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Tulu Ph.D. nõuab laiendatud uuring ja tugev vaimset pingutust. PhD on akadeemiline uuring, mida te keskenduda 4-6 aastat pärast saada oma magistrikraadi ning mis viib, kui edukas, et doktorikraadi kõrgeima akadeemilise kraadi.

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PhD in Electrical Engineering and Communication

Brno University of Technology
ülikoolis 4 aastat September 2017 Tšehhi Brno

The doctor study programme provides the specialised university education to the graduates of the previous master study in electronics and communication technologies. [+]

. Electrical Engineering and Communication Electronics and Communication branch Abbreviation: PPA-EST Length of Study: 4 years Programme: Electrical Engineering and Communication Faculty: Faculty of Electrical Engineering and Communication Academic year: 2017/2018 Accredited from: 25.7.2007 Accredited until: 31.12.2020 Profile of the branch: The doctor study programme provides the specialised university education to the graduates of the previous master study in electronics and communication technologies. The students are educated in various branches of theoretical and applied electronics and communication techniques. The students make deeper their theoretical knowledge of higher mathematics and physics, and they earn also knowledge of applied informatics and computer techniques. They get ability to produce scientific works. Key learning outcomes: The doctors are able to solve scientific and complex engineering tasks from the area of electronics and communications. Wide fundamentals and deep theoretical basis of the study program bring high adaptability and high qualification of doctors for the most of requirements of their future creative practice in all areas of electronic engineering and communications. The doctors are competent to work as scientists and researchers in many areas of basic research or research and development, as high-specialists in the development, design, construction, and application areas in many institutions, companies, and organisations of the electrical and electronic research, development, and industry as in the areas of communication and data transmission services and systems, inclusively in the special institutions of the state administration. In all of these branches they are able to work also as the leading scientific-, research-, development- or technical-managers. Occupational profiles of graduates with examples: The doctors are able to solve scientific and complex engineering tasks from the area of electronics and communication. Wide fundamentals and deep theoretical basis of the study program bring high adaptability and high qualification of doctors for the most of requirements of their future creative practice in all areas of electronic engineering and communications. The doctors are competent to work as scientists and researchers in many areas of basic research or research and development, as high-specialists in the development, design, construction, and application areas in many institutions, companies, and organizations of the electrical and electronic research, development, and industry as in the areas of communication and data transmission services and systems, inclusively in the special institutions of the state administration. In all of these branches they are able to work also as the leading scientific-, research-, and development- or technical-managers. Branch supervisor: prof. Ing. Aleš Prokeš, Ph.D. Issued topics of Doctoral Study Program: Advanced Diagnostics and Localization of Short-circuit and Micro Short-circuit in Small Motors The aims of the proposed project are to explore opportunity of detection and localization of short-circuit and micro short circuits in winding of small motors. The micro short-circuit causes the electromagnetic interferences which are transmitted to free space or is inducted into the power supply network. In the concept of detection and localization of these failures is good to take into account following approaches: antenna measurement; detection of failures in magnetic field of motor and monitoring the current distribution of tested motor in wide frequency range. Further, there is necessary to classify influence of short-circuits and micro short-circuits in wide frequency range of electromagnetic interference. More over for this type of interference detection could be used the spectral power density of interfering signal. Keep in mind, that such measurements have to be done by normally used measuring devices e.g. low cost spectrum analyser or oscilloscope. Finally, develop and introduce simple methodology for measuring and classification of short-circuit and micro short-circuit influence in small motors. Classification methodology has to be very simple to use and have to provide clear results. The simple methodology for localization of short-circuit position have to be also developed. The precision and resolution of the proposed methodology has to be at minimum for each stage of motor winding. The design and development of simple device for micro short-circuit in small motors has to be part of whole Ph. D. project. Tutor: Dřínovský Jiří, Ing., Ph.D. Advanced EMI Filters Models The project is focused on the analysis of single-phase EMI filters. The analysis has to be focused on the uncertain impedance termination of