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Quality measurement of analog and digital terrestrial television broadcasting
Zach, Ondřej ; Polák, Ladislav (referee) ; Slanina, Martin (advisor)
This bachelor‘s thesis deals with the description of basic features of the analog and digital television broadcasting and suggestion of a method for objective video quality evaluation at both broadcasting types. The base of this thesis is description of picture broadcast technology in analog and digital form. Also principles of some video quality evaluation metrics are described. In this thesis, a method for video quality comparison is suggested, including a verifying of this method. According to this method, sequences at changing broadcasting conditions were recorded for both broadcasting types. The quality factors of these sequences were computed and on the basis of these factors, the analog and digital TV broadcasting were compared.
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DVB-MHP Interactive Application
Kasal, Petr ; Burget, Radim (referee) ; Číka, Petr (advisor)
This Master Thesis is engaged in Interactive TV standard. In the first chapter a general digital TV question and it's benefits are adumbrated. Next chapter deals with Interactivity for digital TV itself. More on possibilities of data security and protection during the transmission throught the reversal channel are discussed. The main part of the Thesis deals with developing an application enabling to obtain a statistical data from televiewers throught a set-top box connected to the Internet. The application is conceived as an universal enquiry, that obtains it's data via a reversal channel and is able to present the gained data in an attractive way. Java and PHP programming languages were applied to create the application and MySQL database with easy edit system is used to store the needed data. Specially designed security libraries based on XTEA cipher are used to enable protected communication.
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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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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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MHP application
Holík, Tomáš ; Říha, Kamil (referee) ; Číka, Petr (advisor)
This Master Thesis is engaged in designing an interactive application for online betting in the DVB-T environment. The application is determined to running at Multimedia Home Plattform MHP and it allowes digital television viewers to make a bet on a sport match broadcasted on the television. The whole application is written in the Java language. All the information about users and the match are stored in a MySQL database, which is accessible through a php script placed on the server with the database. The applicaton is running in a set-top box and communicates with the script through the set-top box return channel. The channel between the server and the script is unsecure, so the communication has to be encrypted. The encryption process uses a symmetric-key cipher AES, which uses a shared secret key for encryption and decryption. Each application generates its own pseuodorandom and crypthographicaly strong AES key and sends it to the server. To secure the secret key transsmision is used the public-key cipher RSA.
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Quality measurement of analog and digital terrestrial television broadcasting
Zach, Ondřej ; Polák, Ladislav (referee) ; Slanina, Martin (advisor)
This bachelor‘s thesis deals with the description of basic features of the analog and digital television broadcasting and suggestion of a method for objective video quality evaluation at both broadcasting types. The base of this thesis is description of picture broadcast technology in analog and digital form. Also principles of some video quality evaluation metrics are described. In this thesis, a method for video quality comparison is suggested, including a verifying of this method. According to this method, sequences at changing broadcasting conditions were recorded for both broadcasting types. The quality factors of these sequences were computed and on the basis of these factors, the analog and digital TV broadcasting were compared.
|
|
|
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.
|
|
|
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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DVB-MHP Interactive Application
Kasal, Petr ; Burget, Radim (referee) ; Číka, Petr (advisor)
This Master Thesis is engaged in Interactive TV standard. In the first chapter a general digital TV question and it's benefits are adumbrated. Next chapter deals with Interactivity for digital TV itself. More on possibilities of data security and protection during the transmission throught the reversal channel are discussed. The main part of the Thesis deals with developing an application enabling to obtain a statistical data from televiewers throught a set-top box connected to the Internet. The application is conceived as an universal enquiry, that obtains it's data via a reversal channel and is able to present the gained data in an attractive way. Java and PHP programming languages were applied to create the application and MySQL database with easy edit system is used to store the needed data. Specially designed security libraries based on XTEA cipher are used to enable protected communication.
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