Satellite Navigation

Satellite navigation is the use of signals transmitted by navigation satellite constellations to determine position, velocity, and time. These systems operate by measuring the propagation time of precisely timed radio signals from multiple satellites to a receiver, allowing the receiver to compute its location through trilateration.

Satellite navigation systems typically comprise a satellite constellation, a ground control segment, and user receivers. Receiver outputs are often integrated with digital map data and other sensors to support applications such as maritime navigation, aeronautical navigation, land-vehicle navigation, surveying, and timing and synchronisation services.