The Global Navigational Satellite System (GNSS) is designed to solve the functions of positioning, navigation and timing using artificial moons.

Satellite positioning with GNSS technology is based on the fact that the position of artificial moons is known, they can be considered, in a geometric sense, as points known at a given point in time in a defined reference system. This is because the orbital data of the satellites are determined by orbital tracking stations that detect ground points at a known position. navigation data is radiated by the artificial moons themselves. The user (the GNSS receiver) indirectly determines the distance between the receiver and some satellites detected simultaneously (simultaneously), and then knowing these distances and the satellite positions, the position of the receiver can be calculated in a given reference system. The speed of the receiver can also be calculated, as the time that elapses between the two position determinations of the receiver is known.

There are several satellite systems in operation around the world, the best known and earliest of which is GPS. GPS is a positioning system developed and operated by the United States that has up to 32 different orbits around the Earth. It consists of satellites orbiting at an altitude of approx. 20,000 kilometers. The number of satellites varies as older ones are constantly being replaced. Operating since 1978 and available worldwide since 1994, GPS is currently the most widely used satellite navigation system in the world.

GNSS / GPS applications include:

• tracking / imaging devices,
• industrial machines,
• sea shipping,
• air navigation,
• cars.

The term GPS comes from the name of the United States GNSS system, the Global Positioning System. Other satellite systems include the Russian-developed GLONASS, the Chinese Beidou and the EU's Galileo. Modern tracking devices are already able to work with several satellite systems, such as the Teltonika FMT100 vehicle tracker we sell.