GNSS coordinate basis establishment using simultaneous GNSS RTK measurements

Abstract

The graduation thesis deals with the quality estimation of simultaneous acquisition of 3D\ud coordinates using GNSS RTK method. The aim is to acquire the knowledge of the possibility\ud of the internal network quality improvement by RTK-measurements performed at different sites\ud at the same time. For this purpose we need several operators at different sites, which are\ud synchronized in timings of measurements.The test consists from a set of several\ud measurements acquired by RTK-method with different timing and different occupation\ud durations. For the experimental tests the network of three points has been established and\ud determined by a static GNSS method. On the same locations coordinates were further\ud determined using simultaneous measurements of multiple receivers as well as by successive\ud measurements with different timings of coordinate’s determination. RTK coordinates were\ud compared first with coordinates from a static determination. Second comparison of coordinates\ud of simultaneous and successive determination as well as coordinates with different occupation\ud durations was performed. From the experimental test we can conclude simultaneous RTKmeasurements,\ud if possible, enable better internal precision achievement. Second conclusion\ud is that longer occupation duration leads to the coordinates of a better quality