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Original title in Czech: TeleinformatikaFEKTAbbreviation: PP-TLIAcad. year: 2013/2014
Programme: Electrical Engineering and Communication
Length of Study: 4 years
Profile
The aim of the studies is to prepare top-class scientific personalities that will be able to provide solution to challenging problems of science and technology in the field of information technologies in telecommunications. Another aim is to teach graduates the methods of scientific work, to make their knowledge of higher mathematics and physics more profound, and to furnish students with theoretical, experimental and practical knowledge from the field of teleinformatics.
Key learning outcomes
Graduates of doctoral studies in the field of teleinformatics are fit to work as scientific and research workers in the development, design and operation departments of research and development institutes, and telecommunications companies, where they can make full creative use of their knowledge and skills. The graduate is capable of solving independently sophisticated problems of science and technology in the field of teleinformatics. In view of the scope of his theoretical education the graduate is capable of adapting to practice requirements in both fundamental and applied research.
Occupational profiles of graduates with examples
This field of study focuses on the science education of doctoral students with profound theoretical foundations in converging communication and in formation technologies. The main part of the study includes course in theoretical informatics and telecommunication technology. In the area of teleinformatics the student has much knowledge of communication and information technologies, data transmissions and their security, inclusive of using and designing the related software. He is well versed in operating systems, computer languages, database systems, distributed applications and the like. He can cope with the algorithmization of tasks on a high level and can propose new technological solutions of telecommunication devices, information systems and support services.
Guarantor
prof. Ing. Zdeněk Smékal, CSc.
Issued topics of Doctoral Study Program
The studying of the properties of sound intensity probe, which is also used for localization of sound source, will be first step. The research of the adaptive noise cancellation (ANC) algorithm used in two-channel speech enhancement systems will be the next step. The purpose is to design and test a new adaptive algorithm, which partially utilizing the directional properties of the sound intensity probe for speech quality enhancement.
Tutor: Sysel Petr, doc. Ing., Ph.D.
Multitone modulations are today frequently used modulation techniques, e.g. in ADSL, VDSL, PLC, WLAN IEEE 802.11a, g, n technologies. In all the above mentioned systems the known and well described modulation DMT (Discrete MultiTone) or OFDM (Orthogonal Frequency Division Multiplexing) is used. The goal will be to optimize existing and to design, simulate, implement and test new alternative modulation techniques based on multicarrier modulation.
Tutor: Šilhavý Pavel, doc. Ing., Ph.D.
The thesis is focused on analysis of data communication and data secure for controlling and supervision in energy network. The dissertation will be solve the optimatization data networks with limited resources. It will also be necessary to make a critical evaluation of applicable algorithms for secure communication in these networks.
Tutor: Mišurec Jiří, prof. Ing., CSc.
The scope of the Ph.D. thesis is the analysis of current state and the prediction of service data flow profile progress in modern mobile networks, both in current and in future ones. The goal of the research will be the design of effective methods how to benchmark mobile network performance regarding to the effective location of bottlenecks on the subscriber data flow paths.
Tutor: Novotný Vít, doc. Ing., Ph.D.
Handwritten text, which is written by patients with neurological diseases (Parkinson's disease, Alzheimer's disease, etc.), contains a number of differences from the written expression of healthy humans. When the patients perform a variety of writing exercises (drawing Archimedes spiral, drawing numbers, etc.) their hands have reduced controllability that is manifested by tremors, irregular and intermittent movements. It is also possible to analyze not only the movement of pen on the tablet but also the movement of the hand at a time when the pen tip does not affect the tablet. The PhD thesis should apply the methods of digital signal processing and mathematical statistics to analyze handwritten text and design a semi-automatic method to detect symptoms of neurological diseases.
Tutor: Smékal Zdeněk, prof. Ing., CSc.
The scope of the Ph.D. thesis is the study and consecutive analysis of control messages (signalling) both in experimental and in real mobile networks, research of causes of unsuccessful procedures and the design of techniques for maximum level of automation for setting up of mobile network parameters regarding to the current service profile of mobile subscribers.
The thesis will be focused on analyses of speech signal with wrong pronunciation and on automatic detection of wrong pronunciation in speech. An analysis of particular pronunciation defects and their influence on speech parameters will be part of the work.
