一种三维非线性免疫变结构制导律  

3D Nonlinear Immune Variable-structure Guidance Law

作　　者：周洋[1] 李刚[1] 吉阳[1] 谢理[1] 

机构地区：[1]空军工程大学防空反导学院,西安710051

出　　处：《弹道学报》2016年第1期92-96,共5页Journal of Ballistics

摘　　要：针对导弹拦截过程中对目标机动未知的问题,将滑模变结构理论与免疫反馈理论相结合,设计了一种非线性免疫自适应变结构制导律。该方法首先根据李亚普诺夫稳定性理论,在滑膜变结构制导律的基础上,对目标的机动加速度进行自适应估计,消除了拦截过程中机动加速度干扰的非线性影响。其次应用免疫反馈的抗干扰和鲁棒性能,对滑模变结构控制中出现的抖振现象进行抑制和补偿。仿真结果表明,该制导律在目标作机动变速逃逸时仍能取得较好的拦截效果。Aiming at the unknown maneuver of target in the interception process of missile,the immune control was combined with sliding mode control,and a method of nonlinear immune adaptive variablestructure guidance law was proposed. According to the Lyapunov＇s stability theory,the adaptability estimation of maneuver acceleration of target was carried out based on sliding-mode variable-structure guidance law,and the nonlinear influences caused by the interference of maneuver acceleration were eliminated.The anti-interference and the robustness of immunity feedback were used to control and compensate the buffeting appearing in sliding-mode variable-structure. Simulation result shows that this guidance law remains effective when the maneuver velocity of target is variable.

关 键 词：导弹 制导律 非线性系统 自适应 免疫系统 

分 类 号：TJ765.3[兵器科学与技术—武器系统与运用工程]