摘要
GNSS应用场景的多元化趋势使得用户对高精度实时定位服务的需求不断增加,以实时精密单点定位(Real-Time Precise Point Positioning, RT-PPP)为代表的高精度定位技术已成为当前卫星导航定位领域的研究热点。本文基于Visual Studio 2019平台设计了一款实时精密单点定位解算程序MGPSS,实现了RTCM数据流解码、坐标计算、结果输出、残差分析等功能。采用SSR改正信息对多个IGS观测站进行RT-PPP分析实验,结果表明,各测站NEU方向收敛至1m的平均时间为29min,最终收敛精度达厘米级,E方向精度0.043m, N方向0.032m, U方向0.066m,平面精度0.054m。
The diversified trend of GNSS application scenarios has caused users to continuously increase the demand for high-precision real-time positioning services. High-precision positioning technology represented by Real-Time Precise Point Positioning(RT-PPP) has become the current satellite navigation research hotspots in the field of positioning. Based on the Visual Studio 2019 platform, this paper designs a real-time precision single-point positioning solution program MGPSS, which realizes the functions of RTCM data stream decoding, coordinate calculation, result output, residual analysis and so on. Using SSR correction information to perform RT-PPP analysis experiments on multiple IGS observation stations, the results show that the average convergence time of each station in the NEU direction is about 29 minutes, and the final convergence accuracy reaches centimeter level. The accuracy in the E direction is 0.043m, and the N direction is 0.032m, the U direction is 0.066m, and the plane accuracy is 0.054m.
作者
刘俊钊
李浩军
Liu Junzhao;Li Haojun(Collge of Surveying and Geo-Informatics,Tongi University,Shanghai 200092,China)
出处
《工程勘察》
2023年第3期40-43,50,共5页
Geotechnical Investigation & Surveying
基金
国家自然科学基金项目(41974025,42174019)。
