摘要
为进一步对比分析BDS-2、BDS-3、GPS不同组合间的精密单点定位精度,选取了5个IGS连续跟踪站连续7 d的实测数据,分析了BDS-2、BDS-3、GPS等7种不同情况下静态与动态精密单点定位精度。经研究发现,当前BDS-2精密单点定位精度低于BDS-3低于GPS,而BDS-2/BDS-3组合定位精度与GPS相当,三者任意组合定位精度较任一单系统都有较明显提升。其中BDS-2/BDS-3/GPS组合定位精度最高,较BDS-2单系统定位精度提升在60%以上,较BDS-3单系统定位精度提升在50%以上,较GPS单系统定位精度提升在40%以上。
In order to further compare and analyze the precision point positioning accuracy of different combinations of BDS-2,BDS-3,and GPS,we selected the seven-day measured data of five continuous IGS tracking stations,and analyzed the static and dynamic precision point positioning accuracy in the seven different situations of BDS-2,BDS-3 and GPS.The results show that the current precision point positioning accuracy of BDS-2 is lower than that of BDS-3 and GPS,while the combined positioning accuracy of BDS-2/BDS-3 is equivalent to GPS,and the positioning accuracy of any combination of three is better than any single system.Among them,the BDS-2/BDS-3/GPS combined positioning accuracy is the highest,which is more than 60%higher than the BDS-2 single system positioning accuracy,more than 50%higher than the BDS-3 single system positioning accuracy,and more than 40%higher than the GPS single system positioning accuracy.
出处
《地理空间信息》
2021年第6期68-71,78,I0002,共6页
Geospatial Information
基金
国家自然科学基金资助项目(41201193)。