The aim of the thesis is to find mathematical methods and algorithms in the field of signal processing to analyze large volumes of data in real-time. Currently, the increasingly emerging wireless sensor networks in fields of industriy (healthcare, transportation, security/surviliance, power/energy, etc.). These networks produce a huge amount of data in real time and must be evaluated immediately without storing these data. The challenge will be to use artificial intelligence techniques in order to design methods, which will be able to analyze large volumes of data in real time and show competitive advantage of these methods.
Tutor: Burget Radim, doc. Ing., Ph.D.
The research will deal with an analysis of the influence of networking devices and transmission paths on the communication latency in IP networks. The goal will be a proposal of possible methods for the communication latency prediction without a direct communication between IP stations. Latency prediction is mainly used in distributed networking applications. An experimental large-scale network PlanetLab (www.planet-lab.org) will be used for the research.
Tutor: Komosný Dan, prof. Ing., Ph.D.
The aim of the dissertation is to propose a method based on genetic programming, which will be able to automatically optimize a selected group of problems. Currently, there are plenty of problems in many areas of industry (health, transport, security, energy, etc.), where exponential or even factorial growth of the state space expansion occures for possible solutions. At the same time, only a small sub-group of the search space gives correct semantic meaning. In this field, special methods of genetic programming seems very promising. The task is to utilize theory of genetic programming for design of algorithms and methods, which can automatically solve complex problems in the specified area and to show the competitive advantage of the proposed solution on a real-world problem.
The work is focused on the design of A/D and D/A converters working in the current mode. The aim is to design a suitable structure of number-current and current-number converters without internal current-voltage and voltage-current conversions with respect to enhancing the bandwidth in comparison with converters working in the voltage mode. Part of the work is also the design and analysis of current-mode antialiasing filters. The design will start from unconventional circuit element structures such as current conveyors (CCI, CCII, CCIII) with simple or floating output, current feedback amplifiers (CFA) or transconductance amplifiers (OTA, BOTA, DBTA). Requirements to be met by the candidate: the knowledge of circuit theory and simulation programs (MicroCap, PSpice).
Tutor: Lattenberg Ivo, doc. Ing., Ph.D.
The topic deals with modern cryptographic methods for the privacy and digital identity protection. The research will be conducted in the fields of modern cryptographic protocols and their design. The main focus will be put on anonymous routing protocols, modern authentication protocols and proof systems. The goal is to design novel cryptographic systems for the protection against digital identity thefts and unauthorized private information leak. For this goal, the mechanisms of provable security and modular cryptographic system construction will be used. The student will be included to the existing research team and will participate on research projects in related fields.
Tutor: Zeman Václav, doc. Ing., Ph.D.
Telematic systems are particularly common in transport. Research into telematic systems based on the Internet protocol will be focused on the design of sophisticated, i.e. well-considered, formally well-developed and complicated methods that use IP systems in various areas. Surveillance and protection systems, systems of paying the fare, information systems and interactive applications, etc. are supposed in particular. Localization by GPS, vehicle diagnostics, and vehicle monitoring on ortho-maps in real situations are in the focus. Sophisticated telematic systems will be software simulated, optimized and subsequently hardware realized in the form of functional specimens.
Tutor: Škorpil Vladislav, doc. Ing., CSc.
The thesis is focused on research of novel realizations of frequency filters, oscillators, synthetic inductors, etc. The aim is to design a low-voltage and low-power applications based on functional blocks employing minimal number of transistors that work in frequency range tens of MHz. The workability of proposed circuits will be proved by SPICE simulations and/or via experiments.
Tutor: Herencsár Norbert, doc. Ing., Ph.D.
The aim is to create an effective strategy for the use of the public and private IP network for crisis management. Also propose such a network, which could have the capacity, but also in terms of resistance to ensure the crisis communication. This would, in particular, traffic data, voice, TV broadcast. Other parts would propose new methods of Internet communication management-manage the flows of information, etc. Research should include also the influence of network topology on its stability and security, the speed of the spread of viruses, ability to resist attacks, etc. One of the objectives is to design a software robot that will be able to monitor the network topology, where appropriate, the Internet, the aim is to design a system for exchanging files over the Internet, but without any central control. The system would be intuitively usable. The solution should be safe and allow anonymous of the sender and the recipient of the data. The final. design of highly durable network suitable for crisis situations and this proposal prove theory.
