Observation planning of LAMOST fiber positioning subsystem and its simulation study

Chao Zhai; Xiaobo Peng; Xiaozheng Xing

doi:10.1117/12.457962

4 February 2003 Observation planning of LAMOST fiber positioning subsystem and its simulation study

Chao Zhai, Xiaobo Peng, Xiaozheng Xing

Author Affiliations +

Proceedings Volume 4837, Large Ground-based Telescopes; (2003) https://doi.org/10.1117/12.457962
Event: Astronomical Telescopes and Instrumentation, 2002, Waikoloa, Hawai'i, United States

Abstract

The observation region of fiber positioning unit of LAMSOT is designed as a round area and overlapped each other in order to eliminate the un-observation region and increase the efficiency of the observation. But in such structure, the fiber holders have probability to touch each other during moving to the target images. This paper introduces a method of an observation planning for LAMOST sub-system including 19 fiber positioning units which can diminish the probability of mechanical interference by proper assignment ways and the preparatory processing in which the interference would be detected and eliminated through the retreat algorithm, and the strategy of allocating images and the moving routes of all units are obtained. The computer simulation indicates that this method successfully avoids the mechanical collisions during observations of Sub-system, at the same time, the efficiency of the observation is hardly decreased. This method is definitely valuable to the parallel controllable optical fiber position system of LAMOST which has 4000 fiber positioning units.

Citation Download Citation

Chao Zhai, Xiaobo Peng, and Xiaozheng Xing "Observation planning of LAMOST fiber positioning subsystem and its simulation study", Proc. SPIE 4837, Large Ground-based Telescopes, (4 February 2003); https://doi.org/10.1117/12.457962

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