GPSposisjonering

GPSposisjonering, or Global Positioning System positioning, refers to the process of determining one's geographical location using signals from the Global Positioning System (GPS) network. This system consists of a constellation of satellites orbiting the Earth, each broadcasting precise time and orbital data. A GPS receiver on the ground listens for 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 them. Using trilateration, a mathematical technique, the receiver can then pinpoint its exact latitude, longitude, and altitude. The accuracy of GPSposisjonering can vary depending on factors such as atmospheric conditions, satellite geometry, and receiver quality, but typically ranges from a few meters to less than a meter in ideal conditions. This technology has widespread applications, including navigation for vehicles and hikers, surveying, precision agriculture, emergency services, and scientific research.