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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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Zvýšení efektivity kontroly ramene tankovací nádrže
Sobotková, Kateřina ; Tůma, Jiří (referee) ; Blecha, Petr (advisor)
The diploma thesis consists of a new design of a controlling procedure for a plastic component of a tank. Its theoretical part deals with the potential sources of errors and uncertainties arising from the measuring itself. It also deals with the characteristics of available CMM devices and includes an analysis of the methods assessing the acceptability of the measurement plan. The practical part analyses systematically the current state and proposes a new solution using a program created using a coordinate machine. A comparison of both variants is presented as an output of the thesis.
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Precise Point Positioning with integer ambiguity resolution
Orviská, Terézia ; Václavovic,, Pavel (referee) ; Nosek, Jakub (advisor)
The aim of this diploma thesis is to compare the accuracy and time of convegence of the Precise Point Positioning (PPP) method and PPP with an integer ambiguity resolution and to asses the applicability of the PPP method in estimating earthquake magnitudes. The thesis describes the theoretical foundations of GNSS method PPP, important systematic errors and methods for their elimination. Subsequently, the solution to the practical part is presented. The data are processed from the period of 2020 using 14 selected permanent IGS stations. The PPP computation was preceded by a quality control. In the results, the PPP method with integer ambiguity resolution using uncombined observation exhibited the most consistent and accurate results with the fastest convergence. For magnitude estimation, three earthquakes from the Alaska region during the period of 2020-2021 were selected, and four combinations of methods were examined, with the best results once again provided by the PPP method with integer ambiguity resolution using uncombined observations.
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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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Zvýšení efektivity kontroly ramene tankovací nádrže
Sobotková, Kateřina ; Tůma, Jiří (referee) ; Blecha, Petr (advisor)
The diploma thesis consists of a new design of a controlling procedure for a plastic component of a tank. Its theoretical part deals with the potential sources of errors and uncertainties arising from the measuring itself. It also deals with the characteristics of available CMM devices and includes an analysis of the methods assessing the acceptability of the measurement plan. The practical part analyses systematically the current state and proposes a new solution using a program created using a coordinate machine. A comparison of both variants is presented as an output of the thesis.
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