Branch Details
Electronics and Communications
FEKTAbbreviation: PKA-ESTAcad. year: 2014/2015
Programme: Electrical Engineering and Communication
Length of Study: 4 years
Profile
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
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.
Guarantor
Issued topics of Doctoral Study Program
- AD converters using nonlinear MOS capacitors
The work should be oriented to usage of nonlinear capacitors in analog to digital converters and to possible linearization of the capacitors. These capacitors are constructed by gate capacitance of MOS transistors, which are available in all CMOS technologies and don’t require any additional process steps. The work should be first directed to a sensitivity study of different types of AD converters to non-linearity of used capacitors followed by a selection of the most appropriate topologies and analysis which parameters are achievable for these topologies. Recommended minimum resolution is 12 bits. Part of the work is design and realization of selected AD converter as a test chip, exhaustive measurement of parameters and comparison of theoretical results with measurements. For realization of the integrated circuit is recommended ON Semiconductor onc18 technology.
Tutor: Horský Pavel, doc. Dr. Ing.
- 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.
- Advanced signal processing for channel estimation
This subject is oriented into domain of channel estimation in case of time-varying channels. In such a case, also the channel impulse response changes with time. The goal is to investigate the suitability and performance of selected advanced signal processing methods like the Basis Expansion Model (BEM) ant to optimize their parameters (e.g. basis functions) for specific radio channels (e.g. the vehicular channels).
- 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. The topic is directly related to the European research project ENIAC JU ARTEMOS (Agile RF Transceivers and Front-Ends for Future Smart Multi-Standard Communications Applications) and next research.
- Analysis of glottal pulses
Proposed project deals with estimation and analysis of glottal pulses in speakers using speech signal. The aim of this project is development and testing of special algorithms for estimation of the waveform of pulses generated by glottis during speaking. The analysis of estimated pulses will be oriented to selected factors useful for medicinal diagnostics. Development of algorithms will be based on robust DSP methods. In addition, some specific databases in realistic conditions will be created.
- Analysis of multiconductor interconnects by FDTD methods
The aim of the project is to develop methods of analysis of transient phenomena on general interconnects of the kind of coupled multiconductor transmission lines by means of FDTD (Finite-Difference Time-Domain) techniques. The interconnects can be nonuniform in general, with frequency-dependent parameters as well as under nonzero initial conditions. The solution should take into account not only nonlinear terminating networks but also possible nonlinearity of the interconnect itself. Proposed methods should be more accurate, faster and more generally applicable compared to methods available in a literature. An interested person is supposed to know techniques of programming in Matlab.
- 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 a generalization of some proposed techniques towards the analysis of hybrid electronic systems based on stochastic differential-algebraic equations (SDAE). An applicant is assumed to be interested in mathematics and programming in Matlab environment.
- Antennas and circuits for energy harvesting
A further development of wireless sensor networks is conditioned by an autonomous feeding of partial sensors. Therefore, an intensive attention is turned to the systems gathering electromagnetic energy from environment. Harvesting systems exploit an appropriate wideband omnidirectional antenna, efficient rectifiers and rechargeable batteries. The dissertation project is focused on the development of an original concept of a system for energy harvesting. Functionality of the system has to be verified experimentally. The planned research is a part of the European project COST IC1301 Wireless Power Transmission (WiPE). Solution of the project assumes a tight cooperation with other members of the consortium.
Tutor: Raida Zbyněk, prof. Dr. Ing.
- Coexistence of the digital broadcasting networks and mobile communications in shared frequency bands
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). 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. The topic is directly related to the European research project CATRENE CORTIF (Coexistence of RF Transmissions in the Future) and next research.
- Design of measuring systems for special EMC chambers
The project is focused on the analysis of non-standard electromagnetic environments for electromagnetic interference measurements. The analysis has to be focused on different measurement techniques and also some calibrations of the unknown environment. The main aim is to gain similar result of measurements in the uncertain condition as in the semi-anechoic chambers by special measurement setups and corrections. The analysis has to cover also full and semi-anechoic chambers and also reverberations and only shielded rooms.
Tutor: Dřínovský Jiří, Ing., Ph.D.
- Detection of alcohol by voice analysis
Proposed project is oriented to detection of alcohol using speech signal analysis. 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. In addition, some specific databases under realistic conditions will be created.
