Horizontal distance from continuously working reference GNSS station influence on the position accuracy

摘要

The aim of our thesis was to check the effect of distance from the continuously workingudGNSS reference station on the accuracy of positioning when using static and kinematicudGNSS surveying methods. Field measurements were carried out at six points in the areaudnear Ljubljana and Vrhnika at distances from 5 to 25 kilometres from the GNSS continuouslyudworking reference station in Ljubljana. Coordinates of selected points were determined usingudrapid static and RTK measuring method. In RTK method a virtual reference station VRSudcreated near the worksite and permanent station GSR1 were used as reference stations.udWhen processing the rapid static observations VRS located at different distances from theudworksite was used as the reference. With rapid static we also examined the rule: theudobservation time = 10 min + 1 min · b, trajanje where b was the distance from the referenceudstation. We found out that the observation time needs to be longer if we are further awayudfrom the reference station.