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Original title in Czech: Elektronika a sdělovací technikaFEKTAbbreviation: PP-ESTAcad. year: 2009/2010
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
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.
Guarantor
prof. Ing. Aleš Prokeš, Ph.D.
Issued topics of Doctoral Study Program
Peruse way of signal processing in LTE system and carry out detailed analyses of access procedures into LTE system. Determine common recommended for optimum access control to the network. Results and recommendation verify by simulation on designed mathematical system models.
Tutor: Hanus Stanislav, prof. Ing., CSc.
The aim of the dissertation thesis is focused to research of multi-objective solution and optimization in electrotechnics. The optimization technique will be combined the various types of optimization (stochastic methods, binary methods, real coding methods, global and local optimization techniques) for seek the Parret's curve of best solution. The algorithms will be used in practical projects.
Tutor: Lukeš Zbyněk, Ing., Ph.D.
The work is oriented into the domain of multicarrier systems using OFDM principle. The aim of the work is to design new algorithms for multicarrier system adaptation to external conditions (SNR, fading etc.). The proposed methods are assumed to work in cognitive radio applications. The system parameters like number of subcarriers have to be adapted to actual situation in the channel (presence of primary users). The developed algorithms should be implemented in FPGA or DSP devices.
Tutor: Maršálek Roman, prof. Ing., Ph.D.
This thesis is aimed on developing the procedures and functions which are suitable for advanced analysis of generally described nonlinear dynamical systems of arbitrary order. In detail, it is about a research focused on the new methods for metric dimension estimation of the state space attractors with respect to the short evaluation time and sufficient accuracy. The input data for this analysis can be system given by a set of the ordinary differential equations as well as signals in the time domain. The part of this work is studying the possibility to implement these algorithms on the problems of searching for specific solutions of a real physical systems by using stochastic optimization. These topics are actual and still unpublished. The basic knowledge of Matlab and Mathcad is the advantage for the interested persons.
Tutor: Petržela Jiří, doc. Ing., Ph.D.
At present, there are interesting MIO, discrete devices and new materials which allow to find solutions of microwave parts of the ground as well as the space segments on new principles. These are namely antenna feeds with integrated low noise amplifiers, power amplifiers, quadrature frequency converters, local oscillators with low phase noise, frequency filters, frequency synthesizers, modulators and demodulators. A part of the project will be studies of application possibilities, parameters analysis and designs of extensional units of a satellite communication chain.
Tutor: Kasal Miroslav, prof. Ing., CSc.
The project is focused on the analysis of EMI filters performance and on creating their models. The models will have to respect the real circuitry of the EMI filter. The models itself have to contain the spurious parameters which degrade the filters performance in higher frequency range. The parameters of the filters for models will be taken from the measured data in common measuring systems. The modern optimization method should be necessary to use during the creation of filter models. The project has to have also the analysis of the worst-case performance analysis of tested filters.
Tutor: Dřínovský Jiří, Ing., Ph.D.
The bit error rate and availability of free space optics (FSO) systems are essentially affected by an atmospheric transmission channel characterized by the time variable dispersion, turbulence and absorption. Due to multipath propagation of the optical signal through the turbulent atmosphere the inter-symbol interferences occur. They influences can be effectively suppressed by using the advanced technologies based on OFDM. The aim of the project is investigation of the properties of turbulent medium and determination of proper conception of OFDM resistant to the influence of the transmission channel.
Tutor: Prokeš Aleš, prof. Ing., Ph.D.
Recent development in the area of optical transmissions through the atmosphere leads predominantly to the continuous increase in the transfer rates of the systems based on OOK (On-Off Keying), but also to the introduction of new technologies such as RoFSO (Radio over Free Space Optics), which utilizes OFDM technology. The goal of the project is the optimization of the optical receiver with the aim to achieve the best possible parameters of the above systems (transmission range, transfer rate, error rate, distortion, etc.).