Communication techniques providing emergency calls have to locate the caller in cases when they are not allowed or able to provide it themselves. The current issue of the communication techniques based on the IP protocol is that the location of the caller is not estimated with the required accuracy. A possible solution to locate an IP node is to use the methods based on a measurement of the communication parameters. An experimental large-scale network PlanetLab (www.planet-lab.org) will be used for the research.
The work is focused on the feature analysis of current-mode electronic frequency filters. The aim is to design algoritmizable methods that lead to finding features of filters generally defined by the schematic. It will be necessary to evaluate the available feature ranges, e.g. quality, pass-band current transfer, dynamic range within a defined supply voltage, sensitivity, etc. In the case of finding the quality range, the point is to find the extremes of a multi-variable non-linear function. Mathematical tools (e.g. Maple or MathCAD) will first be used for this purpose; afterwards the algorithm itself will be designed. Requirements to be met by the candidate: algorithm thinking, the knowledge of computer programming and circuit theory.
The aim is to find transformation two-ports for synthetic elements with higher-order immittances while employing active elements such as operational voltage or current amplifiers, voltage followers, current elements, current or voltage conveyors, OTA amplifiers, etc. Based on this knowledge, circuits of most diverse types of frequency filters of the 2nd or higher order as well as precise dc filters will be developed.
Tutor: Vrba Kamil, prof. Ing., CSc.
The thesis is focused on research of new fully-differential and single-ended analogue structures with minimum transistor number. The goal is to design solutions (frequency filters, oscillators, etc.) with high-frequency operational frequencies in band over 100 MHz. The workability of designed solutions will be confirmed by simulations and/or by experimental measurements.
Tutor: Jeřábek Jan, doc. Ing., Ph.D.
Lightweight cryptography deals with the construction of cryptosystems for devices with limited computational capabilities (e.g. RFID chips). These cryptosystems are not sufficiently resistant to attackers who are equipped with considerable resources; however, they should be sufficiently resistant to expected attackers, i.e. attackers with limited capabilities. First, the state of the art and perspectives of lightweight cryptography needs to be analyzed. The final aim of the dissertation thesis is a well-founded proposal of suitable sets of cryptography primitives for common applications of devices with limited computational capabilities (e.g. sensor networks).
Tutor: Burda Karel, doc. Ing., CSc.
To the scientific audience, more often new active elements are presented that have the aim to supplement classical operational amplifier. Therefore, the goal of the work is deeper analysis and own computer aided design of mainly linear functional blocks with new currently presented active elements. Based on these application possibility analyses the aim of the work is the design of own active elements, that indeed will have the potential to supplement the operational amplifier in high-frequency applications.
Tutor: Koton Jaroslav, prof. Ing., Ph.D.
Nowadays, significant emphasis is placed on guaranteeing Key Performance Indicators (KPI) for different types of network services. Ensuring the required KPI is obviously much more difficult in the case of using low-capacity wireless links characteristic with high latency. This type of lines is still the only possible means of communication the number of places. The aim of the thesi is to propose a solution that will guarantee effective qualitative requirements, such as minimum delay or quality of the information transmitted. The proposed solution will include mechanisms for monitoring the dynamic lines of communication, which will make it possible to optimize the processing of the transmitted information based on the current state of the line. The aim of such a solution is to meet established quality standards and KPIs of the service. In order to propose such an architecture, it will be necessary to thoroughly investigate the current state of knowledge in the area of qualitative and quantitative characteristics of services and optimize network traffic. The proper behavior of the proposed methodology will be verified in the simulation environment, eventually, even in laboratory conditions.
Wireless network without a fixed infrastructure - MANET (Mobile Adhoc NETwork) are currently very promising means of communication, especially in places where it is impossible or uneconomic to build wired network with fixed topology. With the development of networks such as MANET, however, is also growing user requirements for transmission quality in these networks. From this perspective, it is therefore crucial to ensure the required quality of service (QoS) workloads, which is already operating principle of MANET networks much more difficult task than in the case of conventional wireless networks. The aim of this dissertation is the design of methodology, which allows a uniform method of providing QoS in MANET networks. This solution will include mechanisms for monitoring and prediction of network traffic and the actual parameters of each communication lines. Expert information obtained from the analysis of network traffic will be simultaneously used for the calculation of the adaptive metrics for different types of services. To achieve this it will be necessary to perform detailed analysis of current solutions and quality of service in MANET networks and algorithms used for the analysis and prediction of network traffic. Wireless mobile nodes are in most cases limited by power supply, therefore, the proposed solution must also take into account this fact. The correct behavior of the proposed methodology will be verified in the simulation environment, eventually, in the real conditions.
