一种新的全天自主几何结构星图识别算法  

A novel all-sky autonomous triangle-based star map recognition algorithm

作　　者：郑胜[1,2] 吴伟仁[1,2] 田金文[1,2] 柳健[1,2] 田岩[1,2] 

机构地区：[1]华中科技大学图像识别与人工智能研究所,湖北武汉430074 [2]图像信息处理与智能控制教育部重点实验室,湖北武汉430074

出　　处：《光电工程》2004年第3期4-7,共4页Opto-Electronic Engineering

基　　金：教育部博士点基金项目(20010487030)

摘　　要：提出了一种新的星图识别算法,该算法根据星敏感器的观测精度,在识别前去除星三角形的观测误差,对无误差的星三角形进行编码,构造特征量。导航三角形的识别只需基于单一特征量的匹配就可完成。多三角形的组合,有效地提高了正确识别率。仿真实验表明,该算法与传统的三角形算法相比,具有更好的实时性和鲁棒性。A novel star map recognition algorithm is proposed. According to the observation accuracy of star sensor, the algorithm eliminates observation error of star triangle before recognition and codes the error-free star triangle to form characteristics quantity. The recognition for navigation triangle can only be carried out on the matching of single characteristics quantity. The combination of multi-triangle effectively improves correct recognition ratio. Simulation experiments show that compared with the traditional triangle algorithm, the proposed algorithm has better timeliness and robustness.

关 键 词：星敏感器 星图识别 算法 导航星库 

分 类 号：V448.22[航空宇航科学与技术—飞行器设计] TP391.41[自动化与计算机技术—计算机应用技术]