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Neural networks in speaker classification
Svoboda, Libor ; Atassi, Hicham (referee) ; Míča, Ivan (advisor)
The content of this work is focused on the neural network per speaker recognition. The work deals with problems of processing speech signal and there are introduction some types of neural network. The part of work was made database of records from speakers with have various sex and ages. The train and test group was made from the database. For classifier were suggested afterwards. One of them was nominated on base Gaussian mixture model and three of them were nominated on neural. This system was tested and analyzed on the basis of age, gender and both criterions each other at the end. Attention is focused on choice suitable feature in each mission of classification at the same time. At the end of work are introduced results of analysis for individual groups and features. The most suitable features are diagnosed from given mission of classification and the most prosperous classifier.
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Low Noise amplifier for 8,4 GHz
Svoboda, Libor ; Vágner, Petr (referee) ; Kasal, Miroslav (advisor)
This project deals with methods of design and realization of low noise microwave amplifier for X-band. The first part describes this issue at a theoretical level. Thus it contains a detailed analysis of microstrip line and its circuit components. It is followed by some specifics of microstrip filters and with mention of microwave heterojunction transistors. The last chapter of the theoretical part describes design of small-signal amplifier with focus on low noise figure. The second part, practical, shows a concrete procedure of two-stage LNA design with HEMTs, using CAD tool Ansoft Designer. This section, as well as the bachelor’s thesis, is finished with realization of amplifier and analysis of its properties.
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Conveying machines for transport of piece goods
Barcuch, Libor ; Svoboda, Libor (referee) ; Malášek, Jiří (advisor)
This master’s thesis is dealing with the conveying machines used for transport of piece goods. The thesis is divided into theoretical and practical part. In the first part is performed overview of the most widely used conveyors. Second part of this thesis is focused on creating design of conveyor system for distribution centre with required line throughput.
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Human rights movement in Czechoslovakia and in Ukraine in the end of 1970s
Mokryk, Radomyr ; Vojtěchovský, Ondřej (advisor) ; Svoboda, Libor (referee)
This thesis deals with the topic of the human rights movement in Ukraine and Czechoslovakia after signing the final act of the conference on security and cooperation in Europe in Helsinki 1975. The thesis is an attempt of a comparative analysis of these two human rights movements in the late 1970s, based on two concrete groups: Ukrainian Helsinki Group and Committee for the Defense of the Unjustly Prosecuted. The research focuses on the comparison of the social context for the dissent activity, the historical circumstances and the activities of the human rights groups. The thesis traces the main tendencies and topics in the activities of both groups. Particular attention is paid to the life stories of the actors of human rights movement and efforts to explore some common features in biographies of these personalities. Key words: Human rights; Helsinki movement; dissent; opposition; Soviet Union; Normalization; Czechoslovakia
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Provocative actions carried out as part of the action Skaut by the State Security (StB) against the illegal groups of the so called Third Resistance movement. Provocation as a system of StB operative work shown on the example of the group "Za svobodu" existing between the yers 1948 - 1951
Svoboda, Petr ; Hnilica, Jiří (advisor) ; Kalous, Jan (referee) ; Svoboda, Libor (referee)
"Za svobodu" "For freedom" - Czechoslovak coup d'état in 1948 "Za svobodu" "akce Skaut" ("operation Scout") which is considered to be the largest provocatio ("maj. Král" Maj. Král "illegal" associate Josef Damián (agent of the State Security) also managed to infiltrate the group of Josef Vlasatý, which later "cpt. Hrdý". Josef Vlasatý, a former Josef Vlasatý had - Vysočany. Karel Strmiska formed his own subgroup composed of active of them were members of the "old" police gendarmery of the so called "first republic". With the help of inand Třebícký, a former head of the police forces, Josef Vlasatý established contacts - - ý since the summer of of the "central bureau of the resistance movement" cooperating with the exile. In 1950 the tate Security gained Josef Vlasatý's trust and documentation of the group's activities, although written by the State Security agents, is thus people were convicted in connection with Josef Vlasatý's group, whic one of the largest political processes of 1950's. The accompanying case study deals with the " Kühnel", examines in detail the case of Josef Kühnel, the head organization secretary of the Socialist of Josef Kühnel carried out by officers of the State Security. They used him as a crossing within a provocative plan called "false frontier stone". Both case stu 's. agent,...
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Political Trial with "Leaders of illegal anti-state Group KDS" in 1955 and related Trials
Tilsch, Jan ; Míšková, Alena (advisor) ; Pehr, Michal (referee) ; Svoboda, Libor (referee)
Main Content of this Work is to describe in detail Part of political Trials in Czechoslovakia during the first Part of 1950's, focused against political Opponents coming from Czechoslovak People's Party (ČSL) or Roman Catholic. The Topic - political Trial with "Leaders of illegal anti-state Group Christian-Democratic Party (KDS)" in 1955 and related Trials - is almost unprocessed. The Goal of this Work is to sketch long-lasting "crusade", managed by the communist Power, against "virtual political Entity KDS". This "crusade" should culminate by public political Trial with Leaders of KDS. I'd like to focus on Secret state Police (StB) and its searching of Leaders of KDS, showing the Mechanism of anti-state Groups' Construction too. During the final Part I'd like to show continuance of struggle against other Groups of KDS after the Year 1955 until 1960's and introduce real activities of KDS' Leaders.
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Conveying machines for transport of piece goods
Barcuch, Libor ; Svoboda, Libor (referee) ; Malášek, Jiří (advisor)
This master’s thesis is dealing with the conveying machines used for transport of piece goods. The thesis is divided into theoretical and practical part. In the first part is performed overview of the most widely used conveyors. Second part of this thesis is focused on creating design of conveyor system for distribution centre with required line throughput.
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