宇航计测技术 ›› 2015, Vol. 35 ›› Issue (6): 14-18.doi: 10.12060/j.issn.1000-7202.2015.06.04

• 论文 • 上一篇    下一篇

航星座自主运行平行系统的轨道计算方法

刘友红1,2；黄文德2；盛利元1   

  1. 1、中南大学物理与电子学院， 长沙 410083；
    2、国防科技大学机电工程与自动化学院， 长沙 410073
  • 出版日期:2015-12-15 发布日期:2015-12-15
  • 作者简介:刘友红（1990-），女，硕士研究生，主要研究方向：导航卫星轨道计算技术。
  • 基金资助:
    国家自然科学基金资助项目（41274023）

Orbit Calculation Method of Autonomous Navigation Constellation Parallel Systems

LIU You-hong1,2；HUANG Wen-de2；SHENG Li-yuan1   

  1. 1、College of physic and electronic, Central South University, Changsha 410083;
    2、National University of Defense Technology, Changsha 410073
  • Online:2015-12-15 Published:2015-12-15

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摘要： 构建一个能够与实际卫星导航系统长期保持时空一致的平行系统，可为导航星座自主运行提供一个监视与评估平台。针对建设该平行系统所需的高逼真轨道计算问题，引入平行系统理论的思想，在分析历史精密轨道的基础上，提出高精度轨道计算与预报方法。该方法以不断更新的精密轨道作为输入，利用PID增量式算法或时变加权法进行数据平滑，使得轨道计算结果始终与实际系统保持高度一致性。试验结果表明，该方法可使卫星轨道计算的结果与实际卫星轨道长期保持在分米量级。

关键词: 卫星导航, 轨道计算, 平行系统, 时变加权法, PID增量式算法

Abstract: In order to provide a monitoring and evaluation platform for the navigation constellation autonomous operation, a parallel system consisting with real satellite navigation system is need to be constructed. To solve the orbit calculating problem of high-fidelity simulation system, the theory of parallel systems is introduced, and the high-precision orbit calculation and prediction method is proposed based on the analysis of historical precise orbit.To make the results of orbit calculation keep highly consistent with the actual system,the continuous renewal precise orbit is taken as inputs ,also the time-varying weighting method or PID incremental algorithm is applied to data smoothing. The results show that the satellite orbit calculation results keep an order of decimeter with the actual orbit.

Key words: Satellite navigation, Orbit calculation, Parallel system, Time-varying weighting method, PID incremental algorithm

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