GNSS Signals and Precise Point Positioning

Dear Colleagues,

Since global navigation satellite systems (GNSSs) became available to the public, GNSSs have become a well-established tool in a broad area of research. They have provided unprecedented precision and reliability to navigation systems, especially when fused with other sensing modalities. Ushered in by an increasing demand for availability, accuracy, and reliability, the mitigation of these challenges has steered intense research on advanced receiver design. These requirements are imposed by critical applications such as autonomous driving, power grid, classical aviation, and terrestrial navigation, as well as unmanned aerial and ground vehicles.

The precise point positioning (PPP) technique is receiving increasing interest due to its cost-effectiveness, global coverage and high accuracy. PPP is the key technology to realize global, precise, real-time, dynamic positioning and navigation, and is also the frontier research direction of GNSSs. However, the emergence of multiple satellite navigation systems, including BDS, Galileo, modernized GPS, and GLONASS, brings great opportunities and challenges for PPP. These solutions are shaping the future of GNSS receivers through advanced signal processing and machine learning tools.

This Special Issue considers varied solutions and applications to improve GNSS navigation quality, as well as new applications and improvements in precise point positioning navigation. Special attention is devoted to smartphones and low-cost receivers, data analysis for GNSS, different types of navigation, data demodulation as for the Galileo High Accuracy Service, and combining different sensors with GNSS.

Prof. Dr. Thomas Pany
Guest Editor

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