CTE-N07 — Ground Based Augmentation System (GBAS)

Ground Based Augmentation System (GBAS) is a civil-aviation safety-critical system that supports local augmentation -at airport level- of the primary GNSS constellation(s) by providing enhanced levels of service that support all phases of approach, landing, and departure operations. While the main goal of GBAS is to provide integrity assurance, it also increases the accuracy. The technology can be based on GPS L1 providing Cat I, GPS L1 providing up to Cat III, and Multi-Constellation / Multi-Frequency GBAS providing up to Cat III with improved performance, integrity and availability compared to GBAS based on GPS L1 only.