摘要
为验证BDS-3新三频PPP模型的定位性能,在原始观测方程的基础上推导新三频PPP模型,并重新推导模型中的伪距偏差改正。利用14个MGEX测站观测到的数据对3种三频PPP模型及2种传统双频非差非组合模型的静态和动态定位性能进行比较分析。结果表明,新三频PPP模型在收敛时间和定位精度上均有所提升,其中TDF模型的提升效果最好。
In order to verify the positioning performance of the new triple-frequency PPP model of the BDS-3 system,we derive the new triple-frequency PPP model based on the original observation equation and derive the pseudorange deviation correction again in the model.Using BDS-3 data observed by 14 MGEX stations,we compare and analyze the static and dynamic positioning performances of three triple-frequency PPP models and two traditional dual-frequency uncombined models.Experimental results show that the new triple-frequency PPP model can improve convergence time and positioning accuracy,and the TDF model has the greatest improvement effect.
作者
吴志远
王潜心
胡超
武威
WU Zhiyuan;WANG Qianxin;HU Chao;WU Wei(School of Environment and Spatial Informatics,China University of Mining and Technology,1 Daxue Road,Xuzhou 221116,China;School of Spatial Information and Geomatics Engineering,Anhui University of Science and Technology,168 Taifeng Street,Huainan 232001,China)
出处
《大地测量与地球动力学》
CSCD
北大核心
2022年第8期846-851,共6页
Journal of Geodesy and Geodynamics
基金
国家重点研发计划(2020YFA0713502)。
关键词
BDS-3
三频PPP模型
双频非组合模型
伪距偏差改正
定位性能
BDS-3
triple-frequency PPP model
dual-frequency uncombined model
pseudorange deviation correction
positioning performance
