Mathematics – Probability
Scientific paper
Feb 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003spie.4837..556z&link_type=abstract
Large Ground-based Telescopes. Edited by Oschmann, Jacobus M.; Stepp, Larry M. Proceedings of the SPIE, Volume 4837, pp. 556
Mathematics
Probability
Scientific paper
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.
Peng Xiaobo
Xing Xiaozheng
Zhai Chao
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