基于元数据文件的ZY-3轨道和姿态参数的精确获取

大气与环境光学学报 ›› 2013, Vol. 8 ›› Issue (3): 187-194.

基于元数据文件的ZY-3轨道和姿态参数的精确获取

李秀举, 张黎明, 徐伟伟, 司孝龙, 李鑫, 黄文薪

（1. 中国科学院通用光学定标与表征技术重点实验室，安徽合肥 230031;
2. 中国科学院安徽光学精密机械研究所，安徽合肥 230031）

收稿日期:2013-01-24 修回日期:2013-02-25 出版日期:2013-05-28 发布日期:2013-05-17
通讯作者: 李秀举（1987-），男，安徽淮北人，研究生，主要从事卫星遥感器定标技术研究。 E-mail:lxj19871216@126.com
作者简介:李秀举（1987-），男，安徽淮北人，研究生，主要从事卫星遥感器定标技术研究。
基金资助:
国家863计划(2012AA12A302)资助

Precise Acquisition of ZY-3 Orbit and Attitude Parameters Based on Metadata File

LI Xiu-ju, ZHANG Li-ming, XU Wei-wei, SI Xiao-long, LI Xin, HUANG Wen-xin

(1. Key Laboratory of Optical Calibration and Characterization, Chinese Academy of Sciences, Hefei, 230031, China;
2. Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei, 230031, China)

Received:2013-01-24 Revised:2013-02-25 Published:2013-05-28 Online:2013-05-17

摘要/Abstract

摘要：

高精度卫星轨道和姿态参数的获取对卫星数据产品的推广应用具有重要意义。对“资源三号”卫星元数据文件（.AUX）的数据格式、参数意义以及量纲进行了深入的研究和分析，拟合得到任意时刻卫星的轨道和姿态参数。对拟合精度的分析表明，“资源三号”卫星轨道运行平稳，利用二次多项式拟合卫星轨道，精度可达到米级，与星上GPS设计的5米测量精度保持了很好的一致性。成像期间，其姿态变化相当稳定。该值可以作为外方位元素的初始值应用于卫星的在轨几何检校与影像的精确定位。

关键词: 轨道参数, 姿态参数, 数值拟合, 外方位元素, “资源三号”卫星

Abstract:

The acquisition of high precision satellite orbit and attitude parameters is of great significance for the popularization and application of satellite data product. The data format, the meaning of the parameters and dimension of ZY-3 satellite metadata file (. AUX) are analyzed, and the satellite orbit and attitude parameters are fitted for any time. The analysis of the fitting accuracy shows that the ZY-3 satellite orbit is operating smoothly, by the, and the accuracy of satellite orbit fitting based on quadratic polynomial can reach meter level, and it keeps a good consistency with 5 m measurement accuracy designed by GPS on the satellite. In the imaging period, its attitude change is quite stable. This value can be used as the initial value of exterior orientation elements applied to the satellite on-orbit geometric calibration and the accurate positioning of image.

Key words: orbit parameter, attitude parameter, numerical fitting, exterior orientation elements, ZY-3 satellite

中图分类号:

P228. 4

李秀举张黎明徐伟伟司孝龙李鑫黄文薪. 基于元数据文件的ZY-3轨道和姿态参数的精确获取[J]. 大气与环境光学学报, 2013, 8(3): 187-194.

LI Xiu-Ju, Zhang-Li-Ming, Xu-Wei-Wei, Si-Xiao-Long, Li-Xin, Huang-Wen-Xin. Precise Acquisition of ZY-3 Orbit and Attitude Parameters Based on Metadata File[J]. Journal of Atmospheric and Environmental Optics, 2013, 8(3): 187-194.

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