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Technical infrastructure in cities
Hladůvková, Blanka ; Hluštík, Petr (referee) ; Vrána, Jakub (advisor)
This bachelor's thesis consists of three parts: Theory, calculation and project. Theory deals with possibilities of laying utilities into the ground, collectors, technical corridors, technical cannals, basement manifolds and to the overhead lines. Furthermore, the issue of coordination between utilities and greenery both in the Czech Republic and abroad is also addresed. The calculation part includes water demand, rainwater quantity and waste water balance calculations. Project contains the accompanying report, technical report and drawings. It focuses on the Jircháře street located in Staré Brno, where a new apartment building has already been built, for which new relocation of utilities from Jircháře street to Kopečná street had to be made.
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Testing of the LTE basic parameters
Hocz, Jan ; Miloš, Jiří (referee) ; Hanus, Stanislav (advisor)
This thesis deals with brief introduction to LTE system and processing of signal in uplink and downlink. There is also presented some basic parameters that must be met for correctly working equipment in system. These parameters are divided for transmitter and receiver. From these parameters were chosen those, which can be measured in school labs with available measurement devices. For measuring these parameters were created instructions. For easier record of measured data was prepared protocol with blank tables.
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Channel Merging Techniques for improving Dynamic Range of ± 10 V Signal Chain Channel
Dušek, Samuel ; Prokop, Roman (referee) ; Kledrowetz, Vilém (advisor)
Cílem této diplomové práce je změřit a vyhodnotit parametry techniky slučování kanálů, která je momentálně implementována v součástce AD7606C firmy Analog Devices. Poté, na základě výsledků z měření, navrhnout a odsimulovat několik možností, pomocí kterých by tato technika mohla dosahovat vyšších hodnot dynamického rozsahu a celkového harmonického zkreslení. V průběhů práce bylo zjištěno, že pomocí zvýšení zesílení kanálu s nižším rozsahem společně se snížením mezní frekvence celého signálového řetězce může tato technika dosahovat až 118.6 dB dynamického rozsahu, což je o 3.6 dB více, než bylo změřeno na AD7606C. Dále také bylo zjištěno, že pomocí jednoduchého algoritmu implementovaného v logickém bloku, je možné dosáhnout imunity vůči hodnotě externího rezistoru, který zákazníci používají jako součást anti-aliasingového filtru.
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Utilization of deep learning for channel estimation in OFDM systems
Hubík, Daniel ; Staněk, Miroslav (referee) ; Miloš, Jiří (advisor)
This paper describes a wireless communication model based on IEEE 802.11n. Typical methods for channel equalisation and estimation are described, such as the least squares method and the minimum mean square error method. Equalization based on deep learning was used as well. Coded and uncoded bit error rate was used as a performance identifier. Experiments with topology of the neural network has been performed. Programming languages such as MATLAB and Python were used in this work.
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Possibilities of karstification of calcareous sandstones in the Jizera segment of the Bohemian Cretaceous Basin and evolution of conduits in the thick-bedded sandstones
Vojtíšek, Jan ; Bruthans, Jiří (advisor) ; Vysoká, Helena (referee)
Features typical for karst, such as fast groundwater flow and existence of open conduits were observed in various parts of Bohemian Cretaceous Basin (BCB). So far, vertical and areal extent of karst rocks is not known. In case of concerning conduits in quartz sandstones the observation of their evolution in profiles perpendicular to flow is missing. The thesis deals with above mentioned issues. Concerning potential to karstification it is limited to Jizera facial area of BCB. For this purpose, leaching of samples in hydrochloric acid were carried out. The hydrochloric acid was used as an accelerated simulation of natural processes of dissolution of rock by acidic solutions. The reaction of samples on leaching in acid, disintegration and content of the CaCO3 component were evaluated. CaCO3 content was determined also by calcimetry. Rocks which disintegrated can be a suitable for the evolution of karst conduits. According to the lithostratigraphic sections, the examined profiles belong to the TUR5 and TUR6 units - thus these units contain rocks suitable for the evolution of karst conduits. In Předměřice site about 23 % of samples disintegrated, in Kosmonosy site 8 % and in Turnov site 36 % disintegrated. Thus about 1/10 to 1/3 of tested profiles is prone to karstification and evolution of karst...
