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题名:
Prediction control algorithm for close-loop adaptive optical system
作者: Yan, Zhao-Jun1,2,3; Li, Xin-Yang1,2; Rao, Chang-Hui1,2
出版日期: 2013
会议名称: 6th IFAC Symposium on Mechatronic Systems, MECH 2013
会议日期: 2013
学科分类: Adaptive optics - Forecasting - Mechatronics - Optical systems - Two term control systems
DOI: 10.3182/20130410-3-CN-2034.00068
中文摘要: To reduce the effect of servo lag error in the close-loop adaptive optics system (AOS), a prediction control algorithm (PCA) is proposed in this paper. We describe a linear predictive controller that uses the historical voltages of deformable mirror to predict their future voltages in advance. The parameters of the predictor are optimized in real time by a modified Recursive Least-Square (RLS) algorithm. Numerical simulations are carried out to show the significant improvements brought by the predictor. The close-loop Strehl Ratio of the residual wave-front error and the power spectrum density of the residual voltages of deformable mirror are calculated as the evaluation criterions. The comparison results between the PCA and the classical proportional integral (PI) control algorithm show that the residual errors caused by servo lag in the system could be more effectively reduced by using the PCA than using the classical PI control algorithm. In addition, the control bandwidth of AOS is improved by using the PCA. © 2013 IFAC.
英文摘要: To reduce the effect of servo lag error in the close-loop adaptive optics system (AOS), a prediction control algorithm (PCA) is proposed in this paper. We describe a linear predictive controller that uses the historical voltages of deformable mirror to predict their future voltages in advance. The parameters of the predictor are optimized in real time by a modified Recursive Least-Square (RLS) algorithm. Numerical simulations are carried out to show the significant improvements brought by the predictor. The close-loop Strehl Ratio of the residual wave-front error and the power spectrum density of the residual voltages of deformable mirror are calculated as the evaluation criterions. The comparison results between the PCA and the classical proportional integral (PI) control algorithm show that the residual errors caused by servo lag in the system could be more effectively reduced by using the PCA than using the classical PI control algorithm. In addition, the control bandwidth of AOS is improved by using the PCA. © 2013 IFAC.
收录类别: Ei
语种: 英语
ISSN号: 14746670
文章类型: 会议论文
页码: 276-284
Citation statistics:
内容类型: 会议论文
URI标识: http://ir.ioe.ac.cn/handle/181551/7800
Appears in Collections:自适应光学技术研究室(八室)_会议论文

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作者单位: 1. Laboratory of Adaptive Optics, IOE, Chinese Academy of Sciences, Chengdu, 610209, China
2. Key Laboratory of Adaptive Optics, Chinese Academy of Sciences, Chengdu, 610209, China
3. Graduate School of Chinese Academy of Sciences, Beijing, 100039, China

Recommended Citation:
Yan, Zhao-Jun,Li, Xin-Yang,Rao, Chang-Hui. Prediction control algorithm for close-loop adaptive optical system[C]. 见:6th IFAC Symposium on Mechatronic Systems, MECH 2013. 2013.
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