基于星图识别的空间目标快速天文定位

张磊; 何昕; 魏仲慧; 郭敬明

doi:10.3788/OPE.20142211.3074

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基于星图识别的空间目标快速天文定位

信息科学 | 更新时间：2020-08-13

- 基于星图识别的空间目标快速天文定位
- Fast celestial positioning for space objects based on star identification
- 光学精密工程 2014年22卷第11期页码：3074-3080
- 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,中国,130033
- 作者简介：
- 基金信息：
  
  中国科学院知识创新工程领域前沿项目()
- DOI：10.3788/OPE.20142211.3074
  中图分类号： V556;TP391
- 收稿日期：2013-11-13，
  
  修回日期：2014-01-13，
  
  纸质出版日期：2014-11-25
- 稿件说明：
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张磊, 何昕, 魏仲慧等. 基于星图识别的空间目标快速天文定位[J]. 光学精密工程, 2014,22(11): 3074-3080

ZHANG Lei, HE Xin, WEI Zhong-hui etc. Fast celestial positioning for space objects based on star identification[J]. Editorial Office of Optics and Precision Engineering, 2014,22(11): 3074-3080
张磊, 何昕, 魏仲慧等. 基于星图识别的空间目标快速天文定位[J]. 光学精密工程, 2014,22(11): 3074-3080 DOI： 10.3788/OPE.20142211.3074.

ZHANG Lei, HE Xin, WEI Zhong-hui etc. Fast celestial positioning for space objects based on star identification[J]. Editorial Office of Optics and Precision Engineering, 2014,22(11): 3074-3080 DOI： 10.3788/OPE.20142211.3074.

摘要

本文提出了一种基于星图识别的快速定位算法用于加快空间目标的定位速度和提高定位精度。首先

采集当前图像的拍摄时刻和编码器角度值

运用天文定位三角形建立的地平坐标系与地惯坐标系的转换关系

计算设备视轴在地惯坐标系中的指向;然后

由视轴指向所在的天区

提取出该天区所有的导航星与特征库;结合有初始指向的局部星图识别建立图像中背景恒星星像与导航星的对应关系。最后

根据小孔成像原理

通过已识别的背景参考恒星以角距离匹配的方式对空间目标进行相对定位。对44视场、分辨率为1 0241 024的实际图像的试验结果表明

因定位过程中引入了天文定位三角形模型和星图识别

大大加快了空间目标的定位速度

初始定位速度平均约为400 ms;又因采用相对定位的方式排除了影响定位精度的因素

空间目标的定位精度优于2"。

Abstract

A fast celestial positioning method based on star identification was proposed to improve positioning accuracy and reduce positioning time. Firstly

the photographic time and angular values were acquired

and the pointing direction of boresight in geocentric inertial coordinate system was calculated by transforming a horizontal coordinate system into a geocentric inertial coordinate system with an astronomical triangle model. Then

all navigation stars and patterns in the area that the boresight pointed were extracted

and the corresponding relationship between stars in images and in the sky was established by a region star match. Finally

the celestial positioning for a space object was completed relatively by reference stars in a background according to pinhole imaging model. The experiment for an image with a FOV of 44and a resolution of 1 0241 024 shows that the course of the positioning for the space object has been greatly accelerated due to the introduction of astronomical triangle model and region star match

and the positioning speed is approximately 400 ms. On the other hand

the positing accuracy of a space target is better than 2" because the relative positioning method eliminates a lot of factors effecting the accuracy.

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Keywords

references

李颖,张占月,方秀花. 空间目标监视系统发展现状及展望[J]. 国际太空,2004,6:28-32. LI Y, ZHANG ZH Y, FANG X H. The development and prospect of space object surveillance system[J]. Space International, 2004,6:28-32.(in Chinese)

赵铭. 天体测量学导论[M]. 北京: 中国科学技术出版社, 2006, 246-260. ZHAO M. Introduction to Astrometry[M].Beijing: China Science and Technology Press,2006, 246-260. (in Chinese)

杨少华,郭明安,李斌康,等. 百万像素电子倍增CCD数字化相机的设计[J]. 光学精密工程,2011,19(12):2970-2976. YANG SH H, GUO M A, LI B K,et al.. Design of digital EMCCD with mega pixels[J]. Opt. Precision Eng., 2011,19(12):2970-2976.(in Chinese)

何家维,何昕,魏仲慧,等. 电子倍增CCD星相机的设计[J]. 光学精密工程,2010,18(6):1396-1403. HE J W, HE X, WEI ZH H,et al.. Design of EMCCD cameras for star detection[J]. Opt. Precision Eng., 2010,18(6):1396-1403.(in Chinese)

郑万波. 基于星敏感器的全天自主分层星识别算法研究[D]. 中国科学院研究生院(长春光学精密机械与物理研究所),2004. ZHENG W B. Fully Autonomous Layered Star Identification Algorithm Research Based-on Star Sensor[D].Graduate University of the Chinese Academy of Sciences(Changchun Institute of Optics,fine Mechanics and Physics),2004.(in Chinese)

张磊,何昕,魏仲慧,等. 快速全天自主星图识别[J]. 光学精密工程,2009,17(4):909-915. ZHANG L, HE X, WEI ZH H,et al.. Fast all-sky autonomous star identification[J]. Opt. Precision Eng., 2009,17(4): 909-915.(in Chinese)

张少迪,王延杰,孙宏海. 三角剖分以及径向基函数神经网络在星图识别中的应用[J]. 光学精密工程,2012,20(2):395-402. ZHANG SH D, WANG Y J, SUN H H. Application of triangulation and RBF neural network to star pattern recognition[J]. Opt. Precision Eng., 2012,20(2):395-402.(in Chinese)

巴甫洛夫. 球面三角学[M]. 刘亚星,译.北京:商务印书馆,1953,10. PAVLOV. Spherical Trigonometry[M]. LIU Y X,translation. BeiJing: The Commercial Press, 1953,10.(in Chinese)

赵学颜,李迎春. 靶场光学测量[M]. 北京:装备指挥学院,2001. ZHAO X Y, LI Y CH. Optical Measurement in Shooting Range[M]. BeiJing: The Academy of Equipment Command & Technology, 2001.(in Chinese)

张磊,何昕,魏仲慧,等. 三角形星图识别算法的改进[J]. 光学精密工程,2010,18(2):458-463. ZHANG L, HE X, WEI ZH H,et al.. Modification of triangle identification algorithm[J]. Opt. Precision Eng., 2010,18(2):458-463.(in Chinese)

KOSIK J C. Star pattern identification aboard an inertially stabilized spacecraft[J]. Journal of Guidance, Control and Dynamics,1991,14(2):230-235.

费业泰. 误差理论与数据处理[M]. 北京:机械工业出版社,2004,7. FEI Y T. Error Theory and Data Processing[M]. BeiJing:China Machine Press, 2004,7.(in Chinese)

程云鹏. 矩阵论[M]. 西安:西北工业大学出版社,2000. CHENG Y P. Matrix Theory[M]. Xi'an: Northwestern Polytechnical University press, 2000. (in Chinese).

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