Differential Global Positioning System (DGPS)

DGPS is a technology used to enhance the accuracy of Global Navigation Satellite Systems (GNSS) by measuring and correcting the GPS errors caused by atmospheric conditions and other factors. It works by comparing the GPS signals received by a stationary base station with the signals received by a mobile receiver, which is installed on a moving object such as a ship or an aircraft. The difference between the two signals is used to calculate corrections for the satellite positioning and eliminate the GPS errors caused by atmospheric effects, selective availability, and other factors.

DGPS provides a more accurate and reliable GPS positioning for navigation, surveying, and other applications requiring precise location information. It can be used to improve the accuracy of marine navigation, aviation, land surveying, and other applications that rely on GPS technology. The accuracy of DGPS depends on the distance between the base station and the mobile receiver, as well as the quality of the GPS signals received. DGPS is widely used in various industries and has become an essential tool for many applications that require high-precision GPS positioning.