基于零脱靶量设计的变结构末制导律

对于三维目标拦截问题,提出了一种新的具有强鲁棒性的末端导引律。该方法将目标的机动加速度视为已知的有界扰动,考虑了导弹自动驾驶仪的动态特性,基于导弹对目标的零脱靶量综合设计了非线性三维变结构鲁棒末制导律。理论分析与数字仿真表明这种制导律不但具有优良的弹道特性,而且对目标机动都具有很强的鲁棒性和适应性,同时方法简单,易于理解,便于工程应用。

Variable Structure Terminal Guidance Law Based on Zero Miss-distance

A new terminal guidance law with strong robustness was proposed in the case of a three-dimensional interception. Considering missile's dynamics of autopilot, a nonlinear adaptive variable structure guidance law was designed based on the zero-miss-distance between missile and target, and at the same time the maneuvering acceleration of target was regarded as a disturbance with known boundary. Theoretical analysis and simulating results show that the designed guidance law has good performance and the algorithm has strong robustness and adaptability to target maneuver. The algorithm is very simple, so it more convenient for comprehension and practical implementation.