GPS-aided Geo-augmented Navigation

GPS-aided Geo-augmented Navigation

The GPS aided geo augmented navigation or GPS and geo-augmented navigation system (GAGAN) is a planned implementation of a regional satellite-based augmentation system (SBAS) by the Indian government. It is a system to improve the accuracy of a GNSS receiver by providing reference signals. The AAI’s efforts towards implementation of operational SBAS can be viewed as the first step towards introduction of modern communication, navigation, surveillance/Air Traffic Management system over Indian airspace.

The project involves establishment of 15 Indian Reference Stations, three Indian Navigation Land Uplink Stations, three Indian Mission Control Centers and installation of all associated software and communication links. GAGAN is planned to get into operation by the year 2014. It will be able to help pilots to navigate in the Indian airspace by an accuracy of 3 m. This will be helpful for landing aircraft in tough weather and terrain like Mangalore airport and Leh.

Read more about GPS-aided Geo-augmented Navigation:  Implementation, Technology, Technology Demonstration, Technology Integration, Effective Flight-management System, Developments