The doctoral theme is focused on analysis of SFN (Single Frequency Network) and MFN (Multi Frequency Network) broadcast networks parameters for digital television according to DVB-T/H standard. With the analysis is essential focus on coverage criteria of useful signal transmitters set and interference influence evaluation on signal coverage. Further analysis deals with time synchronization in networks, guard interval evaluation, according coverage evaluation and network design parameters optimization. The conditions of network design are results of regional conference RRC06. For the analysis is available commercial SW called "SFN Networks" (SW interface only in Czech) or self-created evaluation algorithms for radio signals propagation in terrain profile in limited area. The aim of the work is evaluation of the SFN and MFN networks parameters influence on required coverage and evaluation of the transmitters requirements for the same reason.
Tutor: Kratochvíl Tomáš, prof. Ing., Ph.D.
The doctoral theme is focused on signal processing and transmission analysis of digital television for mobile terminals in DVB-H (Handheld) and DVB-SH (Satellite Handheld) standards. These standards deal with the reception characterized by the model of transmission channel with multipath reception and Doppler shift (i.e. "portable" and "mobile" reception). Prerequisite of the successful analysis is design of convenient simulation model of the transmission and digital modulation with optional parameters of each block and their software application (Matlab, Simulink). 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.
The doctoral theme is focused on signal processing and transmission analysis of digital television for DVB-S2/C2/T2 transmissions. According to available information these standards and their proposals deal with the data capacity increase, N stage single- and multi-carriers modulations, MIMO systems, alternative way of channel equalization and signaling of transmission parameters and possibility of new services (HDTV, Video on Demand, interactive services etc.). Prerequisite of the successful analysis is design of simulation models of the transmission and digital modulations with optional parameters of each block and their software application (Matlab, Simulink). The aim of the work is comparison of second generation DVB standards performance parameters and their transmission characteristics with the first generation standards (DVB-S, DVB-C a DVB-T) and critical discussion of achieved results.
Project deals with the problem of analyse and optimizing of the digital CATVs technical parameters. Analyse and development of the interactive, user friendly and practically usable programme for analyse and optimizing design of the small and middle CATVs are the main aims of this project.
Tutor: Říčný Václav, prof. Ing., CSc.
Project deals with the problem of continual measurements of the moving motor vehicles distance. Project should be to include analyses, evaluation and selection of the suitable method for the distance measurement, pursuant to the limiting moving car parameters. Design and realization of the anti-collision system for measurement of the previous motor vehicle distance (inclusive strategy of the drivers warning, eventually automatic riding regime affection) are the main aims of this project.
The project is oriented to the research of neural classifiers, which will be used for the virtual certification of small aircrafts from the viewpoint of electromagnetic compatibility. On the basis of the extensive set of computer simulations of the electromagnetic field inside the aircraft in the relation to the construction parameters of the aircraft, training patterns will be created. The patterns will be used for training the neural networks to predict the internal electromagnetic field of the aircraft and to determine the probability that the internal field complies with the norms of electromagnetic compatibility.
Tutor: Raida Zbyněk, prof. Dr. Ing.
Proposed project deals with fast keyword search in audio documents. The aim of this project is to identify the topic of a talk by means of simple keywords or phrases given by the user. The searching process is analogous to the search in textual files. An efficient detection of spoken keywords embedded in recorded continuous speech is based on word recognition approaches.
Tutor: Sigmund Milan, prof. Ing., CSc.
The project is focused on the analysis of antennas for the electromagnetic field excitation for EMC tests of large objects in wide frequency band. Properties of antennas and the excited field will be analyzed in both the frequency domain and the time domain. Ways of improving field homogeneity in the active zone of the antenna, and the synthesis of the required time response of the excited field will be investigated as well.
Tutor: Nováček Zdeněk, doc. Ing., CSc.
Description and testing of modern compression methods used in domain of the video signal processing. Categorization of individual tools used in MPEG-4 standard and their effect on the output data stream. Modeling of the encoder's and decoder's partial blocks, followed by the implementation on a digital signal processor or on a FPGA. Examination of the arithmetical complexity of the individual blocks in the compression chain.
