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DVB-T transport stream analysis software
Macek, Libor ; Hála, Ondřej (referee) ; Slanina, Martin (advisor)
This thesis deals with development and implementation of program which enables DVB transport stream service information analysis. Theoretical part is focused on MPEG2 source coding of video signal and multiplexing into DVB transport stream. Practical part deals with program’s individual software modules implementation, which are used for data reading, their processing and presentation in form of service information. The program enables analysis of service information from live terrestrial television broadcasting DVB-T by PC card TechniSat AirStar 2 usage.
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Dual-band directional antenna for receiving DVB-T signal
Matyáš, Petr ; Šebesta, Jan (referee) ; Lukeš, Zbyněk (advisor)
The main goal of the masters project is to design a dual band antenna for receiving DVB-T signal in the area of the city of Brno. The antenna will be designed and detaily adjusted for receiving multiplex 1 and 3, exactly for frequencies of 538 MHz and 778 MHz. The designed antenna will be deeply tested in 4nec2 and CST Microwave Studio programs.
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SFN and MFN networks design in DVB-T
Dostal, Radek ; Láčík, Jaroslav (referee) ; Kratochvíl, Tomáš (advisor)
Bachelor’s thesis is focused on SFN (Single Frequency Network) and MFN (Multi Frequency Network) networks design in digital television broadcasting based on DVB-T standard. First part of the thesis is focused on the theoretical description of the MPEG-2 transport stream and basic parameters of broadcasting network, transmitters and transmission path. In practical part are introduced basic parameters of a software package for broadcast network design in RadioLab, RadioBase and Sítě SFN, and results displayed on the digital terrain map and morphologic map. Within solution of this thesis was created signal coverage model of digital transmitters in entire area of Czech Republic, so called networks no.1-4, according to its status in spring 2008. Next is focused on government order about convert from analog to digital video broadcasting terrestrial.
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Network planning for digital terrestrial television and radio broadcasting
Dostal, Radek ; Ulovec,, Karel (referee) ; Kratochvíl, Tomáš (advisor)
Master’s thesis is focused on SFN (Single Frequency Network) and MFN (Multi Frequency Network) networks design in digital television broadcasting based on DVB-T standard and digital radio broadcasting based on T-DAB standard. First part of the thesis is focused on the theoretical description of the MPEG-2 TS transmission, its propagation from transmitter across free space, to be decoded in the DVB-T receiver. In the second, practical part of the thesis, basic parameters of a software package for broadcast network design in RadioLab, RadioBase and Sítě SFN are introduced and the results are displayed on the digital terrain map and morphologic map. Within solution of this thesis was created signal coverage model of DVB-T digital transmitters in entire area of the Czech Republic, so called networks no. 1-4, according to its status in spring 2010, and its future expansion, which is known from TPP (Technical Plan of Conversion) document. At the conclusion of thesis there were made experiments with the modeling of transmitters’ radiated power, guard interval selection and location of DVB-T transmitters in the SFN network.
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Simulation of the Transmission Channels for the Digital Television DVB-T/H
Kučera, Jan ; Ulovec,, Karel (referee) ; Kratochvíl, Tomáš (advisor)
This thesis focuses on analysis, classification, simulation and assessment of the signal fading in the scope of terrestrial digital television reception. This is a phenomenon associated with signal multipath propagation caused by the reflection, dispersion and diffraction of electromagnetic waves in interaction with relief and artificial obstacles. Wave propagation issues in a specific landscape are not the central theme of this project. Signal transmission between the transmitter and receiver is defined by channel profile models. Attention is directed not only to static reception but also to portable and mobile reception. Simulation of this phenomenon takes place in the software environment of MATLAB. In the framework of this project program fundament was created which allows simulate the signal processing across the entire communication chain of television broadcasting, including its transmitting and receiving parts.
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Program for design of CATV
Sedláček, Jan ; Hála, Ondřej (referee) ; Říčný, Václav (advisor)
The main task of this master’s thesis is to create an interactive computer programme for the design of small and medium television cable circuits. The first part of this document describes main conceptions of a modification and a distribution of television signals. There are also introduced basic topologies of small and medium sized distribution networks, some passive and active elements in the circuit including their usage. There is also described an algorithm for calculation of circuit’s values. The second part contains a detailed description of created programme with all of its functions. A part of this document is made by a sample calculation of the four variants of circuit and its comparison with computer calculation. In suplement are included selected parts of source code.
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RF channel simulation in the MATLAB environment
Daďa, Petr ; Kratochvíl, Tomáš (referee) ; Štukavec, Radim (advisor)
Subject of this thesis is elemental description of DVB digital television and digitalization process of its terrestrial transmission according to DVB-T standard. The thesis characterizes in detail RF transmission channels used for wireless distribute of television. These channels ale mathematically described and their effect to OFDM signal is simulated in the MATLAB environment. It was created application with graphical user interface by this environment. Using simple setting of DVB-T and transmission channel parameters in the application user can simulate selective fading. Results of simulations with various settings are compared and analysed.
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Realization of OFDM coder for DVB-T system
Zelinka, Petr ; Maršálek, Roman (referee) ; Frýza, Tomáš (advisor)
The contents of this thesis is a delineation of the European Standard ETSI EN 300 744 for terrestrial digital video broadcasting (DVB-T) and a description of created OFDM coder and decoder for baseband signal transmission in 2K mode without error correction capabilities. The proper function of both devices is verified by means of Matlab simulations and practically implemented into Texas Instruments’ digital signal processor TMS320C6711 using Starter Kits.
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Methods for image enhancement in interactive applications of digital telecasting
Švanda, Vít ; Vlach, Jan (referee) ; Číka, Petr (advisor)
In this dissertation we deal with methods of minimizing block artefacts in digital terrestrial TV broadcasting. These artefacts are caused by compressions based on the cosine transformation (JPEG, MPEG2 I-Frames). The aim of this work is therefore to create a DVB-J application the main function of which would be to minimize block artefacts in natural images transmitted by DVB-T. That is why we first inquire into the technology of DVB digital transmission and MHP platform which provides the function and the running of interactive applications. Next, we define differences between Java and JavaTV languages and describe the way they develop, simulate and start DVB-J applications. In the following part of this work, we analyze methods that can be used to detect and minimize block artefacts. Further on, we describe the design of an adaptive filter which minimizes block artefacts (hereinafter just ´MHP-MBA´). The major result of the entire work is an MHP-Deblocking application that in itself implements a newly created MHP-MBA deblocking filter as well as a filter from video kodek H.263. In the final part we concern ourselves with testing this application on a genuine set-top-box in DVB-T broadcasting.
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IPTV use in academic network
Jireš, Kamil ; Pavlíček, Luboš (advisor) ; Beneš, Jiří (referee)
The purpose of this diploma thesis is to provide readers the deployment of IPTV solutions using free software. In this thesis the reader will familiarize with the theory of IPTV, which implies a necessary part of the system, IPTV related protocols and possible errors that can be when running the IPTV service. The work is divided into four parts. The first part discusses the theory. In theory, the reader familiarize with the definition of basic concepts, which are essential elements of the system, the protocols used in conjunction with IPTV and will also be discussed errors that may occur during operation of IPTV services. The second section outlines the architecture of which the reader can find a solution that was implemented in an experimental operation. The third section focuses on the choice of components (hardware and software) that were used in the test sytem. The variants are mentioned, from which the components were selected. The fourth section contains the actual implementation, which describes each components. At the end of the fourth part is inserted configuration files that can be used in case of repeated implementation of the solution.
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