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Defocus spot detection of astronomical optical system

文献类型：期刊论文

作者Hu Tian-Zhu1,2,3; Zhang Yong1,3; Cui Xiang-Qun1,3; Li Ye-Ping1,3; Bai Hua1,3; Pan Xiu-Shan1,2,3
刊名RESEARCH IN ASTRONOMY AND ASTROPHYSICS
出版日期2020-03-01
卷号20期号:3页码:8
关键词methods data analysis techniques image processing telescopes
ISSN号1674-4527
DOI10.1088/1674-4527/20/3/41
英文摘要Defocusing spot size detection is especially essential for aberration analysis and correction of optical systems. In the case of far defocusing, the celestial forms a pupil image on the detector, and the size of the image is linearly changed with the defocusing distance, and can be used to correct the optical system and analyze the image quality. Based on the focal plane attitude detection of Large Sky Area Multi- Object Fiber Spectroscopy Telescope (LAMOST), this paper uses a variety of methods to detect the size of the defocusing spot of LAMOST telescope. For the particularity of the spot, the average value spacing algorithm, the peak value spacing algorithm, the ellipse fitting algorithm, and the multi-peak Gaussian fitting algorithm are used to detect the spot size. This paper will introduce these four methods, in which the average value spacing algorithm is proposed by the author of this paper. The advantages and disadvantages of the four methods are compared. The experimental results show that the average value spacing algorithm can achieve better accuracy of spot size detection in the four algorithms.
资助项目National Development and Reform Commission ; National Key Basic Research Program of China[2015CB857100] ; National Natural Science Foundation of China[U1331204] ; National Natural Science Foundation of China[14473050]
WOS研究方向Astronomy & Astrophysics
语种英语
WOS记录号WOS:000526407600001
出版者NATL ASTRONOMICAL OBSERVATORIES, CHIN ACAD SCIENCES
资助机构National Development and Reform Commission ; National Development and Reform Commission ; National Key Basic Research Program of China ; National Key Basic Research Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Development and Reform Commission ; National Development and Reform Commission ; National Key Basic Research Program of China ; National Key Basic Research Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Development and Reform Commission ; National Development and Reform Commission ; National Key Basic Research Program of China ; National Key Basic Research Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Development and Reform Commission ; National Development and Reform Commission ; National Key Basic Research Program of China ; National Key Basic Research Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China
源URL[http://ir.bao.ac.cn/handle/114a11/56181]  
专题中国科学院国家天文台
通讯作者Zhang Yong
作者单位1.Chinese Acad Sci, Key Lab Astron Opt & Technol, Nanjing Inst Astron Opt & Technol, Nanjing 210042, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Natl Astron Observ, Nanjing Inst Astron Opt & Technol, Nanjing 210042, Peoples R China
推荐引用方式
GB/T 7714		 Hu Tian-Zhu,Zhang Yong,Cui Xiang-Qun,et al. Defocus spot detection of astronomical optical system[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2020,20(3):8.
APA Hu Tian-Zhu,Zhang Yong,Cui Xiang-Qun,Li Ye-Ping,Bai Hua,&Pan Xiu-Shan.(2020).Defocus spot detection of astronomical optical system.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,20(3),8.
MLA Hu Tian-Zhu,et al."Defocus spot detection of astronomical optical system".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 20.3(2020):8.

入库方式： OAI收割

来源：国家天文台

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