Considering the remarkable progress of the Galileo constellation in recent years, the main objective of this study is to evaluate the performance of dual- and single-frequency Galileo-based precise point positioning (PPP), and its contribution to GPS and Galileo integration with different precise products generated by four analysis centers (ACs) within the context of the Multi-GNSS Experiment (MGEX) of the International GNSS Service (IGS). For this purpose, the daily observation dataset collected at ten IGS stations over one month was processed in both static and kinematic modes for Galileo-only, GPS-only, and GPS/Galileo PPP scenarios. For dual-frequency PPP, the results demonstrate that while the Galileo-only solutions are highly comparable with GPS-only PPP for the static mode, the mean 3D positioning errors for Galileo-only processes are approximately 1-cm higher than those obtained from GPS-only solutions for all agencies. The analysis to evaluate the influence of Galileo s...

中文翻译：

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基于Galileo的精确点定位与不同的MGEX产品

考虑到近年来Galileo星座的显着进步，本研究的主要目的是评估基于双频和单频Galileo的精确点定位（PPP）的性能，以及不同点对GPS和Galileo集成的贡献由四个分析中心（AC）在国际GNSS服务（IGS）的Multi-GNSS实验（MGEX）范围内生成的精确产品。为此，在仅伽利略，仅GPS和GPS /伽利略PPP方案的静态和动态模式下，处理了一个月内在十个IGS站收集的每日观测数据集。对于双频PPP，结果表明，在静态模式下，仅伽利略解决方案与仅GPS PPP具有高度的可比性，与所有机构的仅GPS解决方案相比，仅Galileo流程的平均3D定位误差大约高1厘米。分析评估伽利略号的影响...