- Directional antennas for band of millimeter waves
The project is focused on the research of the novel 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 perspective frequency bands.
- 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 etc.
- Electronically configurable transfer structures
Presented topic consists in synthesis and design of filtering circuits and two-ports generally that allow electronic change of the transfer type and control of particular parameters of the filter. 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. An utilization of existing active elements or development of new own device(s) is assumed.
- 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. 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.
- 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 (multimedia) 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) technology is considered to be a most prospective for such applications. The aim of the project is research of channels properties and creation of their models for applications aimed at positioning and data communication in outdoor environment and vehicle interior and design of an optimal concept of the communication and localization systems ensuring reliable functionality.
- Imaging Methods With the Use of Vector Network Analyzer
The aim of the project is area of imaging systems, which use the vector network analyzer. The work deals with methods used in 2D up to 4D imaging systems, studies their features, restrictions and methods of their creations. In the practical part it will lead to realization of perspective system in laboratory and study of dealing with measured data will be done to produce the imaging solution. Practical use is directed to ground penetrating radar or microwave tomography.
Tutor: Urbanec Tomáš, Ing., Ph.D.
- Measuring of the optical beam parameters
The aim of this project is to develop, justify and verify the method for measuring of the coherence of optical beams that are intended for communication in conditions of turbulent atmosphere. The design of the laser transmitter working with several beams which form a “top hat” beam as a result is a part of the project. It will be necessary to create a program using the method of Fourier Optics for the optical beams simulation, their addition and their propagation in the turbulent atmosphere. The experimental verification of mutual interference of the beams is requested.
- Methods for image signal compression using 3D-DCT
As part of the project, it is necessary to explore the possibility of compressing the image signal using the 3D-DCT transform. On the basis of the data obtained, an optimum compression method will be drawn up that would be appropriate to implement in the digital signal processor. The project will result in the verification of the possibility of compressing image signal using the 3D-DCT transform in real time.
- Methods for precise localization in wireless sensor network
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, patient localizations, drivers in a car detection, or accurate localization of RFID tags are objective applications of this research.
- Modelling of atmospheric optical channel for photonic transmissions
The topic of the proposed dissertation is focused on the use of optical wireless links in fully-photonic networks 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.
Tutor: Kolka Zdeněk, prof. Dr. Ing.
- 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.
- New active elements combining more ways of electronic control and their applications
This topic is focused o study of novel principles of electronic control in frame o internal architecture of active element. It extends possibilities 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 control in frame of one or simple combination of several basic sub-blocks. Investigation of this active device will be provided by ideal models, behavioral models based on commercially available devices and their realization in suitable CMOS technology. Verification of usability of these active elements in suitable applications is also supposed.
- New Methods and Technologies for Optical wireless Links
The object of this research project consists in developing new methods and techniques for free space optical links based on the implementation of fiber elements into the communication terminal. The aim of the project is to analyze non-standard atmospheric phenomena and an improvement of 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.
- New techniques of signal processing in 5G mobile systems
New methods of signal processing, and other new techniques planned for future mobile communications systems 5G. Comparison upcoming 5G mobile systems with existing 3G and 4G systems. Focus on systems WWAN, WMAN, WLAN and WPAN.
- Noncoherent Ranging of Objects in 3D Space and Realtime
The aim of the project is range measurement according to time delay of signals via active transponder on measured object. The work deals with modulation and code sequences selection, and with suitable ways of measurement handling. Following the measurements from more different stations, it is necessary to do proper synchronization of their measurements to be able to obtain position in the 3D space. The work is aimed at simulations of problems in Matlab and practical measurements via active satellite transponders.
Tutor: Urbanec Tomáš, Ing., Ph.D.
- Passive localization of experimental satellites in low earth orbits
The aim of the project is a study of actual signals from experimental satellites and its influence on localization. Measurement with multiple of receivers will follow to get experimental data for localization implementation. The research then will be targeted to optimal solutions for high precision, resolution and other parameters of realized system.
Tutor: Urbanec Tomáš, Ing., Ph.D.
