Time-Base Accuracy Evaluation of Static, RTK, and PPK Surveys in Differential GNSS

Abstract

The Differential Global Positioning System (DGNSS), have three types of observations Static, Post processed Kinematics (PPK) and Real-Time Kinematic (RTK) focuses on real-world efficiency-accuracy trade-offs. In "time-based survey methodology" in GNSS applications, particularly focusing on accuracy and efficiency for India/ In DGNSS surveying methods that rely on the timing of satellite signals and observations achieve high positional accuracy which is time dependent. To confirm the most accurate methods, DGNSS  observations were taken using the three methods by fixing a base station, Rover station. Also, the different time of observation is considered to focus on accuracy and efficiency. It has been inferred for all the GNSS surveying procedures, the correction of all skills, that help to accomplish high positional accuracy. Static surveying is time-consuming but of high performance, whereas PPK rectifies errors after data collection, RTK provides positional perfections in real-time. Selecting an observational procedure shall offer empirical accurate data for surveyors to enhance fieldwork procedures. However, the time-based evaluation (30 minutes vs 1-hour static data showed an error difference of <=0.12”) is particularly valuable for resource-constrained projects. However, broader applicability requires deeper statistical validation.