一种具有速度交汇角约束的最优导引律

An Optimal Guidance Law with Velocity Rendezvous Angle Constraint

为了增强拦截弹对目标的精确打击效果,在末制导段控制拦截弹和目标的速度交汇角是一种有效的措施。提出了一种具有速度交汇角约束的拦截弹最优导引律,能够同时对脱靶量和速度交汇角进行控制。与现有的具有角度约束的导引律不同,所提出的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。仿真结果证明了这种导引律的有效性。

In order to increase the effectiveness of interception missile for target attacking, control of velocity rendezvous angle is required in the terminal engagement. An optimal guidance law with velocity rendezvous angle constraint is proposed for the interception missile, which can control velocity rendezvous angle and terminal miss distance simultaneously. Different from previous research on this issue, the proposed law is suitable for intercepting high-speed maneuvering target. In addition, in the case of centimeter level miss distance, the proposed guidance law requires lesser guidance command to avoid command saturation near the terminal time. Numerical simulation result proved the effectiveness of the guidance law.