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GAGAN Certified for Aviation in India

January 13, 2014  - By
Image: GPS World

The Director General of Civil Aviation (DGCA) of India certified on December 30 the GAGAN system to RNP0.1 (Required Navigation Performance 0.1 Nautical Mile) service level, according to The Hindu.

Now aircraft equipped with Satellite Based Augmentation System (SBAS) receivers will be able to use GPS-Aided Geo Augmented Navigation (GAGAN) signals in Indian airspace for en route navigation and non-precision approaches without vertical guidance.

Mission control centers, along with associated uplink stations, have been set up at Kundalahalli in Bangalore. Another control center and uplink station are in Delhi. A top official of the AAI said one of the Reference Stations has been housed outside the premises of the Thiruvananthapuram airport. The reference stations pick up signals from the orbiting GPS satellites. The measurements are immediately passed on to the mission control centers that then work out the necessary corrections that must be made. Messages carrying those corrections are sent via the uplink stations to the satellites in geostationary orbit that have the GAGAN payload.

The availability of the GAGAN signal in the country’s air space will bridge the gap between European Union’s European Geostationary Navigation Overlay Service (EGNOS) and Japan’s Multi-functional Satellite Augmentation System (MSAS) coverage areas.

The SBAS consists of 15 Indian Reference Stations, three Indian Navigation Land Uplink Stations, three Mission Control Centers, three Geo-Stationary Navigation Payload in C and L bands and with all the associated software and communication links.

GAGAN will provide augmentation service for GPS over India, the Bay of Bengal, South East Asia and the Middle East expanding up to Africa.

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