摘要
本文研究将改进的推广Ｋａｌｍａｎ滤波器（ＭＥＫＦ）应用于导弹被动制导问题。为了提高系统的可观性，我们采用一种双重指标来设计最优导引律。仿真结果表明，如果系统状态的均值较高，波动较小，那么ＭＥＫＦ的估计精度明显优于推广Ｋａｌｍａｎ滤波器（ＥＫＦ）。
A modified extended Kalman filter(MEKF)is proposed and applied to passive missile guidance We adopt a dual control method to design guidance law for enhancing the observability content of the control system Simulation results indicate that if the expectation of the system state is relatively large and the wave of the state is relatively minor,the performance of the MEKF is much better than that of the extended Kalman filter(EKF).
出处
《宇航学报》
EI
CAS
CSCD
北大核心
1998年第2期7-12,共6页
Journal of Astronautics
基金
国家教委博士点基金
关键词
KALMAN
滤波器
导弹
被动制导
导引律
Extended kalman filter Modified extended kalman filter Passive missile guidance Dual control guidance law
