Dear Colleagues,

In modern communications, the software-defined radio (SDR) provides a well-known approach that allows the implementation of receivers with a high flexibility level. Global navigation satellite system (GNSS) receivers make no exception to this fact, and, in recent years, several examples of software (SW) GNSS receivers have been published in the literature. The advantage is two-fold: not only can the GNSS SDR receiver be easily updated during its operational life, but it is an outstanding tool for prototyping innovative algorithms. In the last decade, considerable effort has been devoted by the GNSS scientific community to SDR developments and standardization, which has resulted in numerous open-source projects.

This Special Issue aims to collect the most recent GNSS SDR developments, including the implementation and prototyping of new digital architectures for GNSS receivers on different platforms, e.g., standard-PC (general-purpose processors), single board computers (SBCs), embedded boards, graphics processing units (GPUs), smartphones; GNSS receivers, including those with real-time capabilities, research tools, and snapshot receivers; and data collection systems, e.g., SDR GNSS front-ends (FEs). Special attention should be given to implementation choices and details, optimizations for real-time processing, computational burden analysis, and performance evaluation. All applications will be of interest.

Dr. Micaela Troglia Gamba
Dr. Mario Nicola
Prof. Dr. Thomas Pany
Guest Editors

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• GNSS SDR developments
• real-time GNSS SW receivers
• research and teaching tools
• snapshot receivers
• data collection systems, e.g., SDR Fes
• prototyping of new digital architectures for GNSS elaboration
• implementation details and optimizations