The paper presents IGBT switch off process in order to reduce power loss in the structure. The soft switching method using switch-off after current reduction is used. Process mentioned above is optimized to minimize the power loss that is determined…

This article deals with economical evaluation of GSM Gate, installed in Private telecom Network of University of Žilina. In present time, there is only one Gate installed in the Campus network Veľký diel. From the comparison of revenues can be…

Present time situation in the field of disturbing telecommunication devices is described in the preliminary chapters. The focus of the article is the description and results of the measurement of commutation demonstration on telecommunication devices with both measuring the emissions…

The paper describes foundamentals of information approach to safety analysis of signalling systems on a particular example. Bayesian network is applicable apparatus for safety analysis by using information approach. Advantages of using bayesian networks to safety analysis of signalling systems…

Adaptation methods are the main tool for transmission rate maximization through the mobile channel and today the great attention is directed to them not only in theoretical domain but in standardization process, too. The review of adaptation methods for system…

The article deals with main tends of scientific research activities of Department of Control and Information Systems at the Faculty of Electrical Engineering of University of Zilina and its perspectives in this area.

This article describes authors designed method then enables mathematic – graphical formalization of system’s functional specification. The result of this method is algebraic system – finite automata that is written in transition table. This transition table is possible to overwrite…

The paper deals with two exact mathematical models of study: A borrowed model with constant intensity of study and amodel with variable intensity of study derived by the authors are presented using data acquired in real pedagogical research. Thebounding of…

In this article we deal with a problem of wavelength conversion in WDM networks and with the wavelength conversion impact on throughput of network. The throughput of networks is determined in terms of blocking probability. The optical networks can be…

Results of an experimental investigation of optical field record created by photorefractive effect in iron doped LiNbO3, is presented in the paper. According to time dependences of record amplitude obtained at different intensities of recorded field it was shown that…