- Perceptual quality enhancement in emerging multimedia systems
The project is aimed at elementary research in the area of methods and algorithms for enhancement of perceptual quality in modern and emerging multimedia systems, with focus on image data. Since the modern multimedia systems are, due to generally high resolution and frame rate, very closely related to irreversible loss of visual information in lossy compression, it is desirable to perform postprocessing of image data in such a manner, that the perceived quality is as high as possible. Such postprocessing can include for instance local sharpening, adjustment of luminance, contract, hue, etc. It can be expected that in different application areas under consideration (UHDTV, 3DTV, HDR, mobile TV), the appropriate procedures will be very different.
- Probabilistic neural networks for modeling stochastic fields
Environment of numerous wireless communication systems is strongly fluctuating. For this reason, a deterministic description of such fields is impossible. Fields inside vehicles or fields interacting with human bodies can be given as examples. The dissertation project is expected to perform extensive measurement campaigns in vehicles and in vicinity of human bodies. Results of measurements are assumed to be processed statistically and used for training neural networks. The trained neural network is expected to estimate the probability of measuring a given intensity at a given position.
Tutor: Raida Zbyněk, prof. Dr. Ing.
- Radio wave propagation in proximity of human body
The project is focused on the description of radio wave propagation in the proximity of the human body. The main attention should be concentrated on the investigation of the human body influence on the radio wave propagation and exploitation of obtained knowledge for a creation of radio wave propagation models in selected frequency bands. Outcomes of the project should find application in the field of wireless on-body communication systems
- Signal processing algorithms in cooperative radio communications
Prospective subject is oriented towards the signal processing algorithms in cooperative radio communications. The aim is to design an optimal algorithm for distributed solving of selected problem in the system of local/sensor networks. In such a case, the individual network components solve a part of the problem and communicate with the neighbouring components without the need for a centralized control. As the potential application a decentralized radio resource allocation (parts of the spectrum) to the individual network nodes or decentralized authentication of RF devices can be mentioned. The project is suitable for motivated student with the real interests in modern signal processing theory.
- Signal processing in UW-OFDM systems
The subject is oriented towards the multicarrier communications area. The Unique Word OFDM (UW-OFDM) is a novel signaling scheme, proposed only a few years ago, that seems to be a promising physical layer candidate for future wireless and wireline communication systems (5G). The aim of the dissertation will be to propose new signal processing algorithms for UW-OFDM, to propose its extension to multiuser access and to compare it with the alternative approaches. A close cooperation with JKU Linz in Austria is expected.
- Simulation and emulation of nonlinear systems and mem-systems
The aim of the doctoral project is the development and application of methods for simulating basic circuit mem-elements (memristor, memkapacitor, etc.). An application of conventional simulation algorithms that are implemented, for example, in Spice simulators may lead to the occurrence of essential numerical errors. The proposed dissertation is focused on the revision of existing and development of new simulation methods especially with respect to the reduction of errors. The proposed algorithms will be also used for hybrid emulators of mem-elements, which are, in fact, classic electronic circuits with a microprocessor that mimic the activity of mem-elements. A potential candidate is expected to design and assemble experimental electronic circuits.
Tutor: Kolka Zdeněk, prof. Dr. Ing.
- Synthetic aperture radars for high resolution imaginary using low-flying objects
This thesis is focused on the research of synthetic aperture radar (SAR) methods applicable to radar imagery of the Earth surface from low-flying objects (helicopter, small plane, drone) to achieve very high resolution in the order of centimeters. The aim of this research is an adaptation of the classical approach used for the SAR imaging of the Earth surface from satellites or stratospheric aircraft to low-flying platforms. This research includes analysis of technological possibilities, optimization of the system architecture, design of suitable frequency plan and measuring signals, and signal processing methods for reflected echoes in order to achieve high resolution.
- Techniques of numerical inverse Laplace transforms for electrical engineering
The project is focused on developing novel or innovative numerical techniques for evaluation of inverse Laplace transforms (NILT) of functions of single and multiple variables, being accurate and universal enough for purposes of computer simulation in electrical engineering. The methods are still sought after on a world-wide scale, not only in the electrical engineering, but also in another fields of science where systems of ordinary or partial differential equations are solved. Multivariable inverse Laplace transforms, in conjunction with Volterra series theory, can also be used for weakly nonlinear systems solution. As a part of the project, searching effective program algorithms is also required. The knowledge of programming in Matlab environment is needed at interested persons.
