28 articles in this issue
M.V. Andreyev,V.F. Borulko,?.?. Drobakhin,D.V. Sidorov
The transformations of the form of wave beams falling on periodic and apodized quasiperiodic Bragg reflectors were considered. Spatial apodization of permittivity contrast of multilayer structures can induce significant