Volodymyr Rusyn

Chernivtsi National University · Department of RadioEngineering and Information Security

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...

In this paper we calculate AQI for PM2.5 and PM10 for measurements obtained over several months, from December 2021 to April 2022. There were several measurement locations divided into urban and rural areas. The results have found that AQI for PM2.5 pollutant consistently had a higher value than AQI for PM10 pollutant, which reflects the fact that...

In this paper, the designed circuit of the non-autonomous chaotic generator that demonstrates nonlinear behavior and nominal values of the electronic components are presented. This circuit consists of one operational amplifier, two diodes, one inductor, one capacitor, four resistors, a symmetrical power source, and a sinusoidal source. Nominal comp...

This study aims to program basic Arduino UNO. First, we create an Arduino simulation circuit to turn on the Light Emitting Diode (LED) in the Proteus software. Next, make Arduino programming for the running LED. Finally, enter the Arduino program into the Arduino circuit on Proteus. This Arduino UNO programming training will be introduced to teache...

Circuit of the non-autonomous two channel chaotic generator that contains two operational amplifiers, four capacitors, two resistors and two sinusoidal voltage sources is presented. Regimes of chaotic behavior was modeled by using NI’s software MultiSim. Analysis of chaotic attractor, time series and spectra are shown. The layout and 3D model of re...

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...

The access control and management system is actually just an “INTELLIGENT LOCK” on your door. Of course, the concept of “lock” may include a mass of devices that block the passage into the room (building, territory, etc.). All these devices in access control systems are referred to as actuators. In this paper, we presented a simple RFID reader for...

In this paper, the designed circuit of the non-autonomous chaotic generator that demonstrate nonlinear behavior and nominal values of the electronic components are presented. This circuit consists from one operational amplifier, two diodes, one inductor, one capacitor, four resistors, symmetrical power source, and sinusoidal source. Nominal compone...

For demonstrate nonlinear behavior we used new one-dimensional modified logistic system. Analysis, equation and system conditions are presented. For analysis of the iteration series with different parameter r and computer modelling was used one of the modern software environment LabView. Programming code and nominal components are also presented. F...

In this paper, we study a three-dimensional Lorenz system that demonstrates chaotic behavior. We present the state equations and mathematical analysis of the system. We use a system-design platform, like LabView, to study and analyze main information properties, such as chaotic attractors, time series, bifurcation diagram, and dynamic behavior of t...

In this paper, the circuit of a non-autonomous generator that realizes chaotic behavior is presented. This oscillator-circuit contains four resistors, one capacitor, one inductor, two diodes, one operational amplifier, one bipolar voltage source and one sinusoidal source. All nominal of components are shown. The proposed circuit was modeled by util...

Circuit realization of the inductance equivalent that contains two operational amplifiers, one capacitor, and four resistors is presented. The mathematical equation that allow convert inductor value to resistance of potentiometer is shown. Computer modeling results of the algorithm for calculate inductance was realized in the modern software LabVie...

In this paper, we present computer modelling and analysis of the chaotic Arneodo system. For demonstrate of these results was used modern software environment LabView. Created programming interface allows to generating, analysis and research of the main information properties of chaotic Arneodo system, focusing on time series of the three chaotic c...

In this paper, we presented a simple autonomous security system. This security system based on the Arduino Uno and fingerprint scanner module. The Arduino was connected to a computer through the USB port and programmed using a language similar to C++. Programming code (sketch) was uploaded into Arduino using program software ArduinoIDE. Connection...

This paper presents computer modeling, analysis and research of the hyper-chaotic Lorenz system based on programming interface that has been developed in LabView software environment. This study allows for generating and research of the main information properties of hyper-chaotic Lorenz system, focusing on time distribution of the four chaotic coo...

In this paper, the Malasoma system based cubic function is presented. This system contains operational amplifiers, resistors, capacitors, multipliers, and voltage sources. The first stage, we analyze the Malasoma model and execute its stability. The phase portraits and bifurcation diagram are used to analyze the dynamic behaviors of the Malasoma mo...

In this paper, the Malasoma system based cubic function is presented. This system contains operational amplifiers, resistors, capacitors, multipliers, and voltage sources. The first stage, we analyze the Malasoma model and execute its stability. The phase portraits and bifurcation diagram are used to analyze the dynamic behaviors of the Malasoma mo...

In this paper, the process of pulse transformation of analog nonlinear signals is presented. For demonstrate of this process we used non-autonomous chaotic generator as a main part that generate nonlinear signals. Components with nominal values and electronic circuit that allows to realization of pulse transformation are presented. This circuit con...

Circuit realization of the generator that demonstrate chaotic behavior is presented. This circuit contains three operational amplifiers, three capacitors, one diode, eight resistors, and one voltage source. The system's behavior was investigated through numerical simulations, by using well-known tools of nonlinear theory, such as phase portrait, ch...

In this paper, we used one-dimensional system that demonstrate chaotic behavior. Equation, analysis and system conditions are presented. Modern software environment LabView was used for analysis of the iteration series with different parameter r. Connection scheme, nominal components and programming code are also presented. For practical realizatio...

