空间控制技术与应用2017，Vol.43Issue(4)：31-36,41,7.DOI:10.3969/j.issn.1674-1579.2017.04.005
一种多帧相关滤波的星敏感器像素非均匀性误差校正方法
A Correction Method of Non-Uniformity Pixel Error Applied to Star Sensor Based on Multi-Frame Correlation Filtering
郑循江 1叶志龙 2杨勤利 1孙朔冬2
作者信息
- 1. 上海航天控制技术研究所,上海201109
- 2. 上海市空间智能控制技术重点实验室,上海201109
- 折叠
摘要
Abstract
In order to further improve star positioning precision of star sensor,the pixel error source and formation mechanism are analyzed.Based on multi-frame correlation filtering,a correction method of non-uniformity pixel error applied to star sensor is proposed.Star centroiding field and local correction field are determined according to the position of star.The information of current-frame star map and formerframe local correction filed are utilized to predict the current-frame local correction field.Corrected star centroiding filed can be obtained by difference method.Experimental results show that non-uniformity noise can be predicted and positioning accuracy is improved better by proposed method,which is also with good robustness.关键词
星敏感器/非均匀性误差/多帧相关滤波/星点定位Key words
star sensor/non-uniformity error/multi-frame filtering/star positioning分类
航空航天引用本文复制引用
郑循江,叶志龙,杨勤利,孙朔冬..一种多帧相关滤波的星敏感器像素非均匀性误差校正方法[J].空间控制技术与应用,2017,43(4):31-36,41,7.
