Multi-GNSS Precise Positioning and Applications

Dear Colleagues,

Precise, cm-level satellite positioning is possible through the tracking of radio-frequency signals of the pseudo-range (code) and carrier-phase types. This has traditionally required expensive GPS receivers and antennas that cost several thousands of dollars. In the past few years, however, there has been a development of mass-market, low-cost, single- and multi-frequency receivers (and smartphones), which are able to track the code and phase signals from several regional and global navigation satellite systems (RNSSs/GNSSs). These RNSSs/GNSSs include BDS (China), Galileo (Europe), QZSS (Japan), NavIC (India) and GLONASS (Russia), and the lower cost enables precise GNSS positioning for a range of new applications. There has also been a recent development in low Earth orbit (LEO) satellites that can help to improve the positioning performance further when augmented with GNSS.

This Topical Collection aims to highlight the development of such multi-GNSS positioning models and the performance that can be obtained. Topics include, but are not limited to, the following:

• Multi-GNSS inter-system and inter- and intra-frequency biases.
• Single/multi-frequency and multi-GNSS positioning and applications, making use of high-grade and low-cost receiver and antenna equipment (including smartphones).
• LEO and GNSS augmentation.
• Reliability analysis (ARAIM/DIA) using multi-GNSS models and single/multiple frequencies.
• Multi-GNSS networks and precise point positioning (PPP), real-time kinematic (RTK), and national positioning infrastructure (NPI) developments.

Dr. Robert Odolinski
Dr. Amir Khodabandeh
Collection Editors

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