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This contribution provides an introducton to the Galileo Reference Centre (GRC) and a comparison between the performance of four Global Navigation Satellite Systems (GNSSs), as observed in Quarter 2 (Q2) 2024. More in detail, the four systems include Galileo, GPS, GLONASS, and BeiDou, while the performance of each system (or ‘constellation’) is measured (and compared) on a monthly basis. The proposed assessment is based on four Key Performance Indicators (KPIs) for the analysis in the ranging, the position, and the timing domain. Numerical results use reference products generated at the GRC based on the observations collected at a worldwide network of reference stations.

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GNSS Performance Assessment: Comparison Between the Performance of Galileo, GPS, GLONASS, and BeiDou

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  • 发表日期：

    2025年

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  • Marco Porretta,
  • Peter Buist

摘要

This contribution provides an introducton to the Galileo Reference Centre (GRC) and a comparison between the performance of four Global Navigation Satellite Systems (GNSSs), as observed in Quarter 2 (Q2) 2024. More in detail, the four systems include Galileo, GPS, GLONASS, and BeiDou, while the performance of each system (or ‘constellation’) is measured (and compared) on a monthly basis. The proposed assessment is based on four Key Performance Indicators (KPIs) for the analysis in the ranging, the position, and the timing domain. Numerical results use reference products generated at the GRC based on the observations collected at a worldwide network of reference stations.