中国空间科学技术

中国空间科学技术

• • 上一篇    下一篇

天地基联合多星定轨及精度分析

吴功友;王家松;赵长印;陈建荣;   

  1. 中国科学院紫金山天文台,西安卫星测控中心,中国科学院紫金山天文台,西安卫星测控中心 南京210008,西安710043,南京210008,西安710043
  • 发布日期:2007-06-25

Multiple Satellites Joint Orbit Determination based on Satellite-to-satellite and Satellite-to-earth Tracking

Wu Gongyou1 Wang Jiasong2 Zhao Changyin1 Chen Jianrong2(1 Purple Mountain Observatosy,Chinese Academy of Sciences,Nanjing 210008)(2 Xi′an Satellite Control Center,Xi′an 710043)   

  • Online:2007-06-25

被引次数

7

摘要： 数据中继卫星和双星定位系统通常由2或3颗地球同步卫星和数颗近地卫星组成,这些系统所提供的“星-星”测量数据提出了多星同时定轨的需求。文章介绍了已知天基星星历定轨和未知天基星星历定轨的主要差别,建立了距离和观测量的测量模型,描述了多星同时定轨的技术难点,分析了整个系统的定轨精度。

关键词: 天基测控, 地基测控, 多星定轨, 精度分析, 仿真

Abstract: TDRSS and Double Satellite Positioning System(DSPS) usually consist of two or three GEO satellites and several LEO satellites.The satellite-to-satellite tracking data provided by these systems put forward the requiremens for multi-satellite joint orbit determination(OD).The difference between OD with known GEO ephemeredes and OD with unknown GEO ephemeredes was introduced.The measure model for the sum of range was established and the technica difficulties on multi-satellite joint OD were described.Finally,the OD accuracy was analyzed for the whole system.