Which GPS term refers to a rover receiving position corrections at the time of survey from a GPS base station?

• A. Real time kinematic differential GPS
• B. Differential correction
• C. Dilution of precision
• D. Post processed kinematic positioning

Answer: (A)

Real-time kinematic differential GPS describes getting position corrections from a base station while you’re surveying. The base knows its exact position and computes corrections for the rover’s measurements, sending them in real time so the rover can apply them immediately and determine a precise position on the spot. This is what gives real-time, centimeter-level accuracy during the survey.

Differential corrections without the real-time aspect would be applied after data collection (post-processed), and dilution of precision is about satellite geometry affecting error, not about receiving corrections. Post-processed positioning uses corrections after the fact rather than during the survey.