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Testing of Precise Point Positioning Method
Nosek, Jakub ; Kratochvíl, Radim (referee) ; Machotka, Radovan (advisor)
This diploma thesis deals with the Precise Point Positioning (PPP) method in various variants. The thesis describes the theoretical foundations of the PPP method and the most important systematic errors that affect accuracy. The accuracy of the PPP method was evaluated using data from the permanent GNSS station CADM, which is part of the AdMaS research center. Data of the period 2018 – 2019 were processed. The results of combinations of different GNSS and the results of different observation periods were compared. Finally, the accuracy was verified at 299 IGS GNSS stations.
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Prediction of gravity quantities values based on the terrestrial measurements and digital elevation model
Letko, Ivan ; Doudová, Lenka (referee) ; Machotka, Radovan (advisor)
The main objective of this master thesis is random equipartition concentration of measured gravimetric points in the area of interest pursuant by digital terrain model. Remove-Compute-Restore method was used for this purpose. In this thesis normal acceleration of gravity, topographic effect and Faye anomaly were subtracted from measured gravity. The result is Bouguer anomaly with general topographic effect which is interpolated for concentration points. We obtained predicated values of gravity after the restoration of subtracted effects. The main result of the thesis is the map of real gravity and precision evaluation of used method. Furthermore, the reductions of gravity, interpolation methods in programme ArcGIS, Remove-Compute-Restore method and the term of digital terrain model are explained in the thesis.
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Detection of spatial objects in a point cloud
Venený, Petr ; Machotka, Radovan (referee) ; Volařík, Tomáš (advisor)
The diploma thesis deals with processing of a point cloud that was collected via mobile mapping system. The first part sets a theoretical background, starting with mapping in general moving to mobile mapping systems and their particular parts. The practical part describes the whole process of data collecting, testing the automatic detection of spatial objects based on a point cloud and its visualisation. The results of the diploma thesis are GIS data layers and an evaluation of the process.
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Development and testing of device for absolute GNSS antenna calibration
Komárek, Josef ; Machotka, Radovan (referee) ; Kratochvíl, Radim (advisor)
The purpose of this diploma thesis is testing motion of the device for GNSS antenna calibration according to added weight to the device’s transom. First part of this thesis is devoted to introduction into GNSS antenna calibration problematics. The thesis deals further with development of the software used to process photogrammetric images that have been taken during testing measurement. The rest of the thesis is focused to process and evaluate the measurement. The result will be implemented into observation model used during calibration measurement. The period, during the device is still, will be corrected according to the result that has been obtained from the measurement.
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Documentation of the church in Čučice village
Súkeníková, Terézia ; Machotka, Radovan (referee) ; Kratochvíl, Radim (advisor)
The aim of this thesis is the documentation of the church of James the Greater in the South Moravian village Čučice. It is complete drawings of the structure, consisting of the topographic situation around the church, floor plans, vertical sections and views on the facade. Text part contents writing about working activities. It also discusses the historical and cultural characteristics of the church as immovable monument, the description of the preparatory work, a way of building surveying networks and methods of measurement. Finally, it highlights the processing of measured values in the computing and graphics phases. Use of this thesis and its evaluation is given in the final chapter. Graphic documentation, along with sketches, notebooks, calculation protocols, lists of coordinates, and testing the accuracy are in the annex section.
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The Mapping Survey of the Dominican Convent in Znojmo city
Kubín, Petr ; Machotka, Radovan (referee) ; Kuruc, Michal (advisor)
The subject of the diploma thesis is the geodetic survey of historical part of Dominican monastery in Znojmo city and to create documentation of the building. The thesis contains a description of the place of interest, preparation for work and measuring process. Next part the thesis deals with the requirements of creating the drawing documentation of the ground plan and the vertical section and also testing results of the work. The final documentation will be used for the reconstruction of the building.
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