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

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