GPSsignaale

GPSsignaale refers to the radio signals transmitted by Global Positioning System (GPS) satellites. These signals are the foundation of the GPS technology, enabling receivers to determine their precise location on Earth. Each GPS satellite broadcasts at least two radio frequencies, known as L1 and L2, although newer satellites also transmit on L5. These signals carry essential information, including the satellite's exact orbital position (ephemeris data) and a highly accurate atomic clock time. A GPS receiver on the ground detects these signals from multiple satellites. By measuring the time it takes for the signals to arrive from at least four different satellites, the receiver can calculate its distance from each of those satellites. This process, known as trilateration, allows the receiver to pinpoint its latitude, longitude, and altitude. The accuracy of the position determination depends on several factors, including the quality of the receiver, atmospheric conditions, and the number and geometry of visible satellites. Interference, such as from buildings or natural terrain, can also degrade signal quality and reduce accuracy.