DGPS technology

DGPS, or Differential Global Positioning System, improves the accuracy of standard GPS by using a network of ground-based reference stations. These stations know their exact location and compare it to the GPS signals they receive. They send correction signals to GPS receivers nearby, helping them adjust their calculations to account for errors caused by atmospheric conditions or signal delays. This results in more precise positioning, often within a few centimeters to a meter, which is valuable for applications like surveying, navigation, and agriculture. Essentially, DGPS enhances GPS accuracy through localized correction signals from ground stations.