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题名:
Error analysis for the Fourier domain offset estimation algorithm
作者: Wei, Ling1,2; He, Jieling1,3; He, Yi1,2; Yang, Jinsheng1,2; Li, Xiqi1,2; Shi, Guohua1,2; Zhang, Yudong1,2
刊名: OPTICS COMMUNICATIONS
出版日期: 2016-02-15
卷号: 361, 页码:110-115
关键词: Error analysis ; Offset estimation ; Shack-Hartmann wave-front sensor
DOI: 10.1016/j.optcom.2015.10.043
文章类型: Article
英文摘要: The offset estimation algorithm is crucial for the accuracy of the Shack-Hartmann wave-front sensor. Recently, the Fourier Domain Offset (FDO) algorithm has been proposed for offset estimation. Similar to other algorithms, the accuracy of FDO is affected by noise such as background noise, photon noise, and 'fake' spots. However, no adequate quantitative error analysis has been performed for FDO in previous studies, which is of great importance for practical applications of the FDO. In this study, we quantitatively analysed how the estimation error of FDO is affected by noise based on theoretical deduction, numerical simulation, and experiments. The results demonstrate that the standard deviation of the wobbling error is: (1) inversely proportional to the raw signal to noise ratio, and proportional to the square of the sub aperture size in the presence of background noise; and (2) proportional to the square root of the intensity in the presence of photonic noise. Furthermore, the upper bound of the estimation error is proportional to the intensity of 'fake' spots and the sub-aperture size. The results of the simulation and experiments agreed with the theoretical analysis. (C) 2015 Elsevier B.V. All rights reserved.
WOS标题词: Science & Technology ; Physical Sciences
类目[WOS]: Optics
研究领域[WOS]: Optics
关键词[WOS]: WAVE-FRONT SENSOR ; CENTROID COMPUTATION ; HARTMANN
收录类别: SCI
项目资助者: National Science Foundation of China(61108082) ; National Instrumentation Program (NIP)(2012YQ120080) ; National Hi-tech Support Project(2012BAI08B04)
语种: 英语
WOS记录号: WOS:000369229300020
ISSN号: 0030-4018
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ioe.ac.cn/handle/181551/3842
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, Key Lab Adapt Opt, Chengdu 610209, Peoples R China
2.Chinese Acad Sci, Inst Opt & Elect, Chengdu 610209, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100039, Peoples R China

Recommended Citation:
Wei, Ling,He, Jieling,He, Yi,et al. Error analysis for the Fourier domain offset estimation algorithm[J]. OPTICS COMMUNICATIONS,2016,361:110-115.
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