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Differential GPS (DGPS) is a type of Global Positioning System (GPS) software that uses a network of ground-based reference stations to improve the accuracy of GPS signals. It works by comparing the GPS signal received by the user to the signal received by the reference station, and then calculating the difference between the two. This difference is then used to correct the user's GPS signal, resulting in a more accurate location. DGPS is used in a variety of applications, including surveying, navigation, and mapping.
DGPS is becoming increasingly popular due to its accuracy and cost-effectiveness. It is also becoming more widely available, as more companies are offering DGPS services. Some of the companies in the DGPS market include Trimble, Topcon, Hemisphere GPS, and NovAtel. Show Less Read more
