摘要
BDS-3已经组网完成,其多频信号的播发丰富了BDS-3定位的多样性,但当前对BDS-3单频PPP研究较少,因此该文进行了BDS-3系统B1C、B1I、B2A、B2B、B3I静态与仿动态PPP解算实验,分析了BDS-3单频PPP定位精度与收敛性。实验结果表明,BDS-3单频静态PPP定位性能较优,水平和高程定位精度都在厘米级,收敛时间相差较多,其中B2B频率定位精度优于L1和E1频率,且收敛时间最短,在70 min以内;BDS-3单频动态PPP定位性能较差,除个别频率,水平定位精度在厘米级,高程定位精度在分米级,首次收敛时间较长。
The BDS-3 network has been completed,and its multi-frequency signal broadcast has enriched the diversity of BDS-3 positioning.However,there are few studies on BDS-3 single frequency PPP.In this paper,we carried out B1I,B2A,B2B,B3I static and pseudo-dynamic PPP solution experiments,and analyzed the BDS-3 single frequency PPP positioning accuracy and convergence.The experimental results show that the BDS-3 single frequency static PPP positioning performance is better,the horizontal and elevation positioning accuracy is at the centimeter lev-el,and the convergence time is quite different.Among them,the B2B frequency positioning accuracy is better than the L1 and E1 frequencies,and the convergence time is the shortest.Within 70 min,BDS-3 single frequency dynamic PPP positioning performance is poor,except for indi-vidual frequencies,the horizontal positioning accuracy is at the centimeter level,the elevation positioning accuracy is at the decimeter level,and the first convergence time is long.
作者
尹宏杰
YIN Hongjie(Zhengzhou Planning,Survey and Design Institute,Zhengzhou 450000,China)
出处
《地理空间信息》
2023年第6期112-115,共4页
Geospatial Information
基金
西部矿产资源与地质工程教育部重点实验室(长安大学)开放基金资助项目(300102261501)。
