摘要
目前,北斗三号全球卫星导航系统全面开通,支持BDS-3导航芯片、模块等的关键技术已经全面突破。作为一种高精度定位技术,精密单点定位(PPP)已经被广泛应用,与此相关的是,基于BDS-3的PPP定位研究已经成为当前研究的热点。本文选用MGEX跟踪站的实测数据,对比分析了BDS-2、BDS-3、BDS-2/BDS-3和GPS等4种不同PPP定位解算模式下的静态和动态PPP定位精度,结果表明,BDS-3卫星的加入明显提高了PPP定位精度,静态和动态PPP 3个方向的定位精度均有较大提升。
Currently,the full operation of the Beidou-3 Global Satellite Navigation System has been successfully achieved with comprehensively developed key technologies,such as BDS-3 navigation chips and modules.As a high-accuracy positioning technology,Precise Point Positioning(PPP)has been widely applied.Accordingly,research related to Beidou-3-based PPP positioning has become a hot topic.In this study,using measurement data collected from the MGEX tracking station,we performed comparative analysis of static and dynamic PPP positioning accuracy among four different modes of PPP positioning solutions:BDS-2,BDS-3,BDS-2/BDS-3,and GPS.The results indicated that the addition of BDS-3 satellite significantly improved PPP positioning accuracy with static and dynamic PPP positioning in three directions.
作者
孟磊
林一鸣
张冀辉
MENG Lei;LIN Yiming;ZHANG Jihui(The First Institute of Surveying and Mapping Engineering of Heilongjiang Province,Harbin 150025,China)
出处
《测绘与空间地理信息》
2024年第S01期154-157,共4页
Geomatics & Spatial Information Technology
关键词
BDS-3
PPP
定位精度
收敛时间
BDS-3
precise point positioning
positioning accuracy
convergence time