the EMI filters. The termination has a dominant influence on the filter's insertion loss and also on so call "worst-case" performance. The results will be checked by a lot of measurements and also several mathematical analyses. For these analyses will be designed accurate filter's models. Tutor: Dřínovský Jiří, Ing., Ph.D. An accurate voltage reference for automotive applications This work is focused on finding new principles and optimization of existing circuits used for generation of a reference voltage. The reference voltage generator will be used in automotive applications. Specifics of the automotive applications are wide temperature range (-50 deg C to +200 deg C) and low sensitivity to interfering signals. The desired temperature range requires higher order temperature compensation. Part of this work is a realization of the proposed new voltage reference generator as a test chip and detail measurements of achieved parameters and immunity to disturbances. Tutor: Dřínovský Jiří, Ing., Ph.D. Analysis and modeling of the transmission in the second generation digital television using spatial diversity technique The next generation of terrestrial digital video broadcasting standard (DVB-T2) incorporates the option of using multiple-input single-output (MISO) spatial diversity transmission technique. This dissertation thesis focuses on the exploring and analysis of signal transmission in the second generation terrestrial digital television standard (DVB-T2/T2-Lite) uses spatial diversity transmission techniques MISO and in the future MIMO. A prerequisite of such analysis is a creation of an appropriate simulation model, allows to simulate and analyze the signal transmission which consider multipath propagation with selective fading, and adjustable system parameters of the transmitter and receiver system blocks. A possible verification of theoretical (simulation) results by measurement either in a real environment or in laboratory conditions is also considered. The main aim of this work is the definition of the influence of the system parameters on the bit error rate (BER) and on the quality of the signal transmission. A possible coexistence with mobile services (provided by LTE/LTE-A) in a shared frequency bands can be also considered. Tutor: Polák Ladislav, Ing., Ph.D. Analysis and simulation of the mobile digital television transmission Doctoral thesis is focused on transmission analysis of the digital television in a new DVB-T2 Lite (Digital Video Broadcasting – 2nd Generation Terrestrial) and NGH (Next Generation Handheld) standards. Prerequisite of the successful analysis is design of convenient simulation model of the transmission and digital modulation with optional parameters of each block and verification of the model by realization of experimental measurements. Model of the transmission channel should be designed with the possibility of multipath reception and selective fading simulation. The aim of the work is evaluation of the modulator and transmission channel parameters on achieved bit-error rate and quality of the transmission and mobile services. Tutor: Kratochvíl Tomáš, prof. Ing., Ph.D. Analysis of asymmetric multiprocessing (AMP) The topic is oriented to the domain of asymmetric multiprocessong (AMP) for special tasks/parts of operating systems for different core platforms. Today’s' AMP processors are designed for specific groups of tasks (low interrupt latencies, low peripheral modules latencies, security mechanisms, etc.). The question is how to use the current hardware capabilities in a level of operating systems. The idea is to decompose one instance of the operating system over several processor cores. The goal of the PhD work will be to choose/create several algorithms and data structures for effective cooperation of tasks for AMPs, next the analysis of task executions, and to verify the proposed schema on an opensource system. Tutor: Frýza Tomáš, doc. Ing., Ph.D. Analysis of nonlinear electronic systems using Volterra series theory The aim of the project is to elaborate ways of description of nonlinear electronic systems using Volterra series theory and find effective methods of their solution. In theoretical part, existing methods will critically be evaluated and computationally more efficient procedures searched, including multivariate Laplace transform approach and related numerical techniques. Attention will be focused on use in the analysis of systems with distributed parameters with nonlinearities. In experimental part, dependencies between Volterra series kernels and X-parameters measured by nonlinear vector network analyzer are supposed to be exploited. Potential candidates should have an interest in applied mathematics and programming in MATLAB. Tutor: Brančík Lubomír, prof. Ing., CSc. Analysis of stochastic changes of interconnects parameters The aim of the project is to develop techniques of the analysis of stochastic changes of interconnects parameters in electronic systems on a basis of the theory of stochastic differential equations (SDE). The subject of the research will be devoted partly to the application of ordinary SDEs, useful to describe models with lumped parameters, and partly to the study of the applicability of partial SDEs, useful for continuous models based on the telegraphic equations. It is expected generalization of some proposed techniques towards the