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Accuracy of Real Time Kinematic Method in Building of Geodetic Control
Nosek, Jakub ; Kuruc, Michal (referee) ; Bárta, Ladislav (advisor)
The aim of this bachelor thesis was to evaluate the accuracy of the RTK method in the creation of point fields. The RTK-measurement was carried out near the Faculty of Civil Engineering, Technical University in Brno, and near Jedovnice, by using the CZEPOS network and the Trimble VRS Now Czech network. These two locations have made it possible to assess the effect of receivers distance to the reference stations on measurement accuracy. At each point, two continuous coordinate records were executed by the RTK method after 10 seconds during 10 minutes. The graphs were compared to the coordinate differences of the pairs of independent measurements. The results of the RTK method were tested against the reference values determined by the common equalization of the measurement results of the fast static method and the terrestrial measurements by the total station using the LSM. The bachelor thesis also includes a comparison of the results of the transfer of spatial coordinates ETRF2000 to S-JTSK using precise global transformation performed by several transformation programs.
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Testing of the accuracy of the heights determined by GNSS
Kordasová, Klára ; Drápela, Zdeněk (referee) ; Kuruc, Michal (advisor)
The aim of this thesis is to test the accuracy of the heights measured by GNSS RTK with service providers CZEPOS and Trimble VRS Now. The thesis deals with precise of height measurement with the influence of surrounded obstacles, such as multipath, fading with the tall buildings, presence of high-voltage lines, limited shadow horizons at the edge of the forest, and measurement under the ideal conditions. The work also deals with the comparison of the period initialization of these monitored conditions. In the locations mentioned a network of test points was built. For measuring GNSS Leica System 1200 apparatus was used. It was measured always five times in five-second epochs and three times twenty-second epochs for each provider in five locations and thirty points during the mornings and afternoons. For independent height comparison the technical levelling was used. The outcome can be applied in practical use.
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Testing of the accuracy of the heights determined by GNSS
Kordasová, Klára ; Drápela, Zdeněk (referee) ; Kuruc, Michal (advisor)
The aim of this thesis is to test the accuracy of the heights measured by GNSS RTK with service providers CZEPOS and Trimble VRS Now. The thesis deals with precise of height measurement with the influence of surrounded obstacles, such as multipath, fading with the tall buildings, presence of high-voltage lines, limited shadow horizons at the edge of the forest, and measurement under the ideal conditions. The work also deals with the comparison of the period initialization of these monitored conditions. In the locations mentioned a network of test points was built. For measuring GNSS Leica System 1200 apparatus was used. It was measured always five times in five-second epochs and three times twenty-second epochs for each provider in five locations and thirty points during the mornings and afternoons. For independent height comparison the technical levelling was used. The outcome can be applied in practical use.
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Accuracy of Real Time Kinematic Method in Building of Geodetic Control
Nosek, Jakub ; Kuruc, Michal (referee) ; Bárta, Ladislav (advisor)
The aim of this bachelor thesis was to evaluate the accuracy of the RTK method in the creation of point fields. The RTK-measurement was carried out near the Faculty of Civil Engineering, Technical University in Brno, and near Jedovnice, by using the CZEPOS network and the Trimble VRS Now Czech network. These two locations have made it possible to assess the effect of receivers distance to the reference stations on measurement accuracy. At each point, two continuous coordinate records were executed by the RTK method after 10 seconds during 10 minutes. The graphs were compared to the coordinate differences of the pairs of independent measurements. The results of the RTK method were tested against the reference values determined by the common equalization of the measurement results of the fast static method and the terrestrial measurements by the total station using the LSM. The bachelor thesis also includes a comparison of the results of the transfer of spatial coordinates ETRF2000 to S-JTSK using precise global transformation performed by several transformation programs.
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