 GPS-aided GEO augmented navigation

GPS-aided GEO Augmented Navigation (GAGAN) is a satellite-based augmentation system designed to enhance the accuracy and reliability of Global Positioning System (GPS) signals for aviation and other applications. It specifically uses geostationary satellites to improve the performance of GPS navigation systems. ### Key Features of GAGAN: 1. **Augmentation of GPS Signals**: GAGAN provides additional information that enhances the standard GPS signals.