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  

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

作　　者：商巍[1] 唐胜景[1] 郭杰[1] 马悦悦[1] 张尧[1] 

机构地区：[1]北京理工大学飞行器动力学与控制教育部重点实验室

出　　处：《兵工学报》2015年第4期660-667,共8页Acta Armamentarii

基　　金：国家自然科学基金项目(11202024)

摘　　要：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。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.

关 键 词：控制科学与技术 制导律 自适应模糊逼近 动态面滑模控制 自动驾驶仪特性 

分 类 号：TG156[金属学及工艺—热处理]