analysis of hybrid electronic systems based on stochastic differential-algebraic equations (SDAE). Effectiveness of the proposed methods will be evaluated by comparison with standard statistical approaches such as Monte Carlo method. Potential candidates should have an interest in applied mathematics and programming in MATLAB. Tutor: Brančík Lubomír, prof. Ing., CSc. Application of the principle of free space optical links in transport systems Traffic telematics integrates information and telecommunication technologies with transport engineering by the support of the other related fields to increased transport volumes and transport efficiency and increased safety and comfort of transport in the existing infrastructure. Research will cover the modeling of intelligent transport systems and selection of parts which can be operated on the principle of free space optical links. It will be necessary to design an optical system for monitoring of the meteorological conditions of the atmosphere which can influence the quality of the transport systems. The project also includes the design of optical subsystems applicable in the traffic telematics solutions and the method of communication between particular parts of the system. Tutor: Hudcová Lucie, Ing., Ph.D. Applications of electronically controllable bilinear two-ports for approximation of functional blocks with fractional order character This work deals with synthesis/approximation of network building blocks (integrator, derivator, etc.) of the fractional order circuit by help of chains of subparts employing bilinear transfer sections of the integer order where independent electronic control of the zero and pole location is allowed. This approximation (valid in limited frequency bandwidth) allows to obtain fractional exponent of the Laplace operator s and construction of the so-called “half integrator” (1/s^0.5) for example. The work in this topic is focused to circuit theory but partial results will be verified experimentally with attention to suitable practical applications and applications in smart components of physical layer of communication systems. Tutor: Šotner Roman, Ing., Ph.D. Coexistence between mobile communication networks and digital broadcasting networks in shared frequency bands This dissertation thesis focuses on the definition and exploring of possible coexistence scenarios between wireless communication services (LTE/LTE-A, IEEE 802.11p, IEEE 802.22) and digital video broadcasting services (DVB-T/T2/T2-Lite, mobile NGH). These scenarios can be critical (a partial or full loss of services, provided by considered communication systems), and noncritical (both communication systems can coexist without significant performance degradation). The main aim of this work is to explore different coexistence scenarios of considered wireless communication systems and to develop appropriate simulation models. A possible verification of theoretical (simulation) results by measurement either in a real environment or in laboratory conditions is also considered. Tutor: Polák Ladislav, Ing., Ph.D. Coexistence of the digital broadcasting networks and mobile communications Doctoral thesis is focused on analysis of the critical coexistence scenarios between the services of the digital television (eg. DVB-T/T2, NGH) and wireless services of mobile communications (eg. GSM/UMTS/LTE/ZigBee/BT/WiGig). In case of non-proper frequency selection in the shared frequency bands, these services can disturb each other and consequently critically interfere. Prerequisite of the successful solution is definition of the collision scenarios and recommendations for proper frequency bands selection. The aim of the work is analysis of the coexistence, realization of the simulation models and verification by using of real digital television and mobile communication signals and measurements. Tutor: Kratochvíl Tomáš, prof. Ing., Ph.D. Coexistence of the wireless communication systems in shared ISM frequency bands The fifth-generation (5G) technology is the next step in the evolution of advanced wireless communication systems where wireless equipment can process radio frequency signals, provided by various communication systems, in a shared frequency band. This dissertation thesis focuses on the definition and exploring of possible coexistence scenarios between advanced wireless communication standards (LTE/LTE-A and IEEE 802.11g/n/ac) in shared ISM frequency bands (2.4 GHz and 5 GHz). These scenarios can be critical (a partial or full loss of services, provided by considered communication systems), and noncritical (both communication systems can coexist without significant performance degradation). The main aim of this work is to explore different coexistence scenarios of considered wireless communication systems and to develop appropriate simulation models. A possible verification of theoretical (simulation) results by measurement either in a real environment or in laboratory conditions is also considered. Tutor: Polák Ladislav, Ing., Ph.D. Communication techniques for optical wireless transmission in atmosphere The topic of the proposed dissertation is focused on the use of optical wireless links in fully-photonic design that are designed for high-speed data communication or transmissions of ultrastable signals without any electro-optical conversion. The atmosphere brings to the transmission