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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
Source PublicationApplied Optics
Volume56Issue:15Pages:4267-4273
2017
Language英语
ISSN1559-128X
Indexed BySCI ; Ei
AbstractIn 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.
KeywordPistons - Synthetic apertures
Document Type期刊论文
Identifierhttp://ir.ioe.ac.cn/handle/181551/8777
Collection自适应光学技术研究室(八室)
Affiliation1.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
Recommended Citation
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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