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Title:
The Improvement of CCD Auto-guiding System for 2.5m Telescope
Author: Chen, LiYan(陈丽燕) ; Zhang, ZhenChao(张振超) ; Wang, Hai(王海)
Issued Date: 2012-09-24
Conference Date: 2012-7-1
Conference Place: Amsterdam, Netherlands
Keyword: Guide Star ; Guider software ; Auto-Guiding ; De-rotator ; Digital image processing
Subject: 天文技术与方法
English Abstract:
The CCD Auto-Guiding Star System is a significant part in the telescope control system for minimizing the tracking errors, and acquiring high-resolution data. In this paper, the improved algorithms of the off-axis CCD Auto-Guiding Star System is designed and applied. Especially the de-rotator algorithm is added for the large-field Alt-Az Telescope to keep stars at original positions. The software that can communicate with the CCD camera is designed to collect, analyze and process data, and then sent data to Alt-Az control system in real time less than 160ms. The algorithms to calculate centriod of stars are novel. The experimental results were high-resolution and reliable for system, the RMS of star offset vector can arrive 0.03 pixel. In addition, experiments showed that the software could work steadily in long time. Now the CCD Auto-guiding software has been applied on the f/8 reflecting Alt-Az telescope with 2.5m aperture, 1-degree field of view.
Sponsorship: The International Society for Optical Engineering
Source: Software and Cyberinfrastructure for Astronomy II
Publisher: SPIE
Content Type: 会议论文
URI: http://ir.niaot.ac.cn/handle/114a32/681
Appears in Collections:中科院南京天光所知识成果_会议论文
望远镜新技术研究室_会议论文

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Recommended Citation:
Liyan Chen,Zhenchao zhang,Hai Wang. The Improvement of CCD Auto-guiding System for 2.5m Telescope[C]. 见:. Amsterdam, Netherlands. 2012-7-1.
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文件名: The Improvement of CCD Auto-guiding System for 2.5m Telescope.PDF
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