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题名:
Accuracy analysis of centroid calculated by a modified center detection algorithm for Shack-Hartmann wavefront sensor
作者: Li, Huaqlang1,2; Song, Helun1,2; Rao, Changhui1; Rao, Xuejun1
刊名: OPTICS COMMUNICATIONS
出版日期: 2008-02-15
卷号: 281, 期号:4, 页码:750-755
关键词: adaptive optics ; Shack-Hartmann ; centroid
文章类型: Article
英文摘要: The accuracy of the Shack-Hartmann wavefront sensor for measuring the wavefront distortion is mainly dependent upon the measuring accuracy of the centroid of each spot. A modified center detection algorithm, which uses some power from the photon events of each pixel instead of photon events themselves, is analyzed theoretically and the computer simulations are given. The results show that photon noise error and sampling error increases as the power value goes up; and to some powers, the readout noise and background noise error decrease. An experiment is described through which the optimum power can be obtained. (c) 2007 Elsevier B.V. All rights reserved.
WOS标题词: Science & Technology ; Physical Sciences
类目[WOS]: Optics
研究领域[WOS]: Optics
收录类别: SCI
语种: 英语
WOS记录号: WOS:000252980800038
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ioe.ac.cn/handle/181551/3237
Appears in Collections:光电技术研究所被WoS收录文章_期刊论文

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作者单位: 1.Chinese Acad Sci, Inst Opt & Elect, Chengdu 610209, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China

Recommended Citation:
Li, Huaqlang,Song, Helun,Rao, Changhui,et al. Accuracy analysis of centroid calculated by a modified center detection algorithm for Shack-Hartmann wavefront sensor[J]. OPTICS COMMUNICATIONS,2008,281(4):750-755.
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