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Astronomical extended object image reconstruction after primary correction with Yunnan Observatory 1.2m adaptive optics system
Chang X(常翔)1,2; Li RW(李荣旺)1,2; Xiong YH(熊耀恒)1
会议录名称PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) - ADAPTIVE OPTICS SYSTEMS, PTS 1-3
2008
卷号7015
DOI10.1117/12.787399
会议录编者/会议主办者Hubin, N; Max, CE; Wizinowich, PL
产权排序第1完成单位
收录类别EI ; CPCI
会议名称Conference on Adaptive Optics Systems
会议日期2008-06-23
会议地点Marseille, FRANCE
会议赞助商SPIE; SPIE Europe
关键词Adaptive Optics Point Spread Function Extended Object Image Restoration
摘要

As an astronomical image post-processing technique, deconvolution from wavefront sensing (DWFS) is a powerful and low cost method for adaptive optics (AO) images reduction. It is based on deconvolution of short exposure images and simultaneous measuring wavefront sensor data, both are provided by adaptive optics system to improve the quality of images. However, for extended or dim sources observing, limited precision of the Wave Front Sensor (WFS) will lead to inferior correction quality of AO images, also these can hardly enhanced by DWFS method. We show here a simple and efficient solution, which combines the DWFS method with a shift-and-add (SAA) image reconstruction technique, designed for reduction of astronomical data obtained with AO system, especially extended objects. This scheme has been applied to the upgraded 61-actuator Shack-Hartmann based adaptive optics system, partially primary corrected extended object images at Yunnan observatory 1.2m telescope for astronomical high resolution imaging. Experimental result of Mars was presented.

语种英语
学科领域物理学 ; 光学 ; 应用光学 ; 天文学 ; 天体测量学 ; 天文学其他学科
学科门类理学 ; 理学::天文学 ; 工学::光学工程
文章类型Proceedings Paper
出版者SPIE-INT SOC OPTICAL ENGINEERING
出版地1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
ISBN号978-0-8194-7225-0
ISSN号0277-786X
URL查看原文
归档日期2009-01-05
WOS记录号WOS:000261491700062
WOS研究方向Astronomy & Astrophysics ; Computer Science ; Optics
WOS类目Astronomy & Astrophysics ; Computer Science, Interdisciplinary Applications ; Optics
关键词[WOS]Deconvolution ; Telescopes
EI入藏号20092512137347
EI主题词Adaptive Optics
EI分类号704.2electric Equipment - 741.1light/optics
引用统计
文献类型会议论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/7334
专题应用天文研究组
通讯作者Chang X(常翔)
作者单位1.Yunnan Observatory, National Astronomical Observatories, Chinese Academy of Sciences, Kunming 650011, Yunnan, P.R.China
2.Graduate School of Chinese Academy of Sciences, Beijin 100039, P.R.China
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Chang X,Li RW,Xiong YH. Astronomical extended object image reconstruction after primary correction with Yunnan Observatory 1.2m adaptive optics system[C]//Hubin, N; Max, CE; Wizinowich, PL. 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA:SPIE-INT SOC OPTICAL ENGINEERING,2008.
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