Method for star identification using connection cluster

CHEN Yuan-zhi; HAO Sheng-guo; HAO Zhi-hang

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Method for star identification using connection cluster

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- Method for star identification using connection cluster
- Optics and Precision Engineering Vol. 8, Issue 3, Pages: 217-220(2000)
- 作者机构：
  
  中国科学院长春光学精密机械与物理研究所, 吉林长春 130021
- 作者简介：
- 基金信息：
- DOI：
  CLC： V556.5
- Received：09 December 1999，
  
  Revised：20 December 1999，
  
  Published Online：15 June 2000，
  
  Published：15 June 2000
- 稿件说明：
移动端阅览
陈元枝, 郝胜国, 郝志航. 连通聚类星识别方法[J]. 光学精密工程, 2000,(3): 217-220

CHEN Yuan-zhi, HAO Sheng-guo, HAO Zhi-hang. Method for star identification using connection cluster[J]. Editorial Office of Optics and Precision Engineering, 2000,(3): 217-220
陈元枝, 郝胜国, 郝志航. 连通聚类星识别方法[J]. 光学精密工程, 2000,(3): 217-220 DOI：

CHEN Yuan-zhi, HAO Sheng-guo, HAO Zhi-hang. Method for star identification using connection cluster[J]. Editorial Office of Optics and Precision Engineering, 2000,(3): 217-220 DOI：

摘要

采用星敏感器测卫星姿态是现行方法中精度最高的

其关键是星图识别.本文阐述了只采用观测星的位置信息

利用观测星图与导航星表的星对角距进行聚类匹配

根据观测星图的连通性进行匹配识别的方法

用图论理论解释了星识别过程;用120M主频的微机模拟分析了门限和位置噪声对识别时间的影响.在门限取0.05°

位置噪声(单轴)δ=0.02°以下时

在任一区域识别率达100%

识别时间平均少于0.2s.

Abstract

The most accurate instrument for satellite attitude determination is star tracker now

in which the key problem is the identification of star map. In this paper

cluster match is performed only with the observed star position information and using the star angular distance between observed star map and guide star catalog

then match identification is made with respect to the connection of the observed star map

at last

utilizing the computer(main frequency 120M)simulation the effects of threshold and position noise on identification and identification time are analyzed. When the threshold is 0.05°

position noise δ is less than 0.02°

in any areas

the identification efficiency is 100%

and the average identification time is less than 0.2s.

关键词

Keywords

references

Scholl Marija S. Star field identification algorithm-performance verification using simulated star fields[C]. Proc. SPIE, 1993, 2019: 275－290.

DeAntonio L, Udomkesmalee S et al. Star-tracker based autonomous attitude determinction[C]. Proc. SPIE, 1993, 1949: 204－216.

Roelof W H, van Bezooijen. True-sky demonstration of an autonomous star tracker[C]. Proc. SPIE, 1994, 2221: 156－168.

卢开澄,卢华明著.图论及其应用[M].北京：清华大学出版社,1995.

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