581 |
Měření parametrů GNSS přijímačů / Measurement of GNSS receiver parametersBeneš, Jiří January 2020 (has links)
Goal of this thesis is to propose and realize a viable method to determine static a dynamic parameters of GNSS receivers. Thesis begins with research of GNSS, foremostly determining position and associated uncertainties of measurement. Following chapter contains research of GNSS receivers, data flow and methods of evaluating parameters of such measurements. Summary of obtained information is then used to schedule measurements, assemble experiment and create evaluating metrics. Main selected evaluating metric is weighted histogram of deviations with extended information. Aplication of proposed metrics onto measurements of GNSS receivers augments available information of GNSS receiver accuracy for whole range of values. This metrics also supplies additional statistical information about course of measurement.
|
582 |
Testování metody Precise Point Positioning / Testing of Precise Point Positioning MethodNosek, Jakub January 2020 (has links)
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.
|
583 |
Monitorování výrobní přesnosti / Monitoring of production accuracyJelínek, Adam January 2020 (has links)
This master thesis is about implementation of cloud systems for the purpose of monitoring and advancing production accuracy of CNC machine tools within context of Industry 4.0. A demonstration application was created. It is hosted in MindSphere cloud from the Siemens company.
|
584 |
Detekce stresu a únavy v komplexních datech řidiče / Stresss and fatique detection in complex driver's dataŠimoňáková, Sabína January 2021 (has links)
Main aim of our thesis is fatigue and stress detection from biological signals of a driver. Introduction contains information on published methods of detection and thoroughly informs readers about theoretical background necessary for our thesis. In the practical application we have firstly worked with a database of measured rides and subsequently chose their most relevant sections. Extraction and selection of features followed afterward. Five different classification models for tiredness and stress detection were used in the thesis and prediction was based on actual data. Lastly, the final section compares the best model of our thesis with the already published results.
|
585 |
Myoelectrical activity in elite and recreational fly casters in trout distance and trout accuracyIngemansson, Jimmy January 2021 (has links)
No description available.
|
586 |
Sledování malých změn objektů / Detection of Little ChangesČírtek, Jiří January 2008 (has links)
This diploma thesis inspects problems with specification location of edges with higher accuracy then one pixel (subpixel accuracy). In terms of this assignment has been created program, which generates three different shapes of objects. With change of parameters in program is measuring location of gravitational center on objects with subpixel accuracy. Obtained data of gravitational center deviations are depictured in graphs.
|
587 |
Modul kombinované globální satelitní navigace / Combined Global Navigation Satellite System ModuleJurajda, David January 2013 (has links)
The thesis objective is design of methodology focused on accuracy measurement in field of GPS/GLONASS receivers. Text is devided into five main parts. The first one is focused on GNSS technology. Second one deals with used coordinate systems and map projections (ETRS89, WGS84, UTM, Gauss-Krüger). Next part discusses statistical methods. Part four is focused on hardware. Then the final part describes experiment realization and obtained data analysis.
|
588 |
Přesnost měření na dílenských mikroskopech / Accuracy of measurement on workshop microscopePernikář, Václav January 2008 (has links)
This thesis deals with the performance of the measurement accuracy in the optical measuring systems. The first part describes basic principles of metrology and the guidelines of the expression of uncertainty and the factors which influence measurement result. The second part classifies optical measuring systems and describes some measuring principles of them. The final part compares two optical gauges and the evaluation of some of their characteristics through the use of very simple experiments.
|
589 |
Technologie rychlého prototypování za použití metody FDM a současně technologie vytavitelného modelu / RP technology using FDM method and investment casting technologySmrčka, Václav January 2008 (has links)
Determining accuracy of wax patterns is an important in wide implementing rapid prototyping methods in investment casting. This experiment is comparing wax pattern accuracy produced in classical metal die and silicone mould. It has been found out, that wax patterns produced by the silicone mould are ounly about one or two accuracy steps worse then wax patterns produced by classical metal die.
|
590 |
Rozměrová přesnost odlitků ze slitin Al vyráběných metodou vytavitelného modelu / Dimensional accuracy of Al castings manufactured by lost wax processKučera, Tomáš January 2008 (has links)
The aim of my diploma thesis was to find the possibilities of reaching the dimensional tolerance in the individual phases of casting by the investment casting process. The accuracy of the selected wax patterns and castings were measured by a caliper. At first the selected dimensions of the wax models were measured right after taking them out of the mold and then they were measured during seven days. The castings were measured after pouring. The obtained figures were statistically evaluated. The results show that the large-scale and thick-wall wax model should be coated after seven days of stabilization because the dimensions of the wax model are not stable.
|
Page generated in 0.1529 seconds