计算机工程与应用 ›› 2010, Vol. 46 ›› Issue (21): 220-222.DOI: 10.3778/j.issn.1002-8331.2010.21.063

• 工程与应用 • 上一篇    下一篇

高精度星敏感器的导航星识别定位算法研究

李学夔1,谭海曙1,张焕明1,于昕梅1,郝志航2   

  1. 1.佛山科学技术学院 机电学院,广东 佛山 528000
    2.中国科学院 长春光学精密机械与物理研究所,长春 130022
  • 收稿日期:2009-01-15 修回日期:2009-04-21 出版日期:2010-07-21 发布日期:2010-07-21
  • 通讯作者: 李学夔

Guide star identification method for star sensor

LI Xue-kui1,TAN Hai-shu1,ZHANG Huan-ming1,YU Xin-mei1,HAO Zhi-hang2   

  1. 1.The Mechatronics and Information Engineering School,Foshan University,Foshan,Guangdong 528000,China
    2.Changchun Institute of Optics,Fine Mechanics and Physics,Chinese Academy of Sciences,Changchun 130022,China
  • Received:2009-01-15 Revised:2009-04-21 Online:2010-07-21 Published:2010-07-21
  • Contact: LI Xue-kui

摘要: 介绍了星敏感器的基本工作原理,分析了恒星能量在星图的分布特点,结合星图的特点提出了星敏感器导航星点识别定位方法,按照处理顺序,介绍了导航星阈值确定,连通性分析和内插细分等其中各步骤算法,并用星敏感器通过导航星角距标定新方法对该方法进行了定位精度检测,取得了较为满意的结果。

Abstract: The basic principle of star sensor is introduced.The characteristic of the star image is analyzed.The methods of the guide star identification for the star sensor are researched with the characteristic of star image.The method of threshold,connectivity analysis and centroid for the star locating is analyzed on the ways of theory and practice.The precision of the algorithm is detected by the guide star’s principal distance.The experiment proves that the star sensor would get more precision through the new method of calibration.

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