Global navigation satellite system (GNSS) is a general term describing any satellite constellation that provides positioning, navigation, and timing (PNT) services on a global or regional basis.
While GPS is the most prevalent GNSS, other nations are fielding, or have fielded, their own systems to provide complementary, independent PNT capability. The main ones are described below.
1.GPS - USA
2. BeiDou Navigation Satellite System (BDS) - CHINA
3.Galileo - Europe
4.GLONASS - Russian federation
5.Indian Regional Navigation Satellite System (IRNSS) / Navigation Indian Constellation (NavIC) - INDIA
6. Quasi-Zenith Satellite System (QZSS) - JAPAN
While GPS is the most prevalent GNSS, other nations are fielding, or have fielded, their own systems to provide complementary, independent PNT capability. The main ones are described below.
1.GPS - USA
2. BeiDou Navigation Satellite System (BDS) - CHINA
3.Galileo - Europe
4.GLONASS - Russian federation
5.Indian Regional Navigation Satellite System (IRNSS) / Navigation Indian Constellation (NavIC) - INDIA
6. Quasi-Zenith Satellite System (QZSS) - JAPAN