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《Opto-Electronic Engineering》 2007-01
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Quick star tracking algorithm for star sensor based on matching

JIANG Jie,ZHANG Guang-jun,LI Xiao,WEI Xin-guo ( School of Instrument Science and Opto-electronics Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083, China )  
The principle of matching on the basis of star centroid was introduced. A star tracking algorithm for star sensor based on matching was presented. The Field Programmable Gate Array (FPGA) technology was adopted to acquire real-time star centroid. The bottleneck of image data acquisition in star tracking was solved, the number of tracking star was increased and the speed of star tracking was improved. Sorting and matching method was applied in the tracking algorithm which reduced meaningless matching between stars. The simulation results show that the matching time is reduced to 10% of the past method, the speed of tracking is improved and the whole efficiency of star sensor is also improved obviously.
【Fund】: 航天创新基金;; 航空基金(03I51004);; 民用航天预研项目资助
【CateGory Index】: V443
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Chinese Journal Full-text Database 10 Hits
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【Secondary References】
Chinese Journal Full-text Database 1 Hits
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