Which term describes the combination of base station and rover communication for corrections in surveying?

The term that describes the combination of base station and rover communication for corrections in surveying is Real Time Kinematic (RTK) positioning. This method is highly effective in providing centimeter-level accuracy in real-time conditions.

In RTK, the base station continuously sends correction data to the rover, which is the mobile unit receiving the GPS signals. The rover uses this information to improve the accuracy of its position measurements by correcting errors caused by factors like atmospheric delays, satellite orbit errors, and multipath effects. Because the data is transmitted in real-time, surveyors can achieve very precise measurements instantaneously, making RTK particularly useful for applications that require high precision, such as construction, agriculture, and geospatial mapping.

Static GPS involves collecting position data over a longer period and analyzing it afterward, while Differential GPS (DGPS) uses a network of reference stations for corrections but may not specifically indicate real-time operation. Post-processed GPS also entails gathering data over time and applying corrections post-survey, lacking the immediacy and real-time feedback that RTK provides.