Tutor: Frýza Tomáš, doc. Ing., Ph.D.
Mechatronic systems represent a combination of electrical circuits, drives and mechanical components. At present the systems are usually simulated by means of an equivalent electrical circuit. The aim of the project is to transform methods of numerical and symbolical analysis originally developed for electrical circuits to other energetic domains, which would make the analysis more effective. Design of a new simulator is expected in the project. Prospective applicant should be familiar with programming.
Tutor: Kolka Zdeněk, prof. Dr. Ing.
Tutor: Brančík Lubomír, prof. Ing., CSc.
The project is focused on the analysis of three-phase (or multiphase) 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.
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 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. The project is connected with research at IREL in the frame of grant project GACR, No. 102/09/0550.
Tutor: Wilfert Otakar, prof. Ing., CSc.
The aim of the project is analyzing of the influence of atmosphere on the laser radar operation. The theme includes simulation of radar power budget and model for probability assessment of target detection. The project is focused on the problem of target cross section determination in the optical band. The project includes design of the laser transmitter and the optical receiver for measuring of surface reflectivity and atmospheric influence on the laser beam. The project is connected with the research at IREL.
The project is focused on research of special planar microwave transmission structures by using the conformal mapping method. The research will be concerned to various microstrip, coplanar, and microcoplanar structures, symmetrical and bi-planar slotlines, 3-D microwave structures and their modifications. The goal is to create simple, but accurate enough analytical models of such structures for analytical computation their main parameters. The work may include theretical study part, as PC simulation and experimental verification of designed methods. Prospective applicant should demonstrate very good knowledge in higher mathematics, mainly in analytical computational methods..
Tutor: Svačina Jiří, prof. Ing., CSc.
The aim of this project is 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. A program elaboration for the optical beams simulation, their addition and their propagation in the turbulent atmosphere will be needed. The experimental verification of mutual interference of the beams is requested. The project is a part of the research at IREL in the frame of grant project NPVII, No. 2C06012.
This project is focused on a research of method and systems for RFID spatial identification by an application of a few sensors. In the present time the signal processing algorithms and technology for passive RFID tags are sovled. The future of research in RFID technique is a development of methods for exact definition of scanning space, increasing of tag reading capacity per time unit, and tag position measurement. The aim of project is the research of technology and algorithms for spatial RFID systems.
Tutor: Šebesta Jiří, doc. Ing., Ph.D.
This project is focused on the research of autonomous multisensor system for identification and classifiacation of hazardous object near the car. In the present time are intensively developed systems for car to car communicanion and integrated traffic communication for information transfer about possible critical situations near the car. The autonomous collision avoidance system is determined for detection of non-communication targets as a pedestrians or animals. The aim of this project is research autonomous collision avoidance systems for car with an application of various type of sensors (radars, camera, ultrasonic sensors) and optimal fusion of its signals.
The project is focused on the development and implementation of methods for testing analog circuits. It is possible, by means of suitably chosen test points, to identify a circuit component that is faulty of its value is out of specifications. The theoretical part of the project includes the research into methods for the optimum choice of test points and the research into methods for identification of the faulty element. The goal is to use the minimum number of test points. The work may include practical design of a tester for verification of designed methods. Prospective applicant should demonstrate experience with electronic circuit design.
Reliability and availability of free space optics (FSO) systems are the factors limiting the FSO applicability. Both these parameters are affected by atmospheric conditions (turbulence, scattering, absorption, temperature) and they can be increased by proper conception of the mechanical, electrical and optical elements of FSO. The aim of the project consists in creation of FSO model (transmitter, receiver and transmission channel) comprising influence of weather, temperature, component technology, etc., and further in optimization of FSO model for maximum achievable reliability and availability.
