There are several different Global Positioning Systems (GPS) that are currently in operation around the world. Some of the most widely used GPS systems include:
- GPS: GPS (Global Positioning System) is a satellite-based navigation system that is operated by the US Air Force and provides global coverage and high-precision positioning information.
- GLONASS: GLONASS (Global Navigation Satellite System) is a satellite-based navigation system that is operated by the Russian Aerospace Defense Forces and provides global coverage and high-precision positioning information.
- Galileo: Galileo is a satellite-based navigation system that is operated by the European Union and provides global coverage and high-precision positioning information.
- BeiDou: BeiDou is a satellite-based navigation system that is operated by the Chinese government and provides global coverage and high-precision positioning information.
- QZSS: QZSS (Quasi-Zenith Satellite System) is a satellite-based navigation system that is operated by the Japanese government and provides regional coverage and high-precision positioning information in the Asia-Pacific region.
Overall, these are some of the main GPS systems that are currently in operation around the world, and they are used for a variety of applications, including navigation, mapping, location tracking, and more.