中国空间科学技术

›› 2011, Vol. 31 ›› Issue (4): 70-76.doi: 10.3780/j.issn.1000-758X.2011.04.010

• 技术交流 • 上一篇    下一篇

测量时刻偏差对单星定轨误差的影响分析

刘文祥, 牟卫华, 王飞雪   

  1. （国防科学技术大学数学与工程学院卫星导航研发中心， 长沙 410073)
  • 收稿日期:2010-11-29 修回日期:2010-12-27 出版日期:2011-08-25 发布日期:2011-08-25
  • 作者简介:刘文祥 1981年生，2008年获国防科学技术大学信息与通信工程专业硕士学位，现为该院博士研究生。研究方向为星基导航与定位技术。

Effect Analysis of Measuring Time Error on Single Satellite Orbit Determination Error

LIU  Wen-Xiang, MOU  Wei-Hua, WANG  Fei-Xue   

  1. (Satellite Navigation Research and Development Center, National University of Defense Technology, Changsha 410073)
  • Received:2010-11-29 Revised:2010-12-27 Published:2011-08-25 Online:2011-08-25

PDF (PC)

1633

被引次数

10

摘要： 为评估测量时刻偏差对单星定轨等效测量误差的影响，根据单星定轨处理策略分析了其理论模型，指出测站接收机的测量时刻偏差由测站时钟钟差以及测量时刻不准确度等组成。试验数据分析表明，测站钟差经一阶多项式拟合后的残差可近似为零均值的测量噪声；数值仿真结果表明，卫星信号发射时刻1ms误差导致GEO、IGSO、MEO三种卫星的等效测距误差分别为006cm、40cm、80cm。

关键词: 测量时刻偏差, 等效测距误差, 伪距, 轨道测定, 导航, 卫星

Abstract: To evaluate the  effect of measuring time bias on single satellite orbit determination （SSOD）error, the theoretical model based on the SSOD strategy was analyzed. The measuring time bias of monitor station receiver was composed by clock error and measuring time uncertainty. The experiment data analysis results show that the clock residual error of monitor station after fitting by 1st order polynomial is approximately taken as noise with zero mean. The simulation results show that the equivalent ranging error for GEO, IGSO, MEO satellites, caused by 1ms error of the signal sending time, is 0.06cm, 40cm, 80cm respectively. 

Key words: Measuring time error, Equivalent range error, Pseudorange, Orbit determination Navigation, Satellite