Error analysis of CCD-based point source centroid computation under the background light

被引：68
作者：
Ma, Xiaoyu [1 ,2 ,3 ]
Rao, Changhui [1 ,2 ]
Zheng, Hanqing [1 ,2 ,3 ]
机构：
[1] Chinese Acad Sci, Inst Opt & Elect, Lab Adapt Opt, Chengdu 610209, Peoples R China
[2] Chinese Acad Sci, Key Lab Adapt Opt, Chengdu 610209, Peoples R China
[3] Chinese Acad Sci, Grad Univ, Beijing 100039, Peoples R China
来源：
OPTICS EXPRESS | 2009年 / 17卷 / 10期
关键词：
Errors;
D O I：
10.1364/OE.17.008525
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The CCD-based point source centroid computation (PSCC) error under the background light is analyzed integrally in theory, numerical simulation and experiment. Furthermore, a comprehensive formula of the PSCC error caused by the diversified error sources is put forward. The optimum threshold to reduce the effects of all the error sources to a minimum is selected. The best threshold level is (N-B) over bar + 3 sigma(B), where (N-B) over bar is the average value of the error sources and sigma(B) is the mean-square value of the fluctuation of the error sources. The simulation and experiment results are in great accordance with the theoretical analysis. (C) 2009 Optical Society of America
引用
收藏
页码：8525 / 8541
页数：17
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