- 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 bands. The goal of this work is oriented to effective methods and reliable systems for precision 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.
- Tools for Codes Optimizing on Modern Processors
This topic describes novel techniques and tools for optimizing codes on modern architectures, while the main focus is on the low-level approach. High-level programming languages are commonly used in microprocessor techniques for the reduction of development time and a simple portability. But in several domains, the low-level development process could bring better results (smaller, faster code). The goal of the topic could be the development of an assembly code generator, containing both: the universal hardware modelling and the mapping of required application (e.g. vector mathematical functions, routines for multiplying matrices, transform coding, cryptology functions, etc.). Output would be in the particular instruction set (e.g. x86 processor family with its extensions list MMX, SSE, ...). The generated low-level code should be optimized and comparable to the general libraries (e.g. MKL—Math Kernel Library, VML—Vector Mathematical Functions Library, etc.).
- 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.
Course structure diagram with ECTS credits
Abbreviation | Title | L. | Cr. | Com. | Compl. | Hr. range | Gr. | Op. |
---|---|---|---|---|---|---|---|---|
DBM1A | Advanced methods of processing and analysis of images | en | 4 | Optional specialized | DrEx | S - 39 | yes | |
DTK2A | Applied cryptography | en | 4 | Optional specialized | DrEx | S - 39 | yes | |
DET1A | Electrotechnical materials, material systems and production processes | en | 4 | Optional specialized | DrEx | S - 39 | yes | |
DFY1A | Junctions and nanostructures | en | 4 | Optional specialized | DrEx | S - 39 | yes | |
DEE1A | Mathematical Modelling of Electrical Power Systems | en | 4 | Optional specialized | DrEx | S - 39 | yes | |
DME1A | Microelectronic Systems | en | 4 | Optional specialized | DrEx | S - 39 | yes | |
DRE1A | Modern electronic circuit design | en | 4 | Optional specialized | DrEx | S - 39 | yes | |
DAM1A | Selected chaps from automatic control | en | 4 | Optional specialized | DrEx | S - 39 | yes | |
DVE1A | Selected problems from power electronics and electrical drives | en | 4 | Optional specialized | DrEx | S - 39 | yes | |
DTE1A | Special Measuring Methods | en | 4 | Optional specialized | DrEx | S - 39 | yes | |
DJA6A | English for post-graduates | cs | 4 | General knowledge | DrEx | Cj - 26 | yes | |
DMA1A | Statistics, Stochastic Processes, Operations Research | en | 4 | General knowledge | DrEx | S - 39 | yes |
Abbreviation | Title | L. | Cr. | Com. | Compl. | Hr. range | Gr. | Op. |
---|---|---|---|---|---|---|---|---|
DME2A | Microelectronic technologies | en | 4 | Optional specialized | DrEx | S - 39 | yes | |
DRE2A | Modern digital wireless communication | en | 4 | Optional specialized | DrEx | S - 39 | yes | |
DTK1A | Modern network technologies | en | 4 | Optional specialized | DrEx | S - 39 | yes | |
DTE2A | Numerical Computations with Partial Differential Equations | en | 4 | Optional specialized | DrEx | S - 39 | yes | |
DET2A | Selected diagnostic methods, reliability and quality | en | 4 | Optional specialized | DrEx | S - 39 | yes | |
DAM2A | Selected chaps from measuring techniques | en | 4 | Optional specialized | DrEx | S - 39 | yes | |
DBM2A | Selected problems of biomedical engineering | en | 4 | Optional specialized | DrEx | S - 39 | yes | |
DEE2A | Selected problems of electricity production | en | 4 | Optional specialized | DrEx | S - 39 | yes | |
DFY2A | Spectroscopic methods for non-destructive diagnostics | en | 4 | Optional specialized | DrEx | S - 39 | yes | |
DVE2A | Topical Issues of Electrical Machines and Apparatus | en | 4 | Optional specialized | DrEx | S - 39 | yes | |
DMA2A | Discrete Processes in Electrical Engineering | en | 4 | General knowledge | DrEx | S - 39 | yes |
Abbreviation | Title | L. | Cr. | Com. | Compl. | Hr. range | Gr. | Op. |
---|---|---|---|---|---|---|---|---|
DQJAA | English for the state doctoral exam | cs | 4 | Compulsory | DrEx | yes |