中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Error analysis of correlating Shack-Hartmann wave-front sensor for a point source

文献类型:期刊论文

作者Chen Lin-Hui1,2,3; Rao Chang-Hui1,2
刊名ACTA PHYSICA SINICA
出版日期2011-09-01
卷号60期号:9
关键词correlating Shack-Hartmann wavefront sensor correlation algorithm centroiding algorithm measuring error
英文摘要In Shack-Hartmann wavefront sensor(SH-WFS) based adaptive optics system, the centroiding algorithm is usually used to estimate the centroid of a point source spot. But the detecting accuracy of the centroiding algorithm is affected by many factors such as threshold selection, so that the centroid position of the spot cannot be evaluated accurataly under the condition of low signal-to-noise ratio (SNR). Comparatively the correlating algorithm for Shack-Hartmann wave front-sensing is more robust because it need not reduce the thresholding. In this paper, based on the the principle of the correlating SH-WFS, the measurement error of the correlating SH-WFS is derived by building up the noise model of the correlating SH-WFS. The influences of spot size, photon noise, read out noise and background light noise on the measurement of the correlating SH-WFS are analyzed systematically. The numerically simulation results and the experimental results are consistent well with the theoretical analyses.
WOS标题词Science & Technology ; Physical Sciences
类目[WOS]Physics, Multidisciplinary
研究领域[WOS]Physics
关键词[WOS]CENTROID COMPUTATION ; ADAPTIVE OPTICS ; MIRROR ; LIGHT
收录类别SCI
语种英语
WOS记录号WOS:000295114000025
公开日期2015-12-24
源URL[http://ir.ioe.ac.cn/handle/181551/3410]  
专题光电技术研究所_光电技术研究所被WoS收录文章
作者单位1.Chinese Acad Sci, Key Lab Adapt Opt, Chengdu 610209, Peoples R China
2.Chinese Acad Sci, Inst Opt & Elect, Chengdu 610209, Peoples R China
3.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714
Chen Lin-Hui,Rao Chang-Hui. Error analysis of correlating Shack-Hartmann wave-front sensor for a point source[J]. ACTA PHYSICA SINICA,2011,60(9).
APA Chen Lin-Hui,&Rao Chang-Hui.(2011).Error analysis of correlating Shack-Hartmann wave-front sensor for a point source.ACTA PHYSICA SINICA,60(9).
MLA Chen Lin-Hui,et al."Error analysis of correlating Shack-Hartmann wave-front sensor for a point source".ACTA PHYSICA SINICA 60.9(2011).

入库方式: OAI收割

来源:光电技术研究所

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