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.

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.

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.

prof. Ing. Zdeněk Smékal, CSc.

1. Adaptive speech enhancement using sound intensive probe

   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.

   Supervisor: Sysel Petr, doc. Ing., Ph.D.

2. Automatic detection of wrong pronunciation

   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.

   Supervisor: Sysel Petr, doc. Ing., Ph.D.

3. Broadband data communication systems over metallic lines

   The topic is focused on broadband data communication systems over metallic lines, based on technologies using multi-carrier modulation technique (DMT, OFDM,...), like xDSL and Power Line Communication (PLC) systems.

   Supervisor: Zeman Václav, doc. Ing., Ph.D.

4. Completing missing samples in audio using modern techniques

   The need to complete the missing segment of an audio signal is an interesting task with the practical use (restoration of recordings, dropouts in VoIP calls, etc.). Current methods are capable of high quality interpolation of signals that are stationary in the vicinity of the missing section and have harmonic character. The study would focus on improving these methods by advanced signal processing approaches. Psyhcoacoustic viewpoint of the problem should be covered as well.

   Supervisor: Rajmic Pavel, prof. Mgr., Ph.D.

5. Converters for mutual A/D and D/A conversions working in the current mode

   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).

   Supervisor: Lattenberg Ivo, doc. Ing., Ph.D.

6. Design of Modern IP Sophisticated Telematic Systems in Transport

   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. Communication between two cars without a driver intervention, collision avoidance, information transmission about traffic from the places cars left are expected. A highly accurate navigation system based on Galileo system (GNSS) for controlling functional blocks of cars are considered.

   Supervisor: Škorpil Vladislav, doc. Ing., CSc.

7. Emergency Communication in IP Networks

   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 voice transmission based on the IP protocol is that the location of the caller is not estimated with the required accuracy. The student will deal with an analysis of the current approaches of VoIP users' location. Using the gained knowledge, possible solutions to improve the VoIP users' location will be proposed.

   Supervisor: Komosný Dan, prof. Ing., Ph.D.

8. Feature analysis of current-mode electronic frequency filters

   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.

   Supervisor: Lattenberg Ivo, doc. Ing., Ph.D.

9. Modern electronic security systems

   The goal of the dissertation thesis is the design of protocols and interfaces which allow deployment of modern communication systems that would allow a collective transmission of detection and control information and that would also enable a deployment of modern sensors.

   Supervisor: Burda Karel, doc. Ing., CSc.

10. More Effective security of networks with IEEE 802.11 Standard

    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.

    Supervisor: Škorpil Vladislav, doc. Ing., CSc.

11. Novel methods of biological signals extraction from medical images

    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.

    Supervisor: Říha Kamil, prof. Ing., Ph.D.

12. Novel methods of incomplete spatial information analysis in digital images

    The theme is focused on the research of novel methods for analysis of incomplete spatial information captured in digital images. These source data can be represented by temporal or spatial sequences eventually by a single image whereas the analysis should result from a given scene geometry.

    Supervisor: Říha Kamil, prof. Ing., Ph.D.

13. Optimization of Routing Principles in High-speed Converged Networks

    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.

    Supervisor: Škorpil Vladislav, doc. Ing., CSc.

14. Side Channel Cryptanalysis

    The topic is focused on the description of cryptographic modules and on the research of the influence of side channels on the security of these modules.

    Supervisor: Zeman Václav, doc. Ing., Ph.D.

15. Speech pitch determination based on empirical mode decomposition

    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.

    Supervisor: Sysel Petr, doc. Ing., Ph.D.

16. The Development of Algorithms for the Management of Queues

    Active network elements now use for the management of queues and control of switching a series of powerful algorithms. The task is to implement selected algorithms of queues management into the development system equipped with an FPGA card, instrument performance and develop a custom algorithm that addresses the development of the management of queues in the respect of the standard of marking used for QoS solutions. The resolution will be the knowledge of languages C and VHDL, Matlab, or Verilog.

    Supervisor: Škorpil Vladislav, doc. Ing., CSc.

17. Utilization of RC Elements with Distributed Parameters in Electrical Circuits, Fractal Circuits

    The topic aims at the research into utilization of resistive-capacitive elements with distributed parameters (RC-EDP) in electrical circuits especially with modern active elements (conveyors, current amplifiers etc.). In particular it will include design of so-called fractal circuits which have non-integer order of transfer or immittance function and which can be implemented by RC-EDP. It is expected proposing new frequency filters, oscillators, synthetic immittance elements and other circuits. The aim will be improving properties compared to existing circuits (reducing dimensions, increasing response speed, decreasing power consumption etc.) and moreover obtaining characteristics that cannot be realized by classical elements or only at the cost of using complex structures.

    Supervisor: Kubánek David, doc. Ing., Ph.D.

18. Utilization of sparse signal representations for their processing

    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.

    Supervisor: Rajmic Pavel, prof. Mgr., Ph.D.