摘要
针对目标机动情况下的直/气复合控制导弹直接力开启时机的确定问题进行了研究.根据末制导系统有限时间、强时变及非零初始条件的特点,将末制导系统模型描述成线性时变系统模型.在此基础上,结合有限时间广义H2范数方法,给出了末制导系统性能分析方法及性能准则.进一步分别分析了目标CA机动、Singer机动、Weaving机动情况下直接力开启时机对脱靶量的影响,为直接力开启时机的确定提供了依据.
The determination of switch time of lateral thrust for the Mended control missiles in the situation of target maneuver was researched. Firstly, the characteristics of finite time, non-zero initial conditions and strong time-variation, were analyzed for the terminal guidance system. Based on this, the linear time- varying （LTV） model was established for the terminal guidance system. Secondly, the finite time generalized H2 performance measure and the corresponding criterion were given for a blended control system. Finally, the relationship between zero effort miss distance （ZEM） and switch time of lateral thrust was analyzed under different target maneuver （CA, Singer, Weaving）, which provide the basis for the determination of switch time of lateral thrust for the blended control missiles.
基金
国家自然科学基金(61104193
61074160)
中央高校基本科研业务费专项资金(HIT.NSRIF.2012032)资助
