GPS satellite system

The GPS satellite system consists of a network of orbiting satellites that continuously broadcast signals containing their positions and the precise time. GPS receivers, like those in smartphones or cars, pick up these signals from at least four satellites simultaneously. By calculating the time it takes for each signal to arrive, the receiver determines its distance from each satellite. Using this information, it triangulates its exact location—latitude, longitude, and altitude—on Earth. This system provides accurate positioning for navigation, mapping, and various location-based services worldwide.