BDS-3新频率与Galileo单频组合伪距单点定位精度分析

为对比分析北斗三号(BDS-3)/Galileo相同频率伪距单点定位精度,基于MGEX(Multi-GNSS Experiment)分布的跟踪站实测数据,分析了BDS-3、Galileo以及BDS-3/Galileo单系统单频、双系统相同频率组合和非相同频率组合伪距单点定位精度.经研究发现,BDS-3/Galileo相...

Accuracy analysis of single-point positioning in pseudo-range combined with BDS-3 new frequency and Galileo single frequency

In order to compare and analyze BDS-3/Galileo compatible frequency pseudorange singlepoint positioning accuracy,based on the measured data of MGEX distributed tracking stations,singal point positioning accuracy of pseudorange combination of dual-system compatible frequencies and non-compatible frequenry of BDS-3 and Galileo are analyzed,together with that of single frequency of BDS-3 and Galileo respectively.It is found through research that BDS-3/Galileo combination effectively improves the visible number of satellites and the geometric structure of satellite spatial distribution compared to a single system.In terms of single system positioning,the single point positioning accuracy of B1C and B2a pseudorange of BDS-3 is better than that of comesponding compatible frequenry of Galileo.In terms of dual-system positioning,the single point positioning accuracy of compatible frequenry pseudorange combination of BDS-3/Galileo is better than that of non-compatible frequenry combination.and the dual-system combination positioning improves the Galileo single-system positioning accuracy better BDS-3,which indicates that the design of BDS-3 compatible frequency effectively improves the compatibility with Galileo system.