中国空间科学技术

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近地卫星利用GPS自主定轨的精度

杨维廉   

  1. 北京空间飞行器总体设计部
  • 发布日期:1992-04-25

ACCURACY OF AUTONOMOUS ORBIT DETERMINATION FOR NEAR EARTH SATELLITE BY USING GPS

Yang Weilian (Beijing Institute of Spacecraft Systems Engineering)   

  • Published:1992-04-25

摘要： 讨论近地卫星利用GPS 全球定位系统进行自主定轨的精度问题,建立了定轨精度与等效三维定位精度之间的关系,然后利用这种关系来推算C/A 码用户所能获得的定轨及位置精度。分析结果表明,10m 量级的定轨精度是可以达到的。

关键词: 全球定位系统, 精度分析, 方法

Abstract: This paper discusses the accuracy of autonomous orbit deter- mination for near-earth satellites by using GPS and related issues.At first, a relation between the orbit accuracy and the equivalent 3-dimension posi- tion accuracy is established,the potential orbit accuracy which can be obtained by C/A-code users is calculated then by using this relation.Results show that a ten-meter level orbit accuracy can be achieved for onboard C/A-code users.

Key words: Global position system, Accuracy analysis, Method