基于有限时间H_2性能指标的导弹机动突防策略设计  

Finite-Time H_2 Performance Measure-Based Strategy Design

作　　者：郭杨[1,2] 姚郁[1] 王仕成[2] 贺风华[1] 

机构地区：[1]哈尔滨工业大学控制与仿真中心,哈尔滨150080 [2]第二炮兵工程学院科研部,西安710025

出　　处：《宇航学报》2010年第10期2289-2294,共6页Journal of Astronautics

基　　金：国家自然科学基金(60674043)

摘　　要：针对导弹机动突防策略设计中存在的对主要性能指标缺乏综合评价手段的问题,基于有限时间H2性能指标,给出系统性能分析与设计的准则,综合考虑脱靶量和机动消耗的能量,设计了脱靶量/能量最优的机动形式。考虑拦截器制导律信息存在不确定性,提出了有限时间鲁棒H2性能分析方法与有限时间鲁棒H2保性能控制准则,设计了在拦截器制导律信息存在不确定性时的保性能机动。结果表明,突防导弹在拦截末段的大幅度机动最为有效,能够以较小的能量代价换取较大的拦截脱靶量。Based on finite-time H2 performance measure,a criterion of analysis and design is given and a type of optimal maneuver is designed in consideration of both energy cost and miss distance. In the light of an interceptor guidance law with uncertainties,a method of finite-time robust H2 performance analysis and a guaranteed cost control criterion are derived,and the guaranteed performance maneuver is designed under the condition of interceptor guidance law with uncertainty. The results show that a substantial maneuvering near the end of penetration process is most effective,and able to cause large miss distance by minimum energy consumption.

关 键 词：机动突防 有限时间 H2控制 保性能控制 

分 类 号：V448.1[航空宇航科学与技术—飞行器设计]