The project is focused on the research of new structures of planar microwave circuits consisting of circuits with lumped, and/or quasi-lumped parameters. The main interest will be oriented to planar resonators, directional and hybrid couplers, power dividers/combiners, and microwave frequency filters. The aim is to improve the electrical parameters of conventional types of such circuits and also to reduce their dimensions. The work includes theoretical study part, PC simulations, and experimental verification of designed circuits.
The project is focused on the development of efficient and accurate numerical models of composite layers used in aircraft industry. Numerical models have to be based on the time domain method of edge finite elements. Models have to involve general harmonic and impulse waves. Attention has to be turned to perfectly matched layers used for a proper modeling of open structures and related problems.
The project is focused on the research of numerical methods in the time domain for modeling periodic structures of infinite size based on the Floquet's theorem and the periodic Green's function. Further attention of the project should be concentrated on modeling periodic structures of finite size. The emphasis will be put on the efficiency and stability of solution. Developed methods will be used for the analysis of frequency-selective surfaces and metamaterials.
Tutor: Láčík Jaroslav, doc. Ing., Ph.D.
The cognitive radio approach is supposed to be used in future communication systems. The cognitive transmitter performs the spectral analysis and in the case of free frequency band can allocate the channel reserved for other (primary) users. The aim of the dissertation is to propose new methods for received signal parameter estimation (primarily the type of modulation). The influence of environment like nonlinearity, multipath propagation and low power of detected signal have to be taken into the account.
The project is focused on the research of different approaches to composing objective functions in different domains (frequency one, time one, spectral one) and their appropriate combinations. The final multi-objective function is solved by selected global algorithms (particle swarm optimization, simulated annealing, evolutionary algorithms and their mutual combination). Pareto set of optimal solutions is the required result. The described approaches are applied to the optimization of antennas, frequency selective surfaces and passive planar circuits.
The project deals with a numerical modeling of the behavior of electromagnetic structures regarding the accompanying physical phenomena (heating, deformations, mechanical effects, surface wave propagation, etc.). The project is aimed to create the methodology of composing multi-physical models in COMSOL Multiphysics and verifying the methodology on models of SAW filters, MEMS switches and other components.
Peruse possibilities achievement higher spectral efficiency, of a order tens bps/Hz, in communication systems. Consider the Ultra Spectral Modulation (USM) technique. Put together mathematical model of signal processing and carry out basic simulation for check available spectral efficiency. The mobile radio channel must be used in mathematical models.
The dissertation thesis deals with research of antennas in RFID techniques. The research is focused to design of antennas of RFID readers and tags for special application. The research is cooperative with companies of RFID technology (Metra Blansko, Barco).
The Reliability of free space optics (FSO) systems is among others conditioned by application of high power optical transmitters, which ensure sufficient signal to noise powers ratio at the receiver side. The new technologies based on OFDM require in addition high linearity of the entire transmission chain. The aim of the project is determination of a proper transmitter conception for advanced modulation techniques used in atmospheric transmission environment.
The project is aimed at the research of new circuit principles and the optimization of known solutions of voltage references for automotive applications. The references are specific by operation in a large temperature range (-50oC to +200oC) and required low sensitivity to interfering signals from power supply and the IC substrate. The required temperature range requires the application of optimum higher-order compensations. The project includes also realization of designed circuit and throughout analysis of measured results of reference parameters as well as the study of immunity to electromagnetic interfering fields.
Formulation and practical validation of methodology of pre-compliance tests oriented mainly to the EMC immunity tests of electronic equipment. Research of influnce of non-compliance of technical tests equipment, of test sites, and of test methods and steps on the correctness and accuracy of test results. Theoretical study, PC simulation and experimental verification.
Radio resources management is important for availability of service and area coverage in wireless networks. Standard for Mobile WiMAX IEEE 802.16e is designated for fast data transfers in mobile devices. Optimal allocation of the radio resources is crucial for best service availability and network throughput. The project is devoted to design of the algorithms for Radio Resources management in Mobile WiMAX network and its optimalization.
Tutor: Prokopec Jan, Ing., Ph.D.
