不同对流层解算策略对BDS-3双/三频PPP影响分析  

Analysis of the impact of different tropospheric solution strategy on BDS-3 dual/triple frequency PPP

作　　者：李善新 常文蝶 Li Shanxin;Chang Wendie(The Fourth Oil Production Plant of Dagang Oilfield Branch of China National Petroleum Corporation(Tanhai Development Company),Tianjin 300280,China;Henan Vocational College of Surveying and Mapping,Zhengzhou 451464,China)

机构地区：[1]中国石油天然气股份有限公司大港油田分公司第四采油厂(滩海开发公司),天津300280 [2]河南测绘职业学院,郑州451464

出　　处：《工程勘察》2025年第3期64-70,共7页Geotechnical Investigation & Surveying

基　　金：河南省高等学校重点科研项目(基金号:20B170002).

摘　　要：对流层延迟是影响BDS-3 PPP定位精度的主要误差之一,因此分析不同对流层解算策略对BDS-3 PPP的影响非常重要。本文基于8个IGS跟踪站连续7d数据,分析GMF、NMF、VMF1、VMF3对BDS-3双/三频PPP的影响。实验结果表明,4种对流层映射函数对BDS-3双/三频PPP影响较小,定位精度最大相差在亚毫米级。BDS-3双频与三频静态PPP水平与高程定位精度均在厘米级,动态PPP水平定位精度在厘米级,高程定位精度在分米级,三频PPP精度相比双频PPP精度有较明显提升,最大提升量超过25%。The tropospheric delay is one of the main errors that affect the positioning accuracy of BDS-3 PPP,so it is very important to analyze the impact of different tropospheric solution strategies on BDS-3 PPP.This paper analyzes the impact of GMF,NMF,VMF1 and VMF3 on BDS-3 dual/triple frequency PPP based on the data of eight IGS tracking stations for seven consecutive days.The experimental results show that the four tropospheric mapping functions have little impact on BDS-3 dual/triple frequency PPP,and the maximum difference in positioning accuracy is in sub-millimeter level.BDS-3 dual and triple frequency static PPP horizontal and vertical positioning accuracy are at the centimeter level,dynamic PPP horizontal positioning accuracy is at the centimeter level,and vertical positioning accuracy is at the decimeter level.Compared with dual-band PPP accuracy,triple frequency PPP accuracy has significantly improved,with the maximum increase of more than 25%.

关 键 词：BDS-3 对流层映射函数 PPP 双频 三频 

分 类 号：P228[天文地球—大地测量学与测量工程]