A Fast Satellite Selection Approach for Satellite Navigation System

CHEN Can-hui; ZHANG Xiao-lin

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A Fast Satellite Selection Approach for Satellite Navigation System

更新时间：2025-07-16

- A Fast Satellite Selection Approach for Satellite Navigation System
- Acta Electronica Sinica Vol. 38, Issue 12, Pages: 2887-2891(2010)
- 作者机构：
  
  北京航空航天大学电子信息工程学院,北京,100191
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN967.1
- Published：2010
- 稿件说明：
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CHEN Can-hui, ZHANG Xiao-lin. A Fast Satellite Selection Approach for Satellite Navigation System[J]. Acta Electronica Sinica, 2010, 38(12): 2887-2891.
DOI：

CHEN Can-hui, ZHANG Xiao-lin. A Fast Satellite Selection Approach for Satellite Navigation System[J]. Acta Electronica Sinica, 2010, 38(12): 2887-2891. DOI：

摘要

从几何精度因子(GDOP)与星座几何布局的关系出发

提出了用于多星座卫星导航系统的快速选星方法——几何布局选星法.该方法以满足定位要求为前提

按卫星在星座中均布为原则来进行选星.仿真结果表明

相对传统GDOP选星法

计算量减少99%以上

而GDOP满足要求

同时

选星数较少且简洁快速

有效满足了选星求解的实时性和精度要求.

Abstract

Based on the analysis of relationship between the geometric dilution of precision (GDOP) and the geometry layout of constellation

a new fast satellite selection method

which is called geometry satellite selection approach (GSSA)

is proposed for multi-constellation satellite navigation system.The operation of satellite selection of the proposed method is operated on the premise that the positioning requirement must be met and on the principle of uniform distribution of satellites.Simulation results show that the decrease in computation load of GSSA is more than 99% in contrast with the traditional optimal GDOP method

and the constellation GDOP obtained by GSSA can meet the demand of navigation and positioning.At the same time

the number of selecting satellites also is little

and the satellite selection is simple and rapid.And it is satisfied to the real-time capability and accuracy demand of satellite selection of satellite navigation system.

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