National Repository of Grey Literature 30 records found  1 - 10nextend  jump to record: Search took 0.00 seconds. 
Design of basic analogue building blocks with fractional-order transfer
Theumer, Radek ; Staněk, Miroslav (referee) ; Langhammer, Lukáš (advisor)
This diploma thesis is focused on design of the analogue circuit structures with integer-order and fractional-order transfer. The ways in which fractional-order transfer functions can be achieved are mentioned in the introduction. Two basic building blocks with the ability to control its transfer function order and frequency, such as integrator and differentiator respectively, were designed. A non-traditional active element was used in proposed analogue building blocks. In addition, the inner structure of this active element has been improved to provide the ability to control another suitable parameters. Aplication of the proposed fractional-order integrators is presented by employing into the frequency filter. Simulations are performed with help of transistor-level models of two different technologies: CMOS TSMC 0,18 um in the OrCAD Pspice software and I3T25 in the CADENCE Virtuoso software too. All proposed circuit structures are realized on the printed circuit board (PCB) and then measured experimentally. The last part is focused on comparative measurements of the filters with fractional-order integrator proposed by another author.
LoRa-based indoor localization
Šimka, Marek ; Staněk, Miroslav (referee) ; Polák, Ladislav (advisor)
This diploma thesis focuses on possible utilization of LoRa (Long Range) technology for indoor localization purposes. In this thesis, the starter kit SK-iM282A is used to create a LoRa-based wireless link in the 2.4 GHz ISM band. Main attention is focused on the experimental localization using the RSSI method in the various transmission environments, including a description of the localization principle, the procedure of processing the measured data and the evaluation of localized coordinates. The rightness of the proposed measurement setup and methodology is verified by extensive measurements in various environments and compared with state-of-the-art article.
A Framework for generating Traffic in IoT Networks
Švehla, Ľubomír ; Staněk, Miroslav (referee) ; Polák, Ladislav (advisor)
The point of this master's thesis is to design a framework capable of receiving and processing and also generating and sending packets of BLE, Z-Wave and IQRF technologies. In addition to designing the software itself, it also deals with choosing suitable hardware. Selected hardware is SDR device HackRF~One. The software solution is implemented in C ++ and counts on the use of third-party tools.
Coexistence of LTE and LoRa in the 2.4 GHz ISM band
Potočňak, Martin ; Staněk, Miroslav (referee) ; Polák, Ladislav (advisor)
This diploma thesis deals with the study and measurement of coexistence scenarios that can occur between the LTE and LoRa systems in the unlicensed ISM band 2.4 GHz. A common radio frequency band in which LTE and LoRa systems can coexist is defined. An appropriate laboratory measurement is proposed and realized, allowing automatized measurement of the defined coexistence scenarios. For this purpose, a personal computer, professional measurement equipment and software MATLAB are utilized. Functionality of the proposed concept is verified by extensive measurements. The obtained results are graphically shown and discussed in detail.
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.
The Philosophical Reflection of the ICT Influence in the Pedagogical Field with Special Focus on the Digital Dementia Phenomenon
STANĚK, Miroslav
This thesis deals with philosophical questions, related to modern-day technologies and their impact on the future generations education. It specifically focuses on the paradigmatic transformation of everyday empirical experience (of the world) among people who were born into the digital age. They are called "digital natives", and they feel comfortable in the cyberspace´s infosphere. In terms of the philosophy of education, the "digital dementia" is understood as a principal inability and unwillingness to get out of personalised "bubble universe". The goal of education is (in this thesis) understood as a skill how to perform a personal turn-around and how to actively participate their own "philosophy of life", that means to seek for the meaning of the life and live autonomous and authentic lives.
Analysis of glottal pulses
Příkazský, David ; Staněk, Miroslav (referee) ; Sigmund, Milan (advisor)
The work is about the estimation of vocal pulses from the speech record. Contains a description of the process of speech production, description of the instruments for the measurement of vocal pulses, an overview of software tools for estimating vocal pulses from the speech signal. Description of IAIF and Sahoo method for estimating vocal pulses. The Graphic User Interface in MATLAB is created for easier control of mentioned methods.
Model of physical layer of communication system IEEE 802.11ah
Jurák, Petr ; Staněk, Miroslav (referee) ; Polák, Ladislav (advisor)
This diploma thesis deals with the analysis of the IEEE 802.11ah wireless communication system. For such a purpose, an appropriate simulation model in program environment MATLAB is created. The first part of thesis focuses on the IEEE 802.11 standard. Basic blocks of the transmitter and receiver are described. Attention is also devoted on the brief description of considered transmission channels. The second part contains the description of the proposed and realized simulation model in MATLAB. Individual blocks of the simulation model are described in details. Finally, the obtained simulation results are evaluated and discussed.
Analysis and comparison of ROC curves of audio signals
Pospíšil, Lukáš ; Staněk, Miroslav (referee) ; Poměnková, Jitka (advisor)
This thesis deals with oportunity of ROC curve usage in the description of methods that work with sound signals. Specifically, it focuses on ways of detecting of stress in speech signals. The detection itselfs is done in a range of frequencies of the sound signal. There is also a classifier designed using ROC curves that decides whether the input signal is stressed or not. The output of this thesis are findings gathered from analyses and also some recommendation based on those analyses.

National Repository of Grey Literature : 30 records found   1 - 10nextend  jump to record:
See also: similar author names
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18 STANĚK, Michal
3 STANĚK, Milan
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1 Staněk, Matouš
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18 Staněk, Michal
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