| 星间光通信中压电偏转系统控制算法研究 |
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| 引用本文： | 李祥之,孙兆伟,路菲,吴国强.星间光通信中压电偏转系统控制算法研究[J].宇航学报,2007,28(4):941-945. |
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| 作者姓名： | 李祥之 孙兆伟 路菲 吴国强 |
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| 作者单位： | 1. 哈尔滨工业大学卫星技术研究所,哈尔滨,150001
2. 哈尔滨工业大学航天学院航天工程系,哈尔滨,150001 |
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| 摘 要： | 针对星间光通信中压电偏转系统通道间强耦合和系统状态量无法得到的问题，提出了分散式李亚普诺夫自适应控制系统。该系统采用分散式控制技术，引入非线性和参数漂移误差项，使通道间耦合作用动力学模型更加精确，增加自适应反馈和自适应前馈控制项，以提高控制自适应性和跟踪精度，并结合李亚普诺夫稳定性理论确定各自适应参数以保证系统的稳定性。仿真结果表明了该控制器可有效提高跟踪精度，抑制通道间耦合和卫星平台振动，从而证明了本文所提出控制方案的有效性和可靠性。
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| 关 键 词： | 星间光通信 压电偏转 分散式控制 稳定性 |
| 文章编号： | 1000-1328（2007）04-0941-05 |
| 修稿时间： | 2007-03-302007-05-11 |
Research on the Control Algorithm of the Piezo-Electric Steering System for Optic Intersatellite Communications |
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| LI Xiang-zhi,SUN Zhao-wei,LU Fei,WU Guo-qiang.Research on the Control Algorithm of the Piezo-Electric Steering System for Optic Intersatellite Communications[J].Journal of Astronautics,2007,28(4):941-945. |
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| Authors: | LI Xiang-zhi SUN Zhao-wei LU Fei WU Guo-qiang |
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| Institution: | 1. Research Center of Satellite Technology, School of Astronautics, Harbin Institute of Technology, Harbin 150001, China ; 2. Department of Aerospace Engineering, Harbin Institute of Technology, Harbin 150001, China |
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| Abstract: | The Lyapunov-based decentralized adaptive control system is presented because the piezo-electric steering system is complex dynamics and can not know status of the controlled plant. The decentralized control technology is adopted. The non-linear error and parameter drift error are introduced to make the dynamic model more exact and the adaptive feedback and forward control terms are added to improve the control adaptability and tracking precision. The adaptive parameters are decided by the Lyapunov function in order to assure the system is stable. The control project in this paper are proved to be valid and reliable according to the simulation results. |
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| Keywords: | Optical intersatellite communication Piezo-electric steering Decentralized control Stability |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
