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题名:
Accuracy analysis on centroid estimation algorithm limited by photon noise for point object
作者: Chen, Hongli1,2; Rao, Changhui1
刊名: OPTICS COMMUNICATIONS
出版日期: 2009-04-15
卷号: 282, 期号:8, 页码:1526-1530
关键词: Centroid estimation algorithm ; Cramer-Rao lower bound ; Photon noise
文章类型: Article
英文摘要: The variance of the position of point object because of photon noise for centroid estimation algorithm is derived for the first time when the background cannot be eliminated by threshold. On this foundation, the accuracy of centroid estimation algorithm is analyzed by comparing its estimated efficiency (the ratio of the Cramer-Rao lower bound of point object and the variance for centroid algorithm) based on the classic estimation theory. The results indicated that the following factors influence the accuracy of centroid estimation algorithm: SBR (the ratio of the outputs from the signal light and the background), the Gaussian width of signal spot and the size of detected window. The effects of these factors are also described. Crown Copyright (C) 2009 Published by 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:000264585500006
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ioe.ac.cn/handle/181551/3251
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 Univ, Beijing 100039, Peoples R China

Recommended Citation:
Chen, Hongli,Rao, Changhui. Accuracy analysis on centroid estimation algorithm limited by photon noise for point object[J]. OPTICS COMMUNICATIONS,2009,282(8):1526-1530.
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