基于目标加速度方向观测的微分对策制导律

针对延迟信息条件下的机动目标拦截问题,研究了一种考虑目标加速度方向观测的微分对策制导律。首先,针对引入目标方向观测信息末制导博弈问题,建立了微分对策数学模型。随后,利用状态依赖黎卡提方程求解微分对策问题,得到包含无延迟目标机动项的微分对策制导律,可以更为有效地拦截机动目标。最后,在延迟信息条件下,利用目标加速度方向观测的方法补偿延迟的目标加速度,再将补偿后的目标加速度信息取代无延迟的目标加速度,得到延迟信息条件下考虑目标加速度方向观测的微分对策制导律。仿真结果表明,新的制导律可以在延迟信息条件下有效地拦截机动目标。

Differential Games Guidance Law with Observation of Target's Acceleration Orientation

For the problem of intercepting a maneuvering target with delayed information, a differential-games based guidance law with observation of target''s acceleration orientation is studied. First, for the problem of terminal differential games guidance with observation of target''s acceleration orientation, the model of the differential games guidance is built. Then, the differential game is solved by the way of state-dependent Riccati equation. A differential-games based guidance law with target''s acceleration is achieved, which intercepts maneuvering targets better. Finally, under assumptions of delayed target acceleration, by the way of observing target''s acceleration orientation, a more accurate target acceleration is achieved. Replacing the target''s acceleration with no delay with compensated acceleration, a differential-games based guidance law with observation of target''s acceleration orientation is achieved. The simulation results shows that the new guidance law can intercepts maneuvering targets better with delayed target'' s acceleration.