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Robust Control of a Deformable Mirror for Adaptive Optics Systems
Dingan Song[1,2,3,4], Xinyang Li[1,3], Zhenming Peng[2]
2017
会议名称2017 2nd International Conference on Control, Automation and Artificial Intelligence (CAAI 2017)-Advances in Intelligent Systems Research
卷号134
页码42-52
摘要To improve the robust stability of adaptive optics system, H synthesis has been introduced to design the controller. H synthesis has advantages to deal with unmodelled dynamic of plant and to ensure the optimal performance in tracking the desired input. To simplify the design of controller, Singular Value Decomposition is adopted to uncouple the channels. This paper first analyzes the frequency responses of the H synthesis and integrator in uncoupled channels. The results indicate that H synthesis can increase the phase margin, which explain that the stability of adaptive optics is improved. Then the simulation of atmospheric turbulence correction is analyzed to testify the performance of adaptive optics. The results show that both integrator and H synthesis can obtain a nearly same satisfying performance, but the former achieves a lower control voltage to correct wavefront than the latter. It validates that H synthesis has a better robustness to deal with the disturbance than integrator. That is to say, H synthesis is able to improve the stability of adaptive optics system.
关键词H synthesis adaptive optics atmospheric correction
语种英语
EI分类号2017-2140
文献类型会议论文
条目标识符http://ir.ioe.ac.cn/handle/181551/9008
专题自适应光学技术研究室(八室)
作者单位1.Key Laboratory on Adaptive Optics, Chinese Academy of Sciences, Chengdu, Sichuan, China
2.University of Electronic Science and Technology of China, Chengdu, Sichuan, China
3.Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu, Sichuan, China
4.University of Chinese Academy of Sciences, Beijing, China
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Dingan Song[1,2,3,4], Xinyang Li[1,3], Zhenming Peng[2]. Robust Control of a Deformable Mirror for Adaptive Optics Systems[C],2017:42-52.
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