| 单测试质量无拖曳卫星无拖曳及姿态系统仿真及其控制研究 |
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| 引用本文： | 李洪银,胡明.单测试质量无拖曳卫星无拖曳及姿态系统仿真及其控制研究[J].天文学报,2011,52(6). |
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| 作者姓名： | 李洪银 胡明 |
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| 作者单位： | 1. 华中科技大学控制科学与工程系 武汉430074;华中科技大学物理学院 武汉430074
2. 华中科技大学物理学院 武汉430074 |
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| 摘 要： | 以ASTROD I (Astrodynamical Space Test of Relativity using Optical Devices I,单航天器天文激光动力学)为例介绍无拖曳卫星的结构及其工作原理.推导了其动力学方程,并在此基础上建立了卫星的动力学数值仿真器.将H2最优控制理论运用于以噪声压制为主要目的的无拖曳卫星控制系统的设计,通过传递函数法及数值法双重分析表明所设计的控制器能符合卫星的控制要求,同时表明在控制器设计过程中采用的线性化假设是适当的.
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| 关 键 词： | 航天器:仪器 方法:数值 |
Simulation and Controller Design for Drag-free and Attitude System of Single Test Mass Drag-free Satellite |
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| LI Hong-yin,HU Ming.Simulation and Controller Design for Drag-free and Attitude System of Single Test Mass Drag-free Satellite[J].Acta Astronomica Sinica,2011,52(6). |
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| Authors: | LI Hong-yin HU Ming |
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| Institution: | LI Hong-yin~(1,2) HU Ming~2 (1 Department of Control Science and Engineering,Huazhong University of Science and Technology,Wuhan 430074) (2 School of Physics,Wuhan 430074) |
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| Abstract: | Taking the ASTROD I mission as an example,the structure and principle of drag-free satellite are presented.We derive the dynamics of drag-free satellite and its test mass,based on which a numerical simulator is built for them.Then,H2 optimal strategy is used to develop the controller for the satellite to reduce the resulted noise.The comparison between the transfer function analysis and the periodogram of numerical simulation indicates that linearization of the dynamics is appropriate and the simulator is c... |
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| Keywords: | space vehicles:instruments methods:numerical |
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