目标末端逃逸的变结构制导律研究

Study on a Variable Structure Guidance Law Against the Escape Maneuvering Target at Endgame

在变结构控制理论的基础上,以零化视线角速度为滑动面设计了一种应对弹道末端目标机动逃逸的变结构制导律,分析和推导了该制导律对目标机动的鲁棒性,并得出弹道收敛的条件。仿真结果表明,该制导律算法对目标的不同的末端逃逸方式具有强的鲁棒性,保证了较高的制导精度。

For the case of the escape maneuver of the target in the endgame phase of the missile , a guidance law of variable structure, which is based on the slip plane of zeroing LOS （ Line of Sight） anglar velocity, is presented in this paper. Based on this guidance law, the robust conditions of the ballistic convergence have been deduced and established. The simulation results show that the algorithm has strong robustness to the different kinds of the escape maneuvering way of the target.