What is GAGAN?
GAGAN is a satellite-based augmentation system developed by the Indian Space Research Organization (ISRO) in collaboration with the Airports Authority of India (AAI). GAGAN uses geostationary satellites to broadcast correction signals that enhance the accuracy and reliability of GPS signals in the Indian subcontinent and neighboring regions. GAGAN improves the accuracy of GPS signals from 20 meters to 1.5 meters and provides better coverage in remote and mountainous areas.
Difference Between GAGAN and GPS
Global Positioning System (GPS) is a satellite-based navigation system that provides location and time information anywhere on Earth. GPS is widely used for navigation, surveying, and tracking applications. GAGAN (GPS Aided Geo Augmented Navigation) is a satellite-based augmentation system developed by the Indian Space Research Organization (ISRO) to improve the accuracy and reliability of GPS signals in India and neighboring regions.