| 一种BDS/GPS双系统融合导航的快速选星方法 |
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| 引用本文： | 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,2017,51(6):641-646. |
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| 作者姓名： | 公才赫 茅旭初 李少远 |
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| 作者单位： | 上海交通大学 电子信息与电气工程学院， 上海 200240 |
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| 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.
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| 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 |
A Fast Satellite Selection Algorithm for
BDS/GPS Dual Navigation System |
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| 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. |
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| Authors: | GONG Caihe MAO Xuchu LI Shaoyuan |
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| Institution: | School of Electronic Information and Electric Engineering,
Shanghai Jiao Tong University, Shanghai 200240, China |
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| 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. |
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| Keywords: | Beidou navigation satellite system (BDS) global positioning system (GPS) satellite selection geometric dilution of precision (GDOP) optimum constellation configuration method |
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