DefinePK

Abstract

This paper investigates the accuracy improvement of using two GNSS base receivers, instead of only one base receiver, in establishing GNSS static control points, up to baselines of 45 km. In this regards, a GNSS campaign was run to get the UTM coordinates of 15 new geodetic control points, using GNSS static technique by fixing one and two base receivers. The results showed that horizontal positional discrepancies P2d between the two solutions have a mean value of 4.6 mm with 1.2 mm standard deviation, while the spatial positional discrepancies P3d have a mean value of 5.6 mm with standard deviation 1.4 mm. These results can be considered insignificant from the accuracy point of view in establishing geodetic networks. On the other hand, from the economic and cost point of views, it is recommended to use only one dual-frequency GNSS receiver to save cost and time in establishing geodetic GNSS control points up to baselines of 45 km.