测绘学报 ›› 2016, Vol. 45 ›› Issue (9): 1035-1041.doi: 10.11947/j.AGCS.2016.20160045

• 大地测量学与导航 • 上一篇    下一篇

LEO卫星轨道预报精度分析

王亚菲1,2,3, 钟世明1,2, 王海涛1,2, 欧吉坤1,2   

  1. 1. 中国科学院测量与地球物理研究所, 湖北 武汉 430077;
    2. 大地测量与地球动力学国家重点实验室, 湖北 武汉 430077;
    3. 中国科学院大学, 北京 100049
  • 收稿日期:2016-01-28 修回日期:2016-06-17 出版日期:2016-09-20 发布日期:2016-09-29
  • 通讯作者: 钟世明 E-mail:smzhong@whigg.ac.cn
  • 作者简介:王亚菲(1989-),女,硕士,研究方向为GNSS高精度数据处理.E-mail:wangyafei14@mails.ucas.ac.cn
  • 基金资助:
    国家自然科学基金(41474029;41574015);大地测量与地球动力学国家重点实验室自主项目(SKLGED2013-4-2-Z)

Precision Analysis of LEO Satellite Orbit Prediction

WANG Yafei1,2,3, ZHONG Shiming1,2, WANG Haitao1,2, OU Jikun1,2   

  1. 1. Institute of Geodesy and Geophysics, Chinese Academy of Sciences, Wuhan 430077, China;
    2. State Key Laboratory of Geodesy and Earth's Dynamics, Wuhan 430077, China;
    3. University of Chinese Academy of Science, Beijing 100049, China
  • Received:2016-01-28 Revised:2016-06-17 Online:2016-09-20 Published:2016-09-29
  • Supported by:
    The National Natural Science Foundation of China(Nos.41474029;41574015);State Key Laboratory of Geodesy and Earth's Dynamic Project(No.SKLGED2013-4-2-Z)

摘要: 利用动力学拟合法,以HY-2A卫星为例分析不同拟合区间对预报不同弧长的轨道精度的影响。基于CNES提供的事后精密星历和采用非差简化动力学方法获得的厘米级快速轨道两种产品,进行卫星轨道预报。结果表明:采用24h和12h拟合区间分别预报12h轨道时,其3DRMS优于6dm;当预报24h轨道时,3DRMS优于1m。

关键词: 动力学拟合, Collocation积分, 拟合区间, 预报, 快速定轨

Abstract: The accuracy of different fitting intervals on the predicted orbit of different arc lengths was analyzed by using the dynamic fitting method and taken HY-2A satellite as an example. According to two orbit products, one was the precise orbit obtained by CNES and the other was rapid orbit computed by adopting zero-different reduced dynamic method, obtaining the precise predicted orbit. By the results, we can get that the 3DRMS is near 6dm by using 12h or 24h fitting orbit to forecast 12h arc; the 3DRMS is near 1m when forecasting 24h arc.

Key words: dynamic fitting, Collocation algorithm, fitting interval, prediction, rapid orbit determination

中图分类号: