一种BDS/GPS双系统融合导航的快速选星方法

摘要/Abstract

摘要： 针对全球导航卫星系统运算量急剧增加的问题，提出一种BDS/GPS双系统快速选星算法.该算法以最佳星座配置法和底座中心法为基础，针对多系统的特点制定选星策略，并对算法进行实验验证.实验结果表明，该算法在保证定位精度基础上有效减少了定位解算的运算量.

关键词: , 北斗卫星导航系统, 全球定位系统, 选星, 几何精度因子, 最佳星座配置法

Abstract: With the development of Global Navigation Satellite System, the number of visible satellites is gradually increased. Satellite selection is then proposed in order to achieve a balance between computation and positioning accuracy. This paper presents a fast satellite selection algorithm by using BDS/GPS double system. This algorithm is based on optimum constellation configuration and underlying center method, the satellite selection is determined based on the characteristics of multisystem, and the algorithm is validated. The experimental results show that the algorithm can reduce calculation cost under the guarantee of positioning accuracy.

Key words: Beidou navigation satellite system (BDS), global positioning system (GPS), satellite selection, geometric dilution of precision (GDOP), optimum constellation configuration method

中图分类号:

TN 967.1

公才赫，茅旭初,李少远. 一种BDS/GPS双系统融合导航的快速选星方法[J]. 上海交通大学学报（自然版）, 2017, 51(6): 641-646.

GONG Caihe,MAO Xuchu,LI Shaoyuan. A Fast Satellite Selection Algorithm for
BDS/GPS Dual Navigation System[J]. Journal of Shanghai Jiaotong University, 2017, 51(6): 641-646.

参考文献

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