北斗三号卫星数据质量及产品精度评估研究  

作　　者：王军[1] 夏勇飞 章铭[1] 

机构地区：[1]安徽虹达道路桥梁工程有限公司,安徽合肥230051

出　　处：《现代传输》2023年第1期45-48,共4页Modern Transmission

基　　金：安徽省住房城乡建设科学技术计划项目(2021-YF17)。

摘　　要：为了进一步研究全球连续监测评估系统(i GMAS)的北斗三号卫星(BDS-3)卫星的数据质量以及相应的产品精度,文章从卫星数据质量、产品精度以及精密单点定位精度三个方面对BDS-3卫星性能进行了分析,数据质量分析结果表明:BDS-3卫星B1C与B2a频点信号的数据完整率基本能稳定在92%以上,多路径效应误差基本稳定在0.4m以内,且B1C/B2a频点信号周跳比总体小于全球卫星导航系统(GPS)卫星与伽利略卫星导航系统(Galileo);产品精度分析结果表明:BDS-3卫星的轨道精度与GPS以及Galileo卫星相比较差,基本稳定在25cm范围内,但钟差精度与GPS以及Galileo卫星的钟差精度基本在同一范围内,可稳定在2ns以内;精密单点定位结果表明:BDS-3定位精度可达1cm,与GPS在同一精度范围内。综上,BDS-3卫星信号稳定,可以满足全球导航定位的需求。In order to further study the data quality of BDS-3 satellite of i GMAS and the corresponding product accuracy, this paper analyzes the performance of BDS-3 satellite from three aspects of satellite data quality, product accuracy and precision single point positioning accuracy. The results of data quality analysis show that the data integrity of BDS-3 satellite B1C and B2a frequency point signals can basically be stabilized at more than 92%, and the multipath effect error can basically be stabilized at less than 0.4m, And the cycle slip ratio of B1C/B2a frequency point signal is generally smaller than that of GPS satellite and Galileo satellite;The results of product accuracy analysis show that the orbit accuracy of BDS-3 satellite is relatively poor compared with GPS and Galileo satellite, and is basically stable within 25cm, but the clock error accuracy is basically within the same range as GPS and Galileo satellite, and can be stable within 2ns;The precision single point positioning results show that the positioning accuracy of BDS-3 can reach 1cm, which is within the same progress range as GPS. To sum up. BDS-3 satellite signal is stable and can meet the needs of global navigation and positioning.

关 键 词：北斗三号卫星导航系统 全球连续监测评估系统 质量分析 精度分析 

分 类 号：P228.4[天文地球—大地测量学与测量工程]