Satellite Based Augmentation System (SBAS)

Description

A Satellite Based Augmentation System (SBAS) is a wide area differential Global Navigation Satellite System signal augmentation system which uses a number of geostationary satellites, able to cover vast areas, to broadcast primary GNSS data which has been provided with ranging, integrity and correction information by a network of SBAS ground stations. While the primary purpose of SBAS is to provide integrity assurance, use of the system also increases the accuracy and reduces position errors to less than 1 meter.