题名:  Adaptive optics correction experiment based on stochastic parallel gradient descent algorithm 
作者:  Chen Bo; Yang Huizhen; Li Xinyang; Jiang Wenhan

出版日期:  2009

会议名称:  Proceedings of SPIE

会议日期:  2009

通讯作者:  Chen Bo

中文摘要:  The stochastic parallel gradient descent (SPGD) algorithm is a promising control algorithm for adaptive optics (AO), which is independent of wavefront sensor and is used to correct the wavefront distortion by optimizing the system performance metric directly. In this paper an adaptive optics experiment system with 32 control channels is set up and the static phasedistortion correction experiment is carried out to research the efficiency and performance of SPGD algorithm. The quadratic sum of intensity and the mean radius are used as the system performance metric respectively in the experiment. The experiments results demonstrate that the adaptive optics using SPGD algorithm can correct the static phasedistortion successfully. The mean radius is more sensitive to the small perturbation voltage than quadratic sum of intensity. When the mean radius is used as the system performance metric at the beginning of the correction process, and then the encircled energy is used in succession, both the convergence rate and the stability are improved. 
英文摘要:  The stochastic parallel gradient descent (SPGD) algorithm is a promising control algorithm for adaptive optics (AO), which is independent of wavefront sensor and is used to correct the wavefront distortion by optimizing the system performance metric directly. In this paper an adaptive optics experiment system with 32 control channels is set up and the static phasedistortion correction experiment is carried out to research the efficiency and performance of SPGD algorithm. The quadratic sum of intensity and the mean radius are used as the system performance metric respectively in the experiment. The experiments results demonstrate that the adaptive optics using SPGD algorithm can correct the static phasedistortion successfully. The mean radius is more sensitive to the small perturbation voltage than quadratic sum of intensity. When the mean radius is used as the system performance metric at the beginning of the correction process, and then the encircled energy is used in succession, both the convergence rate and the stability are improved. 
收录类别:  Ei

语种:  英语

卷号:  7130

文章类型:  会议论文

内容类型:  会议论文

URI标识:  http://ir.ioe.ac.cn/handle/181551/7716

Appears in Collections:  自适应光学技术研究室（八室）_会议论文

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Recommended Citation: 
Chen Bo,Yang Huizhen,Li Xinyang,et al. Adaptive optics correction experiment based on stochastic parallel gradient descent algorithm[C]. 见:Proceedings of SPIE. 2009.


