IOE OpenIR  > 自适应光学技术研究室(八室)
Error analysis of the piston estimation method in dispersed fringe sensor
Li, Yang1,2,3; Wang, Sheng-Qian1,2; Rao, Chang-Hui1,2
Source PublicationChinese Physics B
Volume26Issue:3Pages:039501
2017
Language英语
ISSN1674-1056
AbstractDispersed fringe sensor (DFS) is an important phasing sensor of next-generation optical astronomical telescopes. The measurement errors induced by the measurement noise of three piston estimation methods for the DFS including leastsquared fitting (LSF) method, frequency peak location (FPL) method and main peak position (MPP) method, are analyzed theoretically and validated experimentally in this paper. The experimental results coincide well with the theoretical analyses.The MPP, FPL, LSF are used respectively when the DFS operates with broadband light (central wavelength: 706 nm, bandwidth: 23 nm). The corresponding root mean square (RMS) value of estimated piston error can be achieved to be 1 nm, 3 nm, 26 nm, respectively. Additionally, the range of DFS with the FPL can be more than 100 μm at the same time. The FPL method can work well both in coarse and fine phasing stages with acceptable accuracy, compared with LSF method and MPP method. © 2017 Chinese Physical Society and IOP Publishing Ltd.
KeywordAdaptive optics - Errors - Interferometers - Phase measurement - Pistons - Telescopes
Indexed BySCI ; Ei
Document Type期刊论文
Identifierhttp://ir.ioe.ac.cn/handle/181551/8796
Collection自适应光学技术研究室(八室)
Affiliation1.Laboratory on Adaptive Optics, Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu; 610209, China;
2.Key Laboratory on Adaptive Optics, 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, Sheng-Qian,Rao, Chang-Hui. Error analysis of the piston estimation method in dispersed fringe sensor[J]. Chinese Physics B,2017,26(3):039501.
APA Li, Yang,Wang, Sheng-Qian,&Rao, Chang-Hui.(2017).Error analysis of the piston estimation method in dispersed fringe sensor.Chinese Physics B,26(3),039501.
MLA Li, Yang,et al."Error analysis of the piston estimation method in dispersed fringe sensor".Chinese Physics B 26.3(2017):039501.
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