拦截机动目标自适应反馈线性化末制导律  

Adaptive Terminal Guidance Law Based on Feedback Linearization for Maneuvering Targets

作　　者：袁丽英[1,2] 李杰[3] 李士勇[1] 

机构地区：[1]哈尔滨工业大学航天学院,黑龙江哈尔滨150001 [2]哈尔滨理工大学自动化学院,黑龙江哈尔滨150080 [3]北京理工大学宇航科学技术学院,北京100081

出　　处：《北京理工大学学报》2009年第5期386-389,共4页Transactions of Beijing Institute of Technology

基　　金：国家自然科学基金资助项目(60773065)

摘　　要：针对采用反馈线性化制导律拦截机动目标时,需要相对运动模型精确,对参数不确定无法保证系统鲁棒性的问题,提出一种自适应反馈线性化制导律设计方法.将目标机动加速度视为未知量,建立拦截器与目标的非线性相对运动模型.应用反馈线性化和模型参考自适应理论获得制导律,同时对目标加速度进行估计.该制导律形式简单,不需要知道目标精确的加速度信息.仿真结果表明该制导律能完成不确定机动目标的拦截.An adaptive terminal guidance law based on feedback linearization and model reference adaptive control is developed for intercepting maneuvering targets to cope with inaccurate parameters in relative motion equation. The nonlinear relative dynamics between the interceptor and the target is analyzed with the target accelerations viewed as unknown parameters. The guidance law is quite simple and exact information of the target acceleration can be left unknown. Numerical simulations showed that this guidance law can implement efficiently interception for uncertain maneuver.

关 键 词：空间拦截 反馈线性化 自适应控制 末制导律 

分 类 号：V448.22[航空宇航科学与技术—飞行器设计]