channel random attenuation and delay, which should be appropriately compensated. The project includes both theoretical and experimental studies of the atmospheric optical channel, modeling of its characteristics, and design and verification of compensatory techniques. A potential candidate should have an interest in experimentation and practical implementation of transmission systems, e.g. on the basis of FPGA. Tutor: Kolka Zdeněk, prof. Dr. Ing. Detection of alcohol by voice analysis Proposed project is oriented to detection of alcohol using signal analysis of phone speech. The aim of this project is development and testing of special algorithms for investigation of alcohol intoxication in low level which is not audible but affect the activity and behaviour of persons. Development of algorithms will be based on robust DSP methods applicable both in real-time analysis and stored signal analysis. In addition, some specific databases under realistic conditions will be created. Tutor: Sigmund Milan, prof. Ing., CSc. Determination of the limits of the quantitative parameters in optical wireless communication The work is focused on the study of atmospheric turbulence, which is an important factor affecting the properties of optical radiation. The work consists of detailed analysis of the turbulent media and describes horizontal and vertical models of the atmosphere. The methodology for quantification of the degree of turbulence considering the needs of optical wireless communication is the next point of the work. The main goal of the work is to determine the maximum achievable transmission rate in the optical wireless links. The dependence of the transmission rate on the degree of atmospheric turbulence and on the wavelength of the optical carrier for the various types of optical beams with respect to the used modulation and coding techniques will be examined. The analysis of bit error rate during the operation of optical wireless link in turbulent atmosphere should be a part of the work. The project is in large part experimental. Tutor: Hudcová Lucie, Ing., Ph.D. Effective data fusion methods for precise personal navigation The subject of this project is focused on research of methods for precise personal navigation based on data fusing of a few independent sources: GNSS receiver, inertial systems (electronic compass, accelerometer, gyroscope etc.). The goal of this work is investigation of effective fusing algorithms (using extended Kalman filtering, neural networks) for precise pedestrian positioning based on characterization of sensors. Results of this research will be used by rescue workers, worker in dangerous plant, indoor navigation etc. Tutor: Šebesta Jiří, doc. Ing., Ph.D. Effective data fusion methods for precise personal navigation The subject of this project is focused on research of methods for precise personal navigation based on data fusing of a few independent sources: GNSS receiver, inertial systems (electronic compass, accelerometer, gyroscope etc.). The goal of this work is investigation of effective fusing algorithms (using extended Kalman filtering, neural networks) for precise pedestrian positioning based on characterization of sensors. Results of this research will be used by rescue workers, worker in dangerous plant, indoor navigation etc. Tutor: Šebesta Jiří, doc. Ing., Ph.D. Electronically configurable transfer structures Presented topic consists in synthesis and design of standard and smart filtering circuits and two-ports generally providing an external (or also autonomous) electronic change of the transfer type and control of particular parameters of the filter manually or in dependence on character and spectral content of processed signal. Single-input and single-output structures (SISO), where change of input or output ports of circuit (typical for common multifunctional types) is not required, are preferred. Electronic reconfiguration of the filter response can be favorable in specific applications where mechanical reconnection of input or/and output of the circuit is undesirable. A utilization of existing active elements or development of new own device(s) is assumed. Tutor: Šotner Roman, Ing., Ph.D. Electronically controllable oscillators of higher and fractional orders Research is focused on modeling, simulations and experimental verification of circuit realizations of higher-order harmonic oscillators and inharmonic generators for structures of physical layer of communication systems working in base and inter-frequency band. The main task is to found features and application possibilities of circuits with higher order than 3 and circuits defined by differential equations of fractional order. An attention will be concentrated on frequency tunability, phase and magnitude relations between generated signals and suitable amplitude stabilization especially. Part of the work deals with detailed description of signal generation based on linear and nonlinear mathematical operations that are allowed by implementation of so-called constant phase elements producing constant phase shift between excitation signal and response. Tutor: Šotner Roman, Ing., Ph.D. Emulators of immittances of higher orders and their applications Synthesis and design of immittances (admittance/impedance) of higher order (Y = k.s^2, k.s^3, etc. for example) and their applications in various advanced controllable