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Hardware MISO Emulator for Fading Channels
Rez, Jan ; Pítra,, Kamil (referee) ; Šebesta, Jiří (advisor)
This thesis is devoted to study the possibility of solving a hardware MISO emulator for fading channels and design of experimental device. The theoretical part starts with the theory of propagation of electromagnetic waves in a different types of environment, follows the principles and phenomena describing the radiocommunication channels and gradually gets up to specific channel models used for planning radio links. The actual design study of emulator is based on theoretical knowledge mentioned in this thesis. The basic principle of each channel model and thus so the emulator for fading channels is Tapped Delay Line model. From the point of view of the peripheral emulator solutions are designed with two topology circuits, parallel and serial-parallel. Emulator control method, mechanical arrangement, selection of topology circuit, components selection, desing of the PCB and software design is also analyzed. The results of this thesis is prototype production of experimental device and final discussion about achieved requirements and tasks.
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The importance of the Rhine-Main-Danube Canal for Central European logistics area
Kapustová, Alena ; Sato, Alexej (advisor) ; Hinčica, Vít (referee)
This bachelor thesis executes an utilization and importance of the Rhine-Mohan-Danube Canal as a major waterway in Europe. One of the main goals, with using the available information, is to confirm or disconfirm, on the basis of the hypothesis, whether the Rhine-Main-Danube can meet the requirements, for that was originally built. The introduction of the main text introduces inland waterway transport and evaluates its effectiveness. Later is presented the Rhine-Main-Danube canal and analysis of its transport efficiency. Based on these data, it is possible to clarify the importance of the Rhine-Main-Danube Canal for countries in its availability. Individual parts of this waterway are providing information about the versatile use of watercourses. At the end of the main part are summarized the main advantages and disadvantages associated with using of the Rhine-Main-Danube Canal.
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A method of programming the TV channel ČT1 in connection with its focus groups
Kindlová, Pavlína ; Štoll, Martin (advisor) ; Lokšík, Martin (referee)
This thesis deals with programming of the TV channel ČT1 in connection with its audience. The first part of this thesis is a theoretical explanation of the television programming. It clarifies reasons and methods of the channel structure, then it introduces the research of viewer ratings. It concerns the techniques of the television programming whose goal is to gain sufficient ratings of the stated programme. However, it also determines the Czech Television as a public broadcaster with respect to the Czech law. It tries to explain how this fact affects programming of the Czech Television's channels. The second part of this thesis consists of practical research of programme ČT1. It analyses four weeks in 2015, it clarifies their main features. It takes knowledge from three interviews with the key operatives who are responsible for the programming at the Czech Television. It also devotes to the fact how the target audience forms placing of programmes sociologically. It is known that the association of human life with television broadcasting is necessary and strong. Besides, it identifies the channel ČT1 as it is, it compares its target audience with other channels of Czech television. A significant part of the thesis is dedicated to its prime time and the comparison with competitive channels....
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J2ME/J2SE Network Communication
Přerovský, Petr ; Herout, Adam (referee) ; Láník, Aleš (advisor)
The first part of this bachelor study is engaged in description of platform Java Micro Edition with the goal to punctuate its main features. The second part presents the possibilities of implementation of networking communication in surroundings of mobile phones and networking posibilities of platform Java 2 Standart Edition with target the multiplex and non-blocking server. The third part is focused on project and implementation of exemplary application with tests of resulting solutions together.
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The quality of assembly in data transmission
Šalplachta, Milan ; Křepelka, Václav (referee) ; Filka, Miloslav (advisor)
The content of this work is theoretical and practical an analysis of transmission characteristics of structured cabling and related effect of assembling, which directly affects the characteristics of channel. Individual treshold limits of channel parametres, as technological methods of montages are outgoing from corresponding european specifications.
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