六大定位系统在本土范围内定位性能对比分析
Comparative analysis for localization performance of six major localization systems within local scope
方靖1
作者信息
- 1. 湖南省第三测绘院,湖南 长沙 410011;湖南省地理空间信息工程技术研究中心,湖南 长沙 410011;地理信息安全与应用湖南省工程研究中心,湖南 长沙 410011
- 折叠
摘要
随着全球各领域对导航定位技术需求的日益增加,针对当前可用卫星导航定位系统在各自本土范围内定位性能问题,本文基于多测站数据,使用单频单点定位技术,初步评估了BDS-3、GPS、Galileo、GLONASS、QZSS、IRNSS在各自本土范围内多频伪距单点定位性能.实验结果表明,BDS-3在中国境内卫星可见数最多、PDOP值最低,GPS、Galileo、GLONASS卫星可见数和PDOP值相近,QZSS和IRNSS相对较差.BDS-3五个频率、GPS系统L1频率和L2频率、Galileo系统除E6频率外伪距单点定位精度最优,水平定位精度优于1m,高程定位精度优于2m,其次为G1频率,水平定位精度优于2m,高程定位精度优于3m,其余频率伪距单点定位精度略差.研究结果可以为今后选择哪种系统进行定位提供实际参考意见.
Abstract
As the demand for navigation and positioning technology increases across various fields globally,regarding the positioning performance issues of currently available satellite navigation and positioning systems within their respective local ranges,based on multi-station data,single-frequency single-point positioning technology is utilized to conduct a preliminary assessment of the multi-frequency pseudorange single-point positioning performance of BDS-3,GPS,Galileo,GLONASS,QZSS,and IRNSS within their respective local areas.The experimental results indicate that BDS-3 has the highest number of visible satellites and the lowest PDOP value within China.The number of visible satellites and PDOP values for GPS,Galileo,and GLONASS is similar,while QZSS and IRNSS exhibit relatively poorer performance.Among BDS-3′s five frequencies,the L1 and L2 frequencies of the GPS system,and all but the E6 frequency of the Galileo system offer optimal pseudorange single-point positioning accuracy,with horizontal positioning accuracy better than 1 m and vertical positioning accuracy better than 2 m.The next best accuracy is achieved with the G1 frequency,with horizontal positioning accuracy better than 2 m and vertical positioning accuracy better than 3 m.Accuracy for the remaining frequencies is slightly lower.These research findings can provide practical guidance for future selection of positioning systems.
关键词
六大系统/本土定位/伪距单点定位/精度Key words
six major systems/local positioning/pseudo range single point positioning/accuracy引用本文复制引用
出版年
2024
NETL
NSTL
万方数据