Oleksandr Hres

Oleksandr Hres
Yuriy Fedkovych Chernivtsi National University · Department of Radio Engineering and Information Security

PhD of Engineering

About

9
Publications
765
Reads
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13
Citations
Citations since 2017
8 Research Items
11 Citations
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Publications

Publications (9)
Article
Full-text available
The most important indicators of the effectiveness of content protection systems are indicators of the achieved security level, i.e. functional properties of security. These indicators are: confidentiality, integrity, availability. Each of the indicators of the functional properties of content security is distributed according to the methods of ens...
Article
Full-text available
The safety of unmanned aerial vehicle (UAV) flights depends on many factors, such as the absence of failures or malfunctions of aviation equipment, the absence of exposure to adverse environmental phenomena, and the absence of errors by the aircraft crew and engineering personnel. In uncontrolled airspace by the internal affairs authorities, when t...
Article
Full-text available
The conditions of ensuring electromagnetic compatibility of radio electronic means of mobile radio service have been analyzed. The stages of such analysis are outlined and a list of measures to be taken at each stage is given. The types of scenarios (paired, group) of interfering radio electronic means of mobile radio service are described. The tec...
Article
Full-text available
Introduction. The study of physical properties of substances using pulsed electromagnetic radiation has become widespread in optical and radio wave spectroscopy. Pulsed Fourier spectroscopy of nuclear quadruple resonance (NQR) is based on powerful radio frequency excitation pulses and the use of highly sensitive equipment. In response to the short...
Article
Analysis of existing experimental methods for observing nuclear quadrupole resonance in the frequency range from 2 to 1000 MHz showed that it is promising to develop inexpensive portable spectrometers based on new information transformation algorithms of the free induction decay signal in the transmit-receive path and spectral imaging. The developm...
Article
Full-text available
An audio information transmitting system, encrypted by chaotic sequences, which are generated on the base of discrete one-dimensional mappings is described in the article. The operation of the system is considered on the example of the information transmission between two computers. Streszczenie. W artykule opisano system transmisji informacji audi...

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Projects

Project (1)
Project
Purpose – hardware and software implementation of electronic equipment for remote detection of low concentrations of narcotic and explosive substances by nuclear quadrupole resonance