基于帧间角距匹配的跟踪模式星图识别

摘要

In order to improve the match rate and attitude update rate of star sensor,a star tracking algorithm for star sensor using star angular distance matching between adjacent frames was proposed.In this method,the angular distance information at last frames are fully utilized to construct a real-time database,and at current time the angular distance information are matched at the real-time database,update the real-time database after successful matched.Simulation showed that the application of this method made this tracking algorithm faster and improved the efficiency of star sensors.%为了提高星敏感器的跟踪匹配速率,提高星敏感器姿态更新率,本文提出了一种基于帧间角距匹配的跟踪模式星图识别方法.该方法充分利用上一时刻的角距匹配信息构建了一个实时跟踪星库,并把当前时刻的角距信息在实时跟踪星库中进行匹配识别,识别成功后利用识别时用到的信息对实时跟踪星库进行更新.仿真实验表明,该方法具有匹配时间短、匹配成功率高的优点.