Title :
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
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;
Conference_Titel :
Intelligent Control and Automation, 2004. WCICA 2004. Fifth World Congress on
Print_ISBN :
0-7803-8273-0
DOI :
10.1109/WCICA.2004.1343772
