Title: List of Global Navigation Satellite Systems currently operational and in development - Defence Aviation
Headings: List of Global Navigation Satellite Systems currently operational and in development
List of Global Navigation Satellite Systems currently operational and in development
Satellite navigation system performance is based on the following :
1 – GPS of the United States of America
2 – GLONASS of Russia
3 – Galileo of the European Union
4 – BeiDou of People’s Republic of China
5 – IRNSS or NAVIC of India
6 – QZSS of Japan

Content: It has been designed to be compatible with the GPS system of US and receivers can make use of combined signals from GPS and Galileo, mainly to increase the level of accuracy. 4 – BeiDou of People’s Republic of China
China has been using the system BeiDou for its military and civilian navigation purposes. It is currently in the second generation and was formerly known as COMPASS, and serves the Asia-Pacific region in addition to China. It makes use of 30 Medium Earth Orbit Satellites and 5 satellites that are in geostationary orbit. 5 – IRNSS or NAVIC of India
IRNSS (Indian Regional Navigation Satellite System) or NAVIC (Navigation with Indian Constellation) is the satellite navigation system used by the Indian Space Research Organization, which is directly controlled by the Indian Government. It consists of 7 satellites out of which 3 are placed in geostationary orbit while the other four are in geosynchronous orbit. It has a very large signal footprint in comparison to the number of satellites in operation. All satellites in the constellation have been launched from within India, and the system will be fully operational in 2016. 6 – QZSS of Japan
The Quasi-Zenith Satellite System (QZSS), is a proposed three-satellite regional time transfer system and enhancement for GPS covering Japan. The first demonstration satellite was launched in September 2010.