Comparison of deformation analyses performed on the basis of GNSS observations using single-frequenc y and double-freque ncy measurement receivers

The given article addresses 2D processing of a deformation network measured using Global Navigation Satellite Systems in partof the Dargovských Hrdinov housing estate. In order to performdeformation analyses and their comparison, two stages of measurementwere performed using single-frequency as well as double-frequency measurement receivers.Experimental measurements were taken using the static method by permanent observation at selected observed and reference points of the deformation network. The geodetic network in both stages was processed using the Gauss-Markov model with full rank and using the least square method whilst observations were tested and the results of performed deformation analyses were graphically visualised using relative confidence ellipses on the basis of a positional and altitudinal plan.