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Dispersed-fringe-accumulation-based left-subtract-right method for fine co-phasing of a dispersed fringe sensor
Li, Yang1,2,3; Wang, Shengqian1,2; Rao, Changhui1,2
2017
发表期刊Applied Optics
ISSN1559-128X
卷号56期号:15页码:4267-4273
摘要In this paper, a dispersed-fringe-accumulation (DFA)-based left-subtract-right (LSR) piston estimation method (DFA-LSR), in which the dispersed fringe image is accumulated in the dispersed direction, and then the LSR method is used to estimate the piston error, is proposed for dispersed fringe sensors (DFS) in the fine co-phasing stage. The DFS is usually used to detect the piston errors (optical path difference) between different segmented mirrors or synthetic aperture telescopes. The DFA-LSR makes up for the shortcomings of the main peak position (MPP) method, which suffers from the constant offset in the pixel counts. The analysis and experiment results show that the proposed method can keep relatively better performance even at the condition of poor signal-to-noise ratio, compared with the MPP method in fine co-phasing stage. © 2017 Optical Society of America.
关键词Pistons - Synthetic apertures
收录类别SCI ; Ei
语种英语
文献类型期刊论文
条目标识符http://ir.ioe.ac.cn/handle/181551/8777
专题自适应光学技术研究室(八室)
作者单位1.Key Laboratory on Adaptive Optics, Chinese Academy of Sciences, Chengdu; 610209, China;
2.Laboratory on Adaptive Optics, Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu; 610209, China;
3.University of Chinese Academy of Sciences, Beijing; 100049, China
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GB/T 7714
Li, Yang,Wang, Shengqian,Rao, Changhui. Dispersed-fringe-accumulation-based left-subtract-right method for fine co-phasing of a dispersed fringe sensor[J]. Applied Optics,2017,56(15):4267-4273.
APA Li, Yang,Wang, Shengqian,&Rao, Changhui.(2017).Dispersed-fringe-accumulation-based left-subtract-right method for fine co-phasing of a dispersed fringe sensor.Applied Optics,56(15),4267-4273.
MLA Li, Yang,et al."Dispersed-fringe-accumulation-based left-subtract-right method for fine co-phasing of a dispersed fringe sensor".Applied Optics 56.15(2017):4267-4273.
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