What is the stated accuracy of DGPS?

What is the stated accuracy of DGPS?

• A. 5 meters
• B. 10 meters
• C. 15 meters
• D. 20 meters

Answer: (B)

The stated accuracy of Differential Global Positioning System (DGPS) is typically within 10 meters. DGPS improves the accuracy of location data provided by standard GPS by using a network of fixed ground-based reference stations that transmit the difference between the positions indicated by the GPS satellites and their known fixed positions. This correction data helps to refine the position provided by the GPS unit, reducing the errors that can occur due to atmospheric conditions, satellite positioning, and other factors. The choice of 10 meters reflects the realistic and achievable accuracy level under normal operating conditions for DGPS, making it a preferred option in many applications that require higher precision than standard GPS provides.

The stated accuracy of Differential Global Positioning System (DGPS) is typically within 10 meters. DGPS improves the accuracy of location data provided by standard GPS by using a network of fixed ground-based reference stations that transmit the difference between the positions indicated by the GPS satellites and their known fixed positions. This correction data helps to refine the position provided by the GPS unit, reducing the errors that can occur due to atmospheric conditions, satellite positioning, and other factors.

The choice of 10 meters reflects the realistic and achievable accuracy level under normal operating conditions for DGPS, making it a preferred option in many applications that require higher precision than standard GPS provides.