electronic circuits is topic of this work. Assumed study of design and application possibilities of circuits with integer-order and fractional-order character is very actual topic. It may be applied in design of smart components of modern communication systems. Validation of proposed methods and structures will be provided by simulations in Matlab, PSpice, or by eventual possibility of development of own structures in Cadence IC6 environment (CMOS technologies AMIS 0.35 um, TSMC 0.18 um). Tutor: Šotner Roman, Ing., Ph.D. Filter-bank modulation formats for 5G communications Filter-bank-based waveforms are candidates to replace OFDM in future generation of mobile communications. One of the most promissing techniques is FBMC. Due to the lack of available spectrum at microwave frequencies, it is also expected that the 5G systems will use millimeter waves with bandwidth of at least 2 GHz. The aim of the thesis is to design an optimal filter-bank waveform suitable for mm-wave communications with possible extension to MIMO scenario and to investigate its sensitivity to RF imperfection of on mm-wave components. Tutor: Maršálek Roman, prof. Ing., Ph.D. Channel models for data communication and localization Recent trends in the utilization of prospective electronic technologies in the automotive industry include among others applications of wireless sensor networks, localization techniques for short distances, data transmission in the vehicle compartment, or car to car and car to infrastructure communication (Car2X technologies). Fruitfulness of such techniques implementation depends among others on both the perfect knowledge of the transmission channel and on the choice of a suitable wireless technology. The UWB (Ultra Wide-Band) in 3 - 11 GHz and 57 - 64 GHz or IR (Infra-Red) technologies are considered to be most promising for such applications. The aim of the project is research into transmission channels properties and creation of the channel models for applications aimed at positioning and data communication in outdoor environment and vehicle interior and design of the communication and localization system concepts ensuring reliable functionality. Tutor: Prokeš Aleš, prof. Ing., Ph.D. Channel models for future generations of mobile networks Steadily growing number of communication devices per area and increasing quality of services require allocation of more frequency resources. Millimeter wave (MMW) frequencies between 30 and 300 GHz are very prospective for next-generation broadband cellular networks. Specific limitations of MMW signal propagation, extremely large bandwidth and time variable environment caused by mobile users connected to a backhaul networks traveling in rugged municipal environments create unprecedented challenges to the development of broadband communication systems using advanced technologies for eliminating the undesirable time varying channel features. The aim of the project is measurement and modelling of the broadband non-stationary MMW channel (between mobile users and backhaul) in time and spatial domain in order to evaluate feasibility of advanced techniques such as beamforming or massive MIMO spatial multiplexing implementation. The main goals of this topic include the effect of multipath components propagation on the time/spatial energy distribution and its statistical evaluation. Tutor: Prokeš Aleš, prof. Ing., Ph.D. Intelligent feeding networks The aim of the project is area of pasive and active circuits, which allow changes to signal transmission in the position of feeding network, for example phasing circuits, tunable filter circuits etc. Proposed structure should be modeled theoretically and verified by realization targeted on perspective bands of centimeter and milimeter waves. Aplication of the circuits should be targeted to inteligent antenna systems, which will allow reconfigurablility during operation. Tutor: Urbanec Tomáš, Ing., Ph.D. Low-profile directional antennas for band of millimeter waves The project is focused on the research of the novel low-profile antenna concepts for the band of millimeter waves. The attention of the project should be concentrated on the development of novel technologies and exploitation of novel materials for antenna design. Further attention should be focused on circuits connected to an antenna. Proposed antenna concepts should find application in directional radio links for selected frequency bands. Tutor: Láčík Jaroslav, doc. Ing., Ph.D. Machine type communication in mobile networks The importance of the so-called Machine Type Communication and Machine to Machine Communication in the area of mobile communication networks has been rising recently. Such type of traffic is characterized by high network capacity requirement, i.e. the possibility to serve a high number of terminals at the same time. The essence of this project is proposal of approaches suitable for increasing the network capacity, e.g. modification of access techniques, scheduling, etc. Verification of the proposed techniques in existing software simulation tools is assumed. Tutor: Slanina Martin, doc. Ing., Ph.D. Methods for precise positioning in wireless sensor networks The subject of this project is focused on research of methods and hardware systems for precise localization of wireless sensors in networks. The goal of the research is analysis of current methods and their