空气动力学学报2011,Vol.29Issue(2):252-256,5.
飞行器RCS控制力矩辨识方法研究
Research on the RCS control moment parameters identification for flight vehicle
摘要
Abstract
For trans-atmospheric flight vehicle controlled with RCS( Reaction Control System) like spaceship return capsule, the real control moment of RCS in flight condition is very important in the design of control laws. In this paper, the method to obtain the RCS control moment parameters by the use of system identification technique is proposed, the algorithm and mathematic model are derived based on maximum likelihood criterion and Newton-Raphson iteration. The results from simulated data identification and a certain return capsule flight data identification show that the algorithm developed in this paper is really effective not only in obtaining the aerodynamic moment coeffcient parameters but also the RCS control moment parameters.关键词
飞行器/系统辨识/RCS控制力矩/气动力矩/最大似然准则Key words
trans-atmospheric flight vehicle/ system identification/ RCS control moment/ aerodynamic moment/ maximum likelihood criterion分类
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和争春,何开锋..飞行器RCS控制力矩辨识方法研究[J].空气动力学学报,2011,29(2):252-256,5.基金项目
空气动力学国家重点实验室基金(SKLA2009A0103) (SKLA2009A0103)