The goal of Ph.D. thesis is the research of current methods for mobile network performance assessment, their critical evaluation from the point of view of how difficult and costly the measurements are, and the design of new methods that utilize data obtained by data flow analysis from common subscribers. The design of new key performance indicators that reflects current demands on mobile networks and the design of algorithms how to calculate them are additional goals of the thesis
The theme is focused on modeling channel PLC technology used in Smart Grid networks. PLC channel modeling technology is especially important to test various scenarios Smart Grid networks. Modeling also allows to determine capacity requirements for routing and allowing a better understanding of the communication parameters necessary for the wider use of this technology.
Access control systems are becoming more complex. Modern technologies offer new authentication methods, new criteria of access control are required (e.g. space coordinates of a person), more entities are involved in access control (supplicant, authenticator, controller), and individual access control transactions are concatenated (e.g. access to an asset is conditional on the acquisition of another asset). The present access control systems do not provide for these possibilities and demands. First, the state of the art and perspectives of access control systems need to be analyzed in the dissertation thesis. The final aim of the dissertation thesis is to design a universal protocol for access control that would be usable for arbitrary authentication methods, for arbitrary access control systems (e.g. access control of persons to data, rooms or accounts) and which would allow realizing arbitrarily complex access transactions (e.g. payment transactions).
The thesis is focused on research of novel active elements with electronically controllable parameters that are designed for circuit synthesis. Possibility of control of gain or other parameter, input or output impedance for instance, is required. These internal parameters should be controlled by external voltage or current. First goal of this work is the design of novel elements matching these requirements. Second goal of this thesis is design of novel filtering structures, oscillators or function generators employing designed active elements or suitable active elements that were already described in literature. All designed structures have to use controllability of active element for frequency adjusting, gain control etc. The workability of designed solutions will be confirmed by simulations and also by experimental measurements.
The study would focus mainly on novel and modern methods of spectral analysis in real time, with applications such as the diagnosis of faults in meteriálech (for instance, a crack in the airplane wing).
Tutor: Rajmic Pavel, prof. Mgr., Ph.D.
The work will be focused on the research of sound field rendering in horizontal plane and 3D space using the wavefield synthesis, ambisonics, SIRR (Spatial Impulse Response Rendering) and DirAC (Directional Audio Coding) and on their practical aspects (real reproduction devices). Part of the solution will be comparison of these methods regarding reproduction fidelity, computing demands, etc. and also finding of utilization of these methods for audio signal auralization.
Tutor: Schimmel Jiří, doc. Ing., Ph.D.
The vulnerability of the IEEE 802.11, attacks on the security methods and the methods for its effectiveness. Wireless network security issues expected standards IEEE 802.11. A detailed introduction to these standards, describe the various types of wireless security, including their properties and the subsequent theoretical analysis. The implementation of the attacks on the various methods of modern security algorithms, emphasis will be placed on the identification of weaknesses of 802.11 protocols. On the basis of the findings will be designed and tested security more effective. Attention will be paid to the security quality of service QoS in 802.11 networks. The network will be subject to examination by appropriate programs and simulators (Opnet Modeler, NS2). Will also be examined according to modern services (IP phones, the transmission of video, voice, multimedia) to delay and to be performed, including an overall analysis to the QoS optimization.
Dissertation will focus on the development of methods of image data obtained by magnetic-resonance imaging in small animal models. The analysis will focus on the resolution of tissues and their changes with the use of multiple image contrasts. The issue involves the measurement of image data processing statistical methods and creating mathematical models for data analysis. The prerequisite is an interest and ability to perform analysis, orientation programming and monitoring trends in the given field.
Tutor: Bartušek Karel, prof. Ing., DrSc.
The theme is focused on processing of static, dynamic or three-dimensional images produced by different medical acquisition techniques, namely the output of the sonographic examination, body slices acquisition using the magnetic resonance etc. The goal is to improve properties of single images, their segmentation, 2D object recognition, quantification of different object parameters, their dynamic or spatial analysis, or eventual 3D model reconstruction. The main result of the work will be a proposal of a novel method being utilizable for solving of concrete diagnostic problems in cooperation with doctors.
Tutor: Říha Kamil, doc. Ing., Ph.D.
