摘要
提出一种基于分区综合改正数的北斗卫星导航系统(BDS)和GPS双系统组合(BDS/GPS)动态精密单点定位(PPP)模型。选取15个MGEX(multi-GNSS experiment)测站作为参考站或用户站进行试验,统计分析了20 d的BDS/GPS动态精密单点定位的精度及收敛性。结果表明,BDS双频动态精密单点定位平均13 min收敛至三维定位误差小于1 m,平均平面精度和平均高程精度分别优于0.15 m和0.30 m;BDS/GPS双频动态精密单点定位平均3 min收敛至三维定位误差小于1 m,平均平面精度和平均高程精度分别优于0.07 m和0.15 m。
In this paper,a kinematic precise point positioning(PPP)model of BeiDou System(BDS)/GPS using zone corrections is proposed.Fifteen MGEX(multi-GNSS experiment)stations are selected as reference stations or evaluation stations.Then,the accuracy and the convergence of kinematic precise point positioning of BDS/GPS are analyzed based on 20-day data.Results show that BDS dual-frequency kinematic precise point positioning converges to 1 m in 13 min on average and the coordinate accuracy reaches 0.15 m in horizontal and 0.30 m in vertical component after convergence.The BDS/GPS dual-frequency kinematic precise point positioning shows better accuracy and shorter converge time,which converges to 1 m in 3 min on average and the coordinate accuracy is less than 0.07 m and 0.15 m in horizontal and vertical component,respectively.
作者
王阿昊
陈俊平
张益泽
王解先
王彬
WANG Ahao;CHEN Junping;ZHANG Yize;WANG Jiexian;WANG Bin(College of Surveying and Geo-Informatics,Tongji University,Shanghai 200092,China;Shanghai Astronomical Observatory,Chinese Academy of Sciences,Shanghai 200030,China;School of Astronomy and Space Science,University of Chinese Academy of Sciences,Beijing 100049,China;Shanghai Key Laboratory of Space Navigation and Positioning Techniques,Shanghai 200030,China;College of Marine Technology,Tokyo University of Marine Science and Technology,Tokyo 1358533,Japan)
出处
《同济大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2020年第3期447-455,共9页
Journal of Tongji University:Natural Science
基金
国家重点研发计划(2018YFB0504300)
国家自然科学基金(11673050)。
