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Platform for Digital Predistortion Based on RFSoC
Kříčka, Tomáš ; Král, Jan
Signal predistortion occurs in modern communication systems and in other systems requiring linear signal amplification. The objective is to learn about signal predistortion, the QORVO 1800 MHz FDD radio front-end and to implement the front-end control using RFSoC and Matlab computer program. I focus on controlling individual attenuators and amplifiers on the QORVO front-end with a program written in C. Using a single board computer Raspberry Pi 4B running Linux. Furthermore, the work involves the application of a SCPI server that operates based on TCP packets. As part of the introduction to the front-end, the power characteristic of the power amplifier is measured.
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Attendance terminal
Antoš, Jan ; Petyovský, Petr (referee) ; Macho, Tomáš (advisor)
This master thesis aims to get acquainted with the issue of terminals and to list the parameters of attendance terminals available on the market. To define the customer requirements for the operation of the attendance terminal with touch screen and RFID reader. Specify the communication of the terminal with the parent server. Design the concept of the attendance terminal, select the appropriate components for the implementation of the terminal and draw the block diagram. Design the structural layout of the terminal. Implement the terminal, revive it and then debug the necessary software.
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A Hardware Platform for a Promotional Robotic Vehicle
Koláčný, Michal ; Burian, František (referee) ; Jirgl, Miroslav (advisor)
This thesis serves as a feasibility test for the construction of a robotic vehicle, where its autonomous movement will be provided by a camera and QR code scanning, for the company B:TECH. Specifically, it deals with the interaction of the hardware platform of the robotic vehicle together with selected electrical components. It describes the design of the structure printed on a 3D printer and its electrical and mechanical components enabling movement. Furthermore, the work focuses on the selection of suitable electrical components related to the safety of operation in the form of sensors. A necessary part is also the control and coordination of the movement of the vehicle using control microcontrollers. Specific components and equipment are described in the following chapters. The result of the thesis is the creation of a hardware concept of an autonomous robotic vehicle.
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Platform for Digital Predistortion Based on RFSoC
Kříčka, Tomáš ; Maňas, Ondřej (referee) ; Král, Jan (advisor)
Signal predistortion occurs in modern communication systems and in other systems requiring linear signal amplification. The objective is to learn about signal predistortion, the QORVO 1800 MHz FDD radio front-end and to implement the front-end control using Matlab computer program. I focus on controlling individual attenuators and amplifiers on the QORVO front-end with a program written in C. Using a single board computer Raspberry Pi 4B running Linux. Furthermore, the work involves the application of a SCPI server that operates based on TCP packets. As part of the introduction to the front-end, the power characteristic of the power amplifier is measured.
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Virus eradication method by cryopreservation tool - a cryoknife
Bilavčík, A. ; Bobrova, O. ; Faltus, M. ; Fránová, Jana ; Hammond, S. ; Koloniuk, Igor ; Zámečník, J.
Currently, in the nursery production of plant material, emphasis is placed on the propagation of healthy material. For this reason, it is necessary to pay attention to the topic of healthy virus-free nuclear stock when preserving collections of genetic resources of vegetatively propagated plants. Some raspberry viruses are difficult to remove from the plant host by existing methods of thermotherapy or chemotherapy. That is why, using the example of black raspberry necrosis virus (BRNV), a comprehensive methodology for testing health status and cryotherapy in raspberry was developed. The resulting methodical procedure makes it possible to eradicate BRNV from raspberry using cryotherapy of in vitro cultures. The user of the methodology is the Ministry of Agriculture, which applies it as part of the 'National Program for the Conservation and Use of Genetic Resources of Plants, Animals and Microorganisms Important for Nutrition and Agriculture'.
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Determination of athenticity of plant foods by molecular techniques
Plášková, Anna ; Mikulíková, Renata (referee) ; Němcová, Andrea (advisor)
The aim of presented diploma thesis was to determination of authenticity of fruit baby foods for early infant feeding using molecular methods. In the experimental part, isolation kit was used for isolation of plant DNA from fruits (strawberry, apricot, raspberry, apple) and from six commercial fruit products for children. Isolated DNA was characterized and verified using PCR methods with primers specific for plant rDNA (ITS2). Specific primer pairs were designed to amplify DNA for the detection of one fruit species. Primer specificity was assessed with four fruit species. A mixture of fruit puree from the two fruits was used to determine the sensitivity of the multiplex PCR assay. Six commercial fruit products were evaluated to verify the applicability of the multiplex PCR assay. The methodology of molecular detection of fruit DNA by qPCR and multiplex qPCR (duplex) includes approaches, which enable to detect two fruits (strawberry-raspberry, apricot-apple) in one reaction and thus reduces time and money requirements.
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Business Plan for Raspberry Paradise
Dudová, Nikola ; Zich, Robert (referee) ; Šimberová, Iveta (advisor)
This diploma thesis is worked out as a proposal for a business plan for establishing a small company in the area of agriculture primary production. The worked out business plan is based on analysis of the environment for the new company and from primary research. Theoretical part of the thesis deals with basic concepts which are related to business activities in the current condition. The proposition part consists of a proposal itself for the new business plan and the perspectives of implementing the plan and also risk that come with it.
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Flight Characteristics Control System for Autonomous Drone
Červenka, Ondřej ; Strnadel, Josef (referee) ; Šimek, Václav (advisor)
The goal of the bachelor thesis is to build a drone and implementation of safety measures in case of RC signal loss and also stabilizing the drone in the air using GPS and other available sensors. The thesis describes on history and development of the drones, their construction, components and parts of which it consists. Practical aspect focuses on building the drone, implementation of code for autonomous behaviour and testing of the final product.
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Smart garden
Dvořák, Jakub ; Kaczmarczyk, Václav (referee) ; Štohl, Radek (advisor)
The main objective of this work is created using Raspberry Pi intelligent garden. The first part is devoted to the concept of intelligent building. The second part describes the used hardware components. Another section is devoted SW Raspberry microcomputer and microcontroller Arduino. The last chapter describes the implemented model of a intelligent garden.
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Changes in selected local fruits during freezing.
Matějková, Markéta ; Melounová, Jitka (referee) ; Márová, Ivana (advisor)
This diploma thesis was focused on study of low-molecular antioxidants present in various kinds of fruits, namely berries. In theoretical part detailed characterization of antioxidants studied in presented work and their biological effects are introduced. Further, principals of processing and storage of specified species of fruits are discussed. Changes observed during storage of specific fruits are described too. In practical part changes in content of selected antioxidants in berries were followed. As studied material strawberries, raspberries, blueberries, red and black currants were used. All kind of these fruits was stored in fridge for six months using several different kind of processing. Berries were stored as whole fruits, whole osmotically processed fruits by sucrose, raw pulp and sweetened pulp. At first, starting values of selected antioxidant parameters were measured in fresh fruits (ascorbate, total antioxidant activity, total phenolics, catechins and individual flavonoids). After freezing the same parameters were measured regularly in two month periods. As the most suitable method of fruit processing, with regard to antioxidant content, storage of the whole fruits or pulp can be recommended. Content of ascorbate decreased in all forms and species of the processed fruits during all the time of storage. Oppositely, the content of other studied antioxidants exhibited fluctuations or increasing trend. Sensory analysis was proved for the whole fruits and also for whole sweetened fruits.
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