一种变结构自适应空间拦截导引规律设计

Design of Variable Structure Adaptive Guidance Law for Space Interception

在假设导弹和目标的相对距离及相对速度可测的前提下,设计了一种变结构自适应空间拦截导引规律。这种导引规律只要求目标加速度的变化范围已知,对目标的加速机动以及强非线性因素的影响具有很强的适应性。通过计算机数值仿真验证了导弹与目标的相对视线角的变化率最终趋向于零,导弹与目标的相对距离也趋向于零。数值仿真验证了所设计的导引规律的正确性和有效性,为机动目标空间拦截先进导引规律的研究提供了理论参考。

The measurability of the relative distance and velocity between missile and target being assumed, a kind of variable structure adaptive guidance law is designed. With only the variation range of the maneuvering acceleration of the target defined, the guidance law has strong robustness against maneuvering of the target and the influence of nonlinearity. Computer numerical simulation shows that both the relative distance and the line-of-sight rate approach zero. The numerical simulation verifies the correctness and effectiveness of the presented guidance law. The research provides a theoretical references for design of advanced guidance law for space interception.