Nextgen GNSS receivers for Dual Frequency SBAS operations and Advanced RAIM

Two axes investigated by the GNSS Evolutionary Architecture Study Panel (GEAS) as part of the evaluation of future GNSS-based architectures include Dual Frequency Satellite Based Augmentation System (SBAS) and Advanced Receiver Autonomous Integrity Monitoring (ARAIM) algorithm. With the release of the GEAS panel reports and the flight test results, avionics manufacturers were contracted to study where and what would be key challenges to integrate this technology into certifiable avionics. This paper presents a selection of Thales findings from the following perspectives: operation and system design, technical implementation, certification process and standardization.