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Web applications supporting education of audio signal processing
Malcher, Tomáš ; Mokrý, Ondřej (referee) ; Rajmic, Pavel (advisor)
This bachelors thesis deals with a creation of web applications using JavaScript language. These web applications should be helpful in signal processing classes by showing and explaining different phenomenons to students. Students can see how different parameters affect the outcome of said issue. The theory needed for understanding and implementation is covered by this thesis. Thesis covers key parts of the code of said web applications and the libraries used for their implementaition.
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Web-Based Demo of Fourier Transform for Signal Processing Courses
Hyrš, Martin ; Plchot, Oldřich (referee) ; Černocký, Jan (advisor)
The aim of this work is to create a program demonstrating the Fourier transform. The introductory section summarizes the theory of Fourier transform and shows the procedure for its numerical approximation. The following chapter describes the existing applets. Subsequently, the concept of the demonstration and its implementation are described. The final part contains tutorial examples of using the application and summary of users' reactions.
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Semianalytical Computation of Fourier Series Coeficients
Hégr, Tomáš ; Kunovský, Jiří (referee) ; Šátek, Václav (advisor)
This bachelor thesis deals with semianalytical computation of the coefficients of the Fourier series. The aim of this work is to create a graphical user interface for program TKSL/C. The work contains the theory of Fourier series and Fourier transforms. The state of the art software is described in the following chapter. In the next parts the thesis describes the concept of the implementation of the user interface, some tutorial examples which were used and the summary of user testing.
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Measurement of basic electrical variables on drives of LV circuit breakers
Mazálek, Tomáš ; Valenta, Jiří (referee) ; Bušov, Bohuslav (advisor)
This thesis has been created for the purpose of comparing calculated values by oscilloscope and by Excel. There is also introduced the procedure calculating the maximum generated power by using macros in Excel. For this it was necessary to show a theory of electrical values of non-sinusoidal and aperiodic signal. There has been shown the methods of measuring of power consumption on motor operator for acquisition of relevant data. My thesis brings a wide overview, which is connected with motor operators. I am analyzing a principle of motor operator, methods of right measuring and I am describing a transfer of kinetic energy from driving motor to contacts of circuit breaker
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Implemetation of signal processing problems for teaching purposes
Ševčík, Zdeněk ; Rajmic, Pavel (referee) ; Mangová, Marie (advisor)
This thesis is focused on Fourier series, phasor diagram, signal resampling and amplitude modulation. All of there problems are analyzed in theoretical part of thesis. Here are derived all three form of Fourier series, described signal sampling, decimation and interpolation. Next thesis is focused on signal modulation and closer deal with amplitude modulation of harmonic and inharmonic signal. In practical part is example of calculation of Fourier siries for a specific signal, example of signal resampling and example of amplitude modulation for harmonic and inharmonic signal. Objective of practical part is creates programs focused on these problems. Programs should be interactive and their purpose is demonstrate the problem to students.
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Development of laboratory exercises for subject the Signals and systems analysis
Doleček, Josef ; Mucha, Ján (referee) ; Zvončák, Vojtěch (advisor)
The bachelor thesis deals with basic operation with signals and, using demonstrative applications in Matlab, it should explain these operation to CASS (Signals and Systems Analysis) students. In the theory part continuous-time signals (signals classification, periodic signals, Fourier series), complex numbers, sampling and discrete-time signals (operation of convolution and correlation) are described. Practical applications explain: square signal harmonics synthesis, two discrete-time signals convolution and cross-correlation, object distance detection by radar using cross-correlation, complex model of harmonic signal and signals sampling.
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Determination of a rectangular plate deformation
Mácha, Tomáš ; Profant, Tomáš (referee) ; Hrstka, Miroslav (advisor)
The aim of the thesis is to derive the analytical equations for calculating the deformation of a rectangular plate using Kirchhoff and Mindlin theory and their subsequent application. The first section provides some basic relations in the theory of elasticity, on which this derivation is based. Both of the theories are solved using Navier method of Fourier series. By the following the results of these two methods can be compared. The comparison is carried out using Python where the derived relations with given input parameters are used. This is how the magnitude of deflection over the entire surface of the plate is obtained. Historical part includes a description of the gradual development from the second half of the 18th century, up to the invention of the finite element method. Finally, these theories have been applied to some specific examples and the results have been analyzed and consecutively compared with results from ANSYS. The limitations and suitability of these theories are then outlined.
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Presentation of selected themes of BSIS in PPT-environment
Havlín, Radomil ; Šebesta, Vladimír (referee) ; Sigmund, Milan (advisor)
The bachelors thesis occupy by topics of the course BSIS, which can be presented by the multimedia and animation techniques in the presentation. In the introduction, these topics are given a different method of processing. In most cases, provides a modular solution by demonstration and argued spectrum signal. The chapters describe the operation with one, two signals at the time, the properties of Fourier transform with illustrative demonstration, the correlation with convolution, kvaziperiodické signals and the last chapter the spectrum of selective signals.
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The solving of ordinary differential equations by means of the infinite series method.
Dražková, Jana ; Štoudková Růžičková, Viera (referee) ; Čermák, Jan (advisor)
This bachelor's thesis is concerned with the solving of ordinary differential equations by means of the infinite series methods, in particular, the power series and the Fourier series. The aim of this thesis is to find the solution of the initial value problem for ordinary differential equations by use of the power series and compare this approach to traditional analytic methods. Further, the thesis deals with the solving of the second order linear ordinary differential equations with a periodic forcing term via the Fourier series method.
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