optimization with application in millimeter bands (MMID), eventually sub-millimeter bands, using UWB signals. Topic of the project includes an effective cooperation of multi-sensor systems (proper protocols, Kalman filtering). Systems for precise positioning of robotic machines, personal localization in buildings, in-car detection of a driver, or accurate localization of RFID tags are objective applications of this research. Tutor: Šebesta Jiří, doc. Ing., Ph.D. Model of a shared transmission channel for future wireless communication systems Doctoral thesis is focused on analysis of the modern and future wireless communication systems and their coexistence in a shared transmission channel. During the analysis, the systems like digital television broadcasting (eg. DVB-T/T2, NGH), standards for mobile communications (eg. GSM/UMTS/LTE), wireless communication systems (eg. ZigBee, BT, WLAN, WPAN) etc., have to be taken into account. Prerequisite of the successful solution is definition of the statistical model of the transmission channel with variable parameters and then its verification including simulated coexistence with various wireless services. The aim of the work is not only the model of the transmission channel, but also a definition of the forward error correction scheme that is optimized for the verified and shared transmission channel model. Tutor: Kratochvíl Tomáš, prof. Ing., Ph.D. Multimedia in heterogeneous wireless networks Although the concepts and technologies for future 5th generation (5G) mobile networks are not fixed yet, it can be expected that rather than a radical change in the architecture of network and radio access interface we can expect extension of the set of available radio interfaces with improved energy efficiency, support of new usage scenarios and cooperation of different wireless systems in providing the best possible connectivity in a given location. In such a heterogeneous environment the technical parameters of data link can vary significantly. The aim of the project is to investigate the possibilities of video transmission in such environment and to find and optimize those components, which have the largest impact on the quality of service. Tutor: Slanina Martin, doc. Ing., Ph.D. New active elements combining more ways of electronic control and their applications This topic is focused on study of novel principles of electronic control in the frame of internal architecture of an active element. It extends performances of existing active elements such as: current conveyors, transconductors, current and voltage amplifiers, etc. These elements offer only one adjustable parameter in most cases. Main goals are identification of hitherto unpublished possibilities of the control in the frame of one block or simple combination of several basic sub-blocks. Investigation of this active device will be provided by ideal models, behavioral models (emulators) based on commercially available devices and their realization in suitable CMOS technology. Verification of usability of these active elements in suitable standard and smart circuit applications is also supposed. Tutor: Šotner Roman, Ing., Ph.D. Numerical modeling of anisotropic structures Anisotropic materials exhibit different electric and magnetic properties in different directions. Composite materials, which are used for construction of cars and airplanes more and more frequently, belong to this category of materials. The project is aimed to the development of numerical models of anisotropic structures (composite materials, meta-materials) to be used for the verification of experimental characterization of anisotropic materials. Numerical models will be developed both in commercial electromagnetic solvers and in in-house code based on finite elements. The described research is a part of a prepared Czech-Austrian project to be solved in cooperation with Vienna University of Technology. Tutor: Raida Zbyněk, prof. Dr. Ing. Optical Wireless Link Based on Fully Photonic Technology The object of this research project consists in developing new methods and techniques for the optical wireless links (OWL) based on the implementation of fiber elements into the communication terminal. The aim of the project is to analyze OWL applications in transport telematics, to analyze atmospheric phenomena and to improve reliability of the link working in an unsteady and non-homogeneous atmosphere. The optimal wavelength of carrier regarding eye safety and atmospheric effects will be studied. Tutor: Wilfert Otakar, prof. Ing., CSc. Printable electronics for wearable applications The project is focused on the integration of high-frequency electronic components to textile materials (the concept of Textile Integrated Waveguides). The research is aimed to exploit special pastes for screen-printing and inks for inkjet printing to develop sensor networks in textile materials. Connection of sensors is assumed being wireless (wireless body area networks) or guided (waveguides sewed in the textile substrate by conductive threads). The topic is a part of a common research with the company SINTEX. Wearable electronic systems are going to be applied in textile materials for health and sport applications. The described research is a part of a prepared project to be solved in cooperation with the Center of Polymer Systems in Zlin. Tutor: Raida Zbyněk, prof. Dr. Ing. Reconfigurable