The new chaotic generator that consists from two operational amplifiers, one diode, three capacitors and seven resistors is presented. This circuit generate chaotic and controlled oscillations. All nominal components, computer modelling results such as chaotic attractor, time distributions and spectral analysis of the chaotic coordinates are presen...

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...

The modified Chua's circuit that realize chaotic behaviour is presented. This circuit having a simple nonlinear element designed to be accurately piecewise-linear modelled. The circuit was modelled by using MultiSim software environment. System's behaviour is investigated through numerical simulations, by using well-known tools of nonlinear theory,...

In this paper, a new circuit of a generator that realizes chaotic behavior is presented. This oscillator-circuit contains four resistors, two capacitors, one inductor, one diode, one operational amplifier and one voltage source. The proposed circuit was modeled by utilizing NI's MultiSim software environment. The system's behavior was investigated...

The classical Chua’s circuit that realizes chaotic behavior is presented. This circuit having a simple nonlinear element designed to be accurately piecewise-linear modelled. The circuit was modelled by using MultiSim software environment. The system’s behavior is investigated through numerical simulations, by using well-known tools of nonlinear the...

A novel simple autonomous optoelectronic circuit that demonstrate chaotic behavior is presented. In this circuit a lightemitting diode is a simple optoelectronic element. The mathematical model that contain exponential nonlinearity and six terms with two parameters is described by three first-order ordinary differential equations. A great interest...

Introduction. General scientific fields where can be used non-autonomous circuits that realize chaotic behavior and generate chaotic oscillations are presented. Main characteristic about non-autonomous chaotic circuits is described. For modelling, analysis and demonstrate results was selected MultiSim software environment. Modelling of Non-Linear E...

This paper describe about general information and properties of memristor based on Chua’s scheme. The circuit of connection of the memristor to obtain I–V characteristics is presented. Practical realization and research of information properties are also presented. Memristor scheme is one of the main part in modern telecommunication systems of tran...

In this paper realization of modified chaotic circuit of the Van der Pol-Duffing generator is presented. Modeling and research chaotic behavior as a function of a variable control parameter. The differential equations has been realized using commonly available op amps and the nonlinearity using diodes. The experiments indicate that chaotic behavior...

This paper presents modeling, analysis and research of chaotic Rucklidge system based on programming interface that has been developed in LabView software environment. This study allows for generating and researching the main properties of chaotic Rucklidge system, focusing on time distribution of three chaotic coordinates and phase portraits. A ra...

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...

In this paper one of the simplest chaotic circuits is presented. The circuit was modeling by using MultiSim software environment. System's behavior is investigated through numerical simulations, by using well-known tools of nonlinear theory, such as phase portrait, bifurcation diagram, Lyapunov exponents and Kaplan-Yorke dimension. Submitted by cha...

Introduction. General scientific fields where can be used circuits that realize chaotic behavior and generate chaotic oscillations are presented.Methods for control of chaotic oscillations are also presented. For modelling, analysis and demonstrate results was selected MultiSim software environment. Modelling and Analysis of Non-Linear Element. Thi...

The study of nonlinear systems is an important research topic for scientists and researchers. Memristor, for a long time, it remained just as a theoretical element and rarely appeared in the literature because of having no simple and practical realization. In this paper, we reviewed the theoretical substantiation of the memristor and conducted a pr...

Considered duopoly Cournot model, which allows analyze the different possible behavior strategies of each of the market participants. Detected conditions of the market equilibrium under which the income of both market participants-maximum. Also consider getting one duopolist additional revenue, on the condition that another go with the market. The...

We report on complex magnetization dynamics in a forced spin valve oscillator subjected to a varying magnetic field and a constant spin-polarized current. The transition from periodic to chaotic magnetic motion was illustrated with bifurcation diagrams and Hausdorff dimension – the methods developed for dissipative self-organizing systems. It was s...

Since mathematical models describing the work of transmitting-receiving units of modern chaotic information systems have become more complex, modeling of information properties of deterministic chaos is becoming more topical. The paper presents the results of a wide range of works related to the modeling of dynamic chaos usage in modern telecommuni...

Introduction. In this paper is presented a theoretical basis of multi-scroll chaotic attractors. Modeling of Chaotic Multi-Scroll Jerk System in LabView. Submitted programming interface that has been developed in LabView software environment. It allows generating and researching chaotic multi-scroll Jerk system. Submitted by time distribution of th...

Introduction. In this paper is presented a theoretical basis of chaotic Rossler system. Modelling of Chaotic Rossler System in LabView. Submitted programming interface that has been developed in LabView software environment. It allows generating and researching chaotic Rossler system. Submitted by time distribution of three chaotic coordinates and...

Since mathematical models describing the work of transmitting-receiving units of modern chaotic information systems have become more complex, modeling of information properties of deterministic chaos is becoming more topical. The paper presents the results of a wide range of works related to the modeling of dynamic chaos usage in modern telecommuni...

In this paper a modeling cubic nonlinear element using MultiSim is proposed. Experimental scheme and modeling results are shown.

In this paper proposed a modified experimental control of hyperchaotic oscillations using threshold method. Shows an experimental scheme for control of hyperchaotic oscillations.