BDS-3/GPS/Galileo超长基线解算性能评估  

BDS-3,GPS and Galileo Ultra-long Baseline Solution Performance Evaluation

作　　者：孙希艳 SUN Xiyan(Shandong Provincial Institute of Land Surveying and Mapping,Jinan 250013,China)

机构地区：[1]山东省国土测绘院,山东济南250013

出　　处：《测绘与空间地理信息》2024年第1期113-116,共4页Geomatics & Spatial Information Technology

摘　　要：由于当前对BDS-3超长基线单历元解算性能研究较少,为进一步详细分析BDS-3超长基线定位性能,将IGS站组成的一组超长基线作为实验数据,以BDS-3系统B1C/B2a组合为基础,分别进行了与GPS系统L1/L5、Galileo系统E1/E5a双组合和三系统组合解算实验。实验结论表明,双系统和三系统组合卫星可见数与PDOP相比BDS-3单系统改善量约为2倍左右,在定位性能方面相比BDS-3单系统也有明显提升。BDS-3超长基线定位性能较差,而其他系统的加入能有效改善这一情况,可为今后超长基线单历元解算研究提供参考。Due to the lack of research on the single epoch solution performance of BDS-3 ultra-long baseline,in order to further analyze the positioning performance of BDS-3 ultra-long baseline,a set of ultra-long baselines composed of IGS stations is used as experimental data,and based on the combination of BDS-3 system B1C/B2a,the double-combination and triple-combination experiments with GPS system L1/L5 and Galileo system E1/E5a were carried out respectively.The experimental results show that compared with PDOP,the number of satellites in the combination of dual and triple systems is improved by about 2 times of the BDS-3 single system,and the positioning performance is also significantly improved compared with the BDS-3 single system.The positioning performance of BDS-3 ultra-long baseline is poor,and the addition of other systems can effectively improve this situation,which can provide a reference for future research on ultra-long baseline single epoch solution.

关 键 词：BDS-3/GPS/Galileo 超长基线 单历元 定位性能 

分 类 号：P228.4[天文地球—大地测量学与测量工程]