GNSS technology enables the geodesy to acquire high productivity and immediate results of the point positions of homogenous accuracy in the global coordinate system. RTK-GNSS is the dominant surveying method at the moment. For the realization of the method we need the GNSS receiver at a known point or a GNSS network that consists of a group of reference stations, that transmit observation data in order to ensure a high accuracy of determining the position of the rover. The geographical scope of service depends on the GSM signal coverage, while the quality of position determination is a matter of distance between the rover and the reference station. While using GNSS network, distances between the reference stations can be greater than when using an independent station, since the network allows us to model the impact on the observations. In the thesis we established our own GNSS reference station, which enables the transmission of observation data over the Internet using the NTRIP protocol. We carefully selected the permanent station and determined the four testing points through the static GNSS observation method, using the GNSS network SIGNAL as reference. By comparing the positions of control points provided through the RTK surveying method with a link to our own permanent GNSS station and the permanent network SIGNAL depending on the reference value, presented by the results of the static GNSS surveying, we determine the optimal scope of our own permanent GNSS station.
|