The thesis is focused on research and optimalization of analog circuit structures (frequency filters, oscillators, synthetic inductors, etc.) only on transistor level. The aim is to design a low-voltage and low-power applications by using of influences of transistor parasitics that work in frequency range tens of MHz. The workability of proposed circuits will be proved by SPICE simulations and/or via experiments.
The aim of the study is to optimize the routing principles. The architecture of network element with priority routing will be designed. An original procedure will be proposed for modelling this problematic mathematically and also for implementing the mathematical model. The software simulation of a system that can be used to control the switching field designed for switching data units shall be extended with hardware implementation, e.g. via programmable logic fields of development system FPGA. The knowledge obtained will be generalized and related to the theory of high-speed network elements. The MATLAB program and Simulink and the VHDL and Visual C++ language in particular are expected to be used in software simulation.
The paper will deal with the optimization services in FTTx optical networks, from the perspective of "Triple Play" (Triple Play - data, video and audio) and other available services (Video on Demand, CATV, IPTV, etc.). Each of these services has requirements for bandwidth, jitter, delay, etc., it is necessary to design and optimize the transmission of individual services and provide for their future deployment in emerging FTTx networks.
Tutor: Filka Miloslav, prof. Ing., CSc.
The thesis will be concerned with the design of methods for sensing, processing and interpretation of the low-level signals acquired by nuclear quadrupole resonance. The main objective will be design and realization of the measurement chain.
Tutor: Gescheidtová Eva, prof. Ing., CSc.
The thesis will be concerned with the design of reconstruction methods of low-level signals acquired by sensors based on electromagnetic or another principle. The main objective will be signal deconvolution, noise and another adverse artifacts, increase of accuracy and exploitability.
Routing policies in IP networks negatively influence the communication parameters. The research will deal with a study of the IP routing influence on the communication latency and other communication parameters. The goal will be a proposal of possible methods for the minimization of such negative influences. An experimental large-scale network PlanetLab (www.planet-lab.org) will be used for the research.
The goal of PhD study is the research of the influence of ambient conditions like temperature, pressure, mechanical vibrations on transmission characteristics of optical fibres, and the design of suitable methods and techniques of optical fibre usage as sensors of various physical quantities.
The work will be focused on research into softswitch incorporation into converged NGN networks. One of the goals will to link softswitches with the existing SS7 TDM network through the IP network. The goal will be to design, implement and test the protocol solution. Based on this groundwork the new approaches to solving these signalling systems will be introduced. Individual approaches will be tested in practical realizations.
Parkinson's disease is manifested by increasing of noise and hoarseness in speech utterance, monotone prosody and irregular speech rate. The aim of this thesis is to find significant attributes, their optimal selection and a design of the new method for automatic detection and monitoring of Parkinson's disease symptoms.
The fundamental frequency is the one of the important parameters of the speech signal. Its estimation is due to the nonstationary of speech signal quite difficult. Empirical mode decomposition is an advanced method for analyzing nonstationary signals based on signal decomposition into intrinsic mode functions adapted to the base signal content. The instantaneous frequency, among other parameters, can be determine using the Hilbert transform. The content of the dissertation research will be research of the basic method of detection frequency tone and its comparison with other known methods.
Based on the study of solutions to symmetrical passive frequency filters and filter circuits using operational amplifiers with symmetrical output, the theses should propose new filter circuits with active elements such as fully differential operational amplifiers, fully differential OTA amplifiers, differential current amplifiers, differential transimpedance amplifiers, etc. Particular focus will be on new applications of a new integrated current amplifier with programmable current gain. Part of the solution will be simulations of properties using computer methods, and experimental verification of the circuits proposed.
Specific points of face are necessary find in teleroentgen photography. There points are suitable for computing of design tratment for orthodontics. The file of rtg photogrphy is available for testing. The produce is method for exatly determination points of interest for automatic processing cephalometric analyses.
It is possible to exploit signal sparsity for speeding up the measurement process in magnetic resonance imaging. The doctoral study would focus on developing and optimizing novel sparsity-based techniques.
This recent area of research is based on the assumption that the observed signal is sparse with respect to a basis (i.e. it has only several non-zero coefficients). This assumption is usually met in the case of real images, but also locally in audio, so sparsity-based modern methods (compressed sensing, inpainting, denoising, deblurring and others) are advantageously used.