| Term: |
GROUND BASED AUGMENTATION SYSTEM (GBAS) |
|---|---|
| Meaning: | A ground based GNSS station which provides local differential corrections, integrity parameters and approach data via VHF data broadcast to GNSS users to meet real-time performance requirements for CAT I precision approaches. The aircraft applies the broadcast data to improve the accuracy and integrity of its GNSS signals and computes the deviations to the selected approach. A single ground station can serve multiple runway ends up to an approximate radius of 23 NM. |
| Previous Term: | GROSS NAVIGATION ERROR (GNE) |
| Next Term: | GROUND BASED AUGMENTATION SYSTEM (GBAS) LANDING SYSTEM (GLS) |