传感技术学报2024，Vol.37Issue(2)：234-240,7.DOI:10.3969/j.issn.1004-1699.2024.02.008
LIS模式下基于双主星集合匹配的星图识别方法
A Star Identification Method Based on Matching Algorithm with Double Main Star Sets in LIS Mode
摘要
Abstract
For the purpose of improving successful identification rate of non-refracted stars in star image with refracted stars,a high ro-bust star identification method for star sensor with large field of view is proposed.Firstly,basic star table is selected to achieve distribu-tion uniformity of guide star catalogue.A group search approach is developed to improve matching speed between angular distance and star pair attribute database.Moreover,star matching algorithm with double main star sets is proposed to improve the robustness of star recognition,which checks two star sets repeatedly through three phases including matching,verification and confirmation.The simulation results indicate that the proposed algorithm shows higher robustness than traditional triangle-pyramid hybrid algorithm under interference condition including positional noise,magnitude noise and false stars.In star image with six refracted stars,the non-refracted star identifi-cation rate of the proposed method is higher than 95.6％,which is 31％higher than the successful rate of traditional algorithm.关键词
星图识别/星光折射/导航星表/星敏感器Key words
star identification/starlight refraction/guide star catalogue/star sensor分类
航空航天引用本文复制引用
耿旖堃,陈熙源..LIS模式下基于双主星集合匹配的星图识别方法[J].传感技术学报,2024,37(2):234-240,7.基金项目
江苏省重点研发计划项目(BE2022139) （BE2022139）
江苏现代农业产业关键技术创新项目(CX(21)2015) （CX(21）
无锡市科技发展资金项目(N20221003) （N20221003）
