Thesis focus was to analyse the quality of coordinates determined in real time using various methods of GNSS-RTK positioning in two different GNSS networks with two different GNSS receivers. Measurements were done multiple times at different time periods on three different locations – near permanent reference station in optimal conditions and at greater distance from it, in favourable and adverse conditions. We compared precision of coordinates computed by the instrument during the measurements with precision calculated on the basis of coordinates, determined independently on the basis of performed measurements. Evaluation of accuracy of certain coordinates was done by comparing mean values of coordinates determined on the basis of measurements with reference ones.
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