Method and Implementation of Improving the Pointing Accuracy of an Optical Remote Sensor Using a Star Sensor

doi:10.18280/ts.360403

	Method and Implementation of Improving the Pointing Accuracy of an Optical Remote Sensor Using a Star Sensor
	Q.Liu; X.He; F.W.Guan; Y.C.Zhao; F.Jiang; F.X.Tian; S.X.Wang
	2019
发表期刊	Traitement Du Signal
ISSN	0765-0019
卷号	36 期号:4 页码:311-317
摘要	Based on the analysis of the pointing accuracy of the optical sensor in a star sensor, this paper introduces the geometric accuracy of the star sensor as an external orientation element that affects the optical remote sensing image and analyzes the characteristics of the installation method of the star sensor in different optical remote sensors. The key factors affecting the pointing accuracy of the star sensor are considered, and the geometrical accuracy of the image is improved by analyzing the installation method of the star sensor, the star sensor bracket design, and the star sensor thermal control component. Achievable measures are made, and the pointing stability of the star sensor is verified through a ground test and by measuring the temperature fluctuations of the orbiting sensor. Through ground testing and on-orbit testing, the star sensor bracket has a temperature fluctuation of <+/- 1 degrees C in one photography cycle, and the star sensor's attitude error around the axis is less than 5", so the uncontrolled geometric positioning accuracy of the image product can be obtained as 11.4 m (rms).
关键词	star sensor,spatial optical remote sensor,external orientation,pointing accuracy,Computer Science,Engineering
DOI	10.18280/ts.360403
收录类别	SCI ; EI
语种	英语
引用统计
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/63486
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Q.Liu,X.He,F.W.Guan,et al. Method and Implementation of Improving the Pointing Accuracy of an Optical Remote Sensor Using a Star Sensor[J]. Traitement Du Signal,2019,36(4):311-317.
APA	Q.Liu.,X.He.,F.W.Guan.,Y.C.Zhao.,F.Jiang.,...&S.X.Wang.(2019).Method and Implementation of Improving the Pointing Accuracy of an Optical Remote Sensor Using a Star Sensor.Traitement Du Signal,36(4),311-317.
MLA	Q.Liu,et al."Method and Implementation of Improving the Pointing Accuracy of an Optical Remote Sensor Using a Star Sensor".Traitement Du Signal 36.4(2019):311-317.