Proposed project is oriented to recognition of speakers and their internal states using speech signal analysis. The aim of this project is development and testing of special algorithms for investigation of emotional as well as mental speaker states which negative affect the activity and behaviour of persons such as fatigue, stress, depression, etc. Development of algorithms will be based on robust DSP methods. In addition, some specific databases in realistic conditions will be created.
The project is focused on the investigation of amplitude distribution and the phase one, and the spatial orientation of the partial components of the near field of antenna systems. Ways of simplifying and speeding-up the procedure will be proposed. Attention will be turned to ways of replacing information about the phase distribution by modified global-optimization processing of amplitude distributions on several planes..
At present, wireless communication systems solution is mostly based on digital signal processing. Software Defined Radio makes use of universal programmed hardware for near to optimal signal processing. Goal of this project is search and evaluation such algorithms for receiving part of the satellite communication systems ground segment.
Requirements of digital signal processing together with the feasibility of adaptation of radio communication systems on instantaneous characteristics of the transmission channel led to origination of the software defined radio (SDR), which can be reconfigured (change the transfer protocol, modulation, bandwidth, etc.) only by the replacement of the control software and later they led to creation of cognitive radio (CR), which can additionally allocate and utilize free frequency band, detect modulation used, etc. The aim of the project is analysis of algorithms used especially in CR and creation an effective implementation of SDR and CR into programmable logical fields (FPGA, PLD).
The project is focused on the development of antennas for radio communication with special demands on polarization properties and directivity patterns. Ways for improving antenna parameters, reducing antenna dimensions and simplifying antenna constructions will be investigated. The project includes optimization of antennas with the omni-directional radiation in horizontal plains, which are fed by slots in its coaxial feeder as well.
Project falls into the area of the computer processing of the static pictures. It is focused on the analyse of the attainable technical parameters (accuracy of measurement especially) of the stereo-photogrammetric systems and their optimizing. Analyse and development of the functional and practically usable system for determination of the 3D coordinates of the arbitrary point in the scanned scene (inclusive useful software) are the main aims of this project.
This thesis is aimed on the synthesis of the electronic circuits and chaos theory. The general principles of the chaotic oscillators synthesis using modern analog functional blocks as CCII, CFA CDTA or BOTA are still unpublished topics. The main goal is to discover novel structures of analog oscillators for modeling a given mathematical model of the autonomous and driven deterministic dynamical system. Doing this, the classical circuit synthesis as well as new self-developed approaches can be utilized. The experimental verification of all structures is an essential part of the work. Student can partially focus on practical application of the chaotic systems and associated problems.
The project is focused on systems developed as combination of OFDM and CDMA, their simulation and optimization of key parameters. It is assumed the simulation of these systems in Matlab, evaluation of proper parameters for different transition environments (different channel models) respective optimization of these parameters. In the next stage of solution, it is possible to focus on peak to average power reduction algorithms or on effective FPGA implementation of systems and support algorithm.
Tutor: Fedra Zbyněk, Ing., Ph.D.
Reception of spacecraft signals is characterized by very low Eb/N0 ratio. That is mostly concerned with phase shift keying of a carrier or sub-carrier. Reduced bandwidth is applied for AWGN elimination as the spacecraft distance increases. In this connection there is an interesting problem of instrumental phase noise influence. This problem is not fully studied and is a goal of this project.
The aim of the project is investigation of possibilities to create so called virtual electromagnetic shielded room by eliminating ambients disturbing signals by open-air EMI measurements. The attention will be focused in the theory of individual methods, in development of relevant electronic equipment and in practical techniques to diversify ambient and measured radiation signals. The theme includes the theoretical study of signals, their processing and correlation, PC simulations, and practical experimental verification.
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 behaviour with the changes in enviroment, long term stability etc. will be contained in the research project.
Tutor: Urbanec Tomáš, Ing., Ph.D.
Tutor: Šebesta Vladimír, prof. Ing., CSc.