| 飞行器RCS控制力矩辨识方法研究 |
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| 引用本文： | 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). |
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| 作者姓名： | 和争春 何开锋 |
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| 作者单位： | 空气动力学国家重点实验室,四川绵阳,621000;中国空气动力研究与发展中心,四川绵阳,621000 |
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| 基金项目： | 空气动力学国家重点实验室基金(SKLA2009A0103) |
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| 摘 要： | 对于依靠RCS(反作用控制系统)进行控制的返回舱等跨大气层飞行器,如何获得其在真实飞行条件下RCS的控制力矩一直是一个难题。本文提出了采用系统辨识技术得到RCS控制力矩的思路,研究建立了基于最大似然准则和牛顿-拉夫逊迭代算法的参数辨识算法模型。仿真辨识及对某飞船返回舱实际飞行数据的辨识结果表明,本文建立的方法是有效的,利用其能够对飞行器的气动力矩和RCS控制力矩同时进行有效辨识。
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| 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 |
Research on the RCS control moment parameters identification for flight vehicle |
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| HE Zheng-chun,HE Kai-feng.Research on the RCS control moment parameters identification for flight vehicle[J].Acta Aerodynamica Sinica,2011,29(2). |
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| Authors: | HE Zheng-chun HE Kai-feng |
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| Institution: | HE Zheng-chun1,2,HE Kai-feng1,2(1.State Key Laboratory of Aerodynamics,Mianyang Sichuan 621000,China,2.China Aerodynamics Research and Development Center,China) |
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| 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... |
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| Keywords: | trans-atmospheric flight vehicle system identification RCS control moment aerodynamic moment maximum likelihood criterion |
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