Method of uniformity and rapidity for selecting guide stars

Lu Jinghui; Wang Hongli; Yuan Yu; Cui Xiangxiang; Xu Zhe

To solve the problem of the distribution uniformity and construction rapidity of guide star catalog, a method for guide star selection was proposed, which was based on Polar Coordinates Subdivision Method (PCSM) and separation-magnitudeweighting method. In order to ensure the distribution uniformity of guide star, the guide star was selected near the reference points on spherical surface neighbourhood, and to insure the results does not overstepp coordinate boundary; by using k-vector method to search candidate stars which was in reference points neighbourhood, the speed of the algorithm could be improved obviously; at last, considering the guide star performance of distribution uniformity and brightness, guide star was selected by separation-magnitudeweighting method. Simulation results show that the algorithm is simple in realization, and it has strong universality,and the selected guide stars have good uniform distribution.

1. Department of Automatic Control,The Second Artillery Engineering University,Xi'an 710025,China;

2. The Second Artillery MAD Stationed the 10th Academy of china Aerospace,Beijing 100854 China

Received Date: 2014-05-10

Rev Recd Date: 2014-06-17

Publish Date: 2015-01-25

Key words:

Abstract: To solve the problem of the distribution uniformity and construction rapidity of guide star catalog, a method for guide star selection was proposed, which was based on Polar Coordinates Subdivision Method (PCSM) and separation-magnitudeweighting method. In order to ensure the distribution uniformity of guide star, the guide star was selected near the reference points on spherical surface neighbourhood, and to insure the results does not overstepp coordinate boundary; by using k-vector method to search candidate stars which was in reference points neighbourhood, the speed of the algorithm could be improved obviously; at last, considering the guide star performance of distribution uniformity and brightness, guide star was selected by separation-magnitudeweighting method. Simulation results show that the algorithm is simple in realization, and it has strong universality,and the selected guide stars have good uniform distribution.

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Reference (22)

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Method of uniformity and rapidity for selecting guide stars

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