A NOVEL STAR PATTERN RECOGNITION ALGORITHM FOR STAR SENSOR
Triangle algorithm is used widely in the field of star pattern recognition, but it also has disadvantage that recognition reliability decreases seriously in areas where there are many stars existing small angular separation.The character match algorithm can solve this problem and it has small size of guide star database, but it can not recognize a star image with displacement caused by camera movement and rotation.To overcome this disadvantage, an effective star pattern recognition algorithm is proposed in this paper.This algorithm divided the entire celestial sphere into a lot of square areas based on some bright stars during constructing guide star database, and then it used sub-areas selected from these square areas for star pattern recognition according to characteristic of star image sensed by star sensor.The simulation results show that the algorithm in this paper not only inherits advantages of character match algorithm, but also has strong robustness against star image displacement.
Star sensor Star pattern recognition Character match
MING JIANG YI-ZHENG YE MING-YAN YU JIN-XIANG WANG BAO-HUA LI
Department of electronics science and technology, Harbin Institute of Technology, Harbin 150001, China
国际会议
2007 International Conference on Machine Learning and Cybernetics(IEEE第六届机器学习与控制论国际会议)
香港
英文
2673-2677
2007-08-19（万方平台首次上网日期，不代表论文的发表时间）