考虑自动驾驶仪特性的自适应模糊动态面滑模制导律设计

针对导弹拦截高机动性目标的问题，基于自适应模糊逼近策略和动态面滑模控制思想，提出了一种新型的拦截制导律。建立了考虑自动驾驶仪动态延迟特性的弹目相对运动方程，以零化视线角速率为出发点，设计了基于自适应趋近率的动态面滑模制导律，同时设计了综合视线角速率以及弹目距离的自适应模糊方法，对变结构项进行逼近。仿真结果表明，针对高机动性目标，该制导方法能够有效地去除抖振，并且具有良好的制导精度。针对导弹拦截高机动性目标的问题，基于自适应模糊逼近策略和动态面滑模控制思想，提出了一种新型的拦截制导律。建立了考虑自动驾驶仪动态延迟特性的弹目相对运动方程，以零化视线角速率为出发点，设计了基于自适应趋近率的动态面滑模制导律，同时设计了综合视线角速率以及弹目距离的自适应模糊方法，对变结构项进行逼近。仿真结果表明，针对高机动性目标，该制导方法能够有效地去除抖振，并且具有良好的制导精度。

Design of Adaptive Fuzzy Dynamic Surface Sliding-mode Guidance Law Considering Autopilot Lag

Based on adaptive fuzzy approach strategies and dynamic surface sliding mode control techniques, a novel interception guidance law is proposed for the problem that a missile attacks a high maneuvering target. Relative motion equations of missile and target are established accounting for autopilot lag. Based on the annihilating idea of the missile-target LOS(line-of-sight) angular velocity, a dynamic surface sliding mode guidance law is designed with adaptive reaching law. Meanwhile, the adaptive fuzzy method based on integrated the LOS angular velocity and missile-target distance is adopted to approach variable-structure term. The simulation results show that this law can remove chattering phenomenon. Moreover, this law has higher guidance precision to high maneuvering.