A new guide star selection algorithm for star tracker

Author

Zhang, Chen ; Chen, Chaoyang ; Shen, Xubang

Author_Institution

Inst. for Image Recognition & Artificial Intelligence, Huazhong Univ. of Sci. & Technol., Wuhan, China

Volume

6

fYear

2004

Firstpage

5445

Abstract

The purpose of this paper is to generate a near uniform guide star catalog (GSC), which has minimum number of guide stars and covers the whole celestial sphere. Minimum Boltzmann entropy (MBE) has been used as criteria to select or reject a star from candidate stars inside field of view (FOV). As an example, a GSC with 14° × 14° squared FOV and visual magnitude threshold (VMT) 6.0 was demonstrated. In order to value the uniformity of GSC, we compared the GSC to initial candidate star catalog (ICSC) and the random simulation star catalog (RSSC). It shows the GSC generated by MBE from ICSC has a better uniformity property for both local and global.

Keywords

attitude control; pattern recognition; space vehicles; stars; tracking; celestial sphere; guide star catalog; guide star selection algorithm; initial candidate star catalog; minimum Boltzmann entropy; random simulation star catalog; star tracker; visual magnitude threshold; Algorithm design and analysis; Artificial intelligence; Chaos; Entropy; Filtering; Image recognition; Optical computing; Optical design; Position measurement; Space vehicles;

fLanguage

English

Publisher

ieee

Conference_Titel

Intelligent Control and Automation, 2004. WCICA 2004. Fifth World Congress on

Print_ISBN

0-7803-8273-0

Type

conf

DOI

10.1109/WCICA.2004.1343772

Filename

1343772