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The improvement of LAMOST fiber view camera metrology system fiber position recognition algorithm
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Paper Abstract

The LAMOST telescope has been officially observed for the past seven years since 2009, and many parts of the telescope are currently being upgraded. The fiber positioning unit of the focal plane instrument is also planned to be upgraded again. In order to ensure a higher positioning accuracy of the fiber positioning unit, the newly developed fiber positioning system adopts a closed-loop camera to photograph the unit fiber position in real time, and feeds back to the control system to implement multiple positioning to improve the positioning accuracy. This article focuses on an improved optical center of gravity algorithm for optical fiber location based on the optical center of gravity algorithm. The factors affecting the position measurement of the optical fiber spot are optimized, and the recognition accuracy of the spot position under different conditions is improved.

Paper Details

Date Published: 9 July 2018
PDF: 12 pages
Proc. SPIE 10702, Ground-based and Airborne Instrumentation for Astronomy VII, 1070277 (9 July 2018); doi: 10.1117/12.2309750
Show Author Affiliations
Kang Zhao, Univ. of Science and Technology of China (China)
Zhigang Liu, Univ. of Science and Technology of China (China)
Hongzhuan Hu, Univ. of Science and Technology of China (China)
Jianping Wang, Univ. of Science and Technology of China (China)
Chao Zhai, Univ. of Science and Technology of China (China)
Zengxiang Zhou, Univ. of Science and Technology of China (China)


Published in SPIE Proceedings Vol. 10702:
Ground-based and Airborne Instrumentation for Astronomy VII
Christopher J. Evans; Luc Simard; Hideki Takami, Editor(s)

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