antennas The project is focused on the research of reconfigurable antennas for future generations of mobile networks which are capable of adaptation on current network demands and environment conditions. The main attention should be concentrated on the research of original radiators and ways of controlling their properties. The radiators should be exploited for novel beam steerable antenna concepts with multi-polarizing ability and selectivity in operating frequency. Tutor: Láčík Jaroslav, doc. Ing., Ph.D. Research on Coding and Data Processing Used in Free Space Optics and its Implementation The project aims research on new communication techniques applied in terrestrial free space optics links. The goals are to mitigate influence of the atmosphere to the transmission, to optimize the communication technology and to increase its reliability and availability. The research includes implementation of computationally demanding algorithms using FPGA and GPU. Open-source graphical frameworks enabling access to the GPU such as OpenCL and Vulkan are supposed to be used for the implementation of the algorithms. Tutor: Wilfert Otakar, prof. Ing., CSc. Semantic analysis of video The topic is oriented to the domain of video data processing, mainly to the semantic analysis, image understanding, scene analysis, image retrieval, etc. The semantic analysis is a tool for understanding of video scene meaning. It could be used for more effective work with big data, video archiving, searching, browsing. The possible application could be also the intelligent transportation system (ITS), which is based on several technologies, such as communication networks, video processing and transmission, computer vision, etc. The goal of the PhD work will be an analysis of the current state of semantic analysis and creating of more effective ways for image and video understanding. Tutor: Frýza Tomáš, doc. Ing., Ph.D. Sensing electromagnetic phenomena of animal brain The project is aimed to investigate potential approaches to measurements of electromagnetic fields on the surface of an animal head, and to develop a solver of an inverse problem to determine equivalent currents inside the head. In order to verify correctness of the solution of the inverse problem, a phantom of the animal head has to be developed enabling us to change currents inside the head deterministically, and to measure electromagnetic phenomena on the surface of the head. The described research is a part of a prepared project to be solved in cooperation with the Center of Mental Health and Center of Polymer Systems. Tutor: Raida Zbyněk, prof. Dr. Ing. Sensor networks for vehicles One of the ways reducing the cost and consumption of cars, aircrafts, and other transport vehicles is the replacement of expensive and relatively heavy wiring harness interconnecting tens to hundreds of sensors and actuators with control unit by a wireless network. Multipath propagation of signals in a noisy environment and coordination of a mutual communication, however, requires the use of special techniques and signal processing algorithms. The aim of the project is design and optimization of the multi-hop sensor network. The appropriate modulation, methods of equalization and error correction, etc. on the physical layer and methods of communication resources allocation and coordination of data transfer at higher layers will be investigated. Tutor: Prokeš Aleš, prof. Ing., Ph.D. Signal Integrity Analysis for Pulse-Excited Antenna Arrays The thesis aims at the development of a purely time-domain methodology capable of characterizing the peformance of pulse-excited (ultra-wide band) antenna arrays. Namely, the emphasis is placed on the distortion in radiated EM signatures and its characterization by properly defined antenna-system fidelity factors accounting for such systems' beam-shaping and beam-steering capabilities. The thesis will cover (1) analytical and numerical time-domain analyses of generic antenna elements; (2) general description of the pulsed EM-radiation characteristics of an antenna array in dependence on its configurational (e.g. positioning of antenna elements) and excitation parameters (e.g. the pulse shape of feeding electric currents); (3) analytical study into mutual EM space-time coupling between antenna elements; (4) illustrative parameter studies of selected antenna arrays validating the proposed concepts. Tutor: Štumpf Martin, Ing., Ph.D. Source and channel coding of video data for wireless communication systems In present-day communication systems (such as digital television), the error control coding of the transmitted data is often applied independently of the source coding: parity is added to the source-coded digital signal, resulting in fixed correction capacity related to the code rate. For digital video signals such a scheme provides unchanged picture quality up to the point of exceeding the capacity of the code, where the quality drops rapidly. The aim of this project is to explore the usability of Unequal Error Protection (UEP) and Joint Source-Channel Coding (JSCC) techniques in the area of new broadcasting services (e.g., DVB-NGH) and propose optimal setup of these coding schemes for real transmission conditions. The proposed techniques should allow for graceful degradation of visual quality in degrading reception conditions, increasing the universality of systems under consideration. Tutor: Slanina Martin, doc. Ing., Ph.D. Special advanced active elements in applications of digital modulations This work is focused on study of utilization of special active elements and blocks in the designs of digital modulators and demodulators (for example: frequency hopping, phase shift keying, pulse width modulation, etc.) for structures of physical layer of communication systems working in base-band and inter-frequency band. Design of final applications supposes proposals of own network solutions of electronically controllable oscillators and generators of signals with specific output waveforms. One goal of this work consists in specification of parameters of active elements and blocks required for their utilization in such applications. Theoretical hypotheses will be verified by computer simulations and by experiments with commercially available elements (behavioral emulator), or eventually by simulations and realization of proposed systems in available CMOS technology (AMIS 0.35 um, TSMC 0.18 um). Tutor: Šotner Roman, Ing., Ph.D. Substrate integrated waveguide based antenna array Concepts of substrate-integrated guiding structures will be exploited for the implementation of feeding and beam-forming networks of terahertz antenna arrays. A potential reconfigurability of networks will be investigated. Terahertz signal will be obtained by the multiplication of conventional microwave frequencies. Research will be conducted in cooperation with the company RAMET. New concepts of antenna arrays will be therefore applied in traffic monitoring and control systems. Funding from the international training network "Convergence of Electronics and Photonics Technologies for Enabling Terahertz Applications" can be provided. Tutor: Raida Zbyněk, prof. Dr. Ing. Substrate integrated waveguide based antenna array Concepts of substrate-integrated guiding structures will be exploited for the implementation of feeding and beam-forming networks of terahertz antenna arrays. A potential reconfigurability of networks will be investigated. Terahertz signal will be obtained by the multiplication of conventional microwave frequencies. Research will be conducted in cooperation with the company RAMET. New concepts of antenna arrays will be therefore applied in traffic monitoring and control systems. Funding from the international training network "Convergence of Electronics and Photonics Technologies for Enabling Terahertz Applications" can be provided. Tutor: Raida Zbyněk, prof. Dr. Ing. Technology and methods for precise localization in centimeter and millimeter bands The subject of this project is focused on research of high precise distance measurement and positioning of objects using radio-communication systems in centimeter and millimeter wave bands. The goal of this work is oriented to development of effective methods and reliable systems for precise measurement of distances or positions of objects based on deterministic signals or standardized radio-communication signals with accuracy up to centimeters. Achievement of such required accuracy needs an application of UWB systems and channel modeling for various scenarios. Also precise mutual positioning of cars using C2C communication is objective application of this research. Tutor: Šebesta Jiří, doc. Ing., Ph.D. Wideband Vector Measurements The aim of the project is the study of operation theory and proposition of new solutions for wideband microwave vector measurement system with the main orientation to the sixport measurement methods. Actual used systems are dedicated to lower microwave frequencies and from technological point of view they are not applicable to higher frequencies. Research of the necessary calibration sets and basic function methods is also included in the project. Also the study of parameter details of measurement systems and modeling of their behavior with the changes in environment, long term stability etc. will be contained in the research project. Tutor: Urbanec Tomáš, Ing., Ph.D. Wireless networks for personal assistive technologies Doctoral thesis is focused on analysis and modeling of the personal assistive technologies for people with sensorial or motoric handicap. Thesis deals with design of the wireless networks consist of video image and audio sensors and their connectivity into the Internet of Things (IoT) and according services. Optimization of the network regarding relevant features extraction from the captured data, its volume in the wireless network, energy balance and computing demands of the components at the same time with reliability of the present and future wireless networks coexistence are points to be investigated. The aim of the work is experimental verification of the wireless network concept in selected use cases of the personal assistive system. Tutor: Kratochvíl Tomáš, prof. Ing., Ph.D. Click here to read information about other branches. [-]

PhD in Technology in Transportation and Telecommunications

Czech Technical University in Prague
ülikoolis Osaajaga 4 aastat October 2017 Tšehhi Praha

Technology and Management in Transportation and Telecommunications | Transportation Systems and Technology | Air Traffic Control and Management [+]

Fields of Study Technology and Management in Transportation and Telecommunications Transportation Systems and Technology Air Traffic Control and Management [-]