneously. Simulation results show that the proposed guidance law is suitable for intercepting high-speed maneuvering target., and, centimeter level miss distance requires less guidance command to avoid command saturation near terminal time.