What is the primary benefit of using DGPS?

The primary benefit of using Differential Global Positioning System (DGPS) is the improved accuracy in position determination. DGPS enhances the standard Global Positioning System (GPS) by utilizing a network of fixed ground-based reference stations. These stations provide real-time corrections to the signals received by GPS satellites, which helps to account for various errors that can occur, such as atmospheric disturbances, satellite orbit inaccuracies, and other factors that affect GPS signal precision.

By applying these corrections, DGPS can achieve positional accuracy within a meter or even better, compared to the typical accuracy of standard GPS, which may be within several meters. This enhanced accuracy makes DGPS particularly valuable for applications where precise location information is critical, such as in surveying, navigation, and various geospatial analysis tasks.

Other options, such as increased satellite coverage, reduction of signal interference, and faster satellite signal acquisition, do not specifically address the core function of DGPS. DGPS operates within the existing satellite coverage framework and does not inherently increase the number of satellites. While it may help mitigate some signal interference through corrections, this is not its primary benefit. Finally, DGPS does not significantly affect the time it takes to acquire satellite signals, so speed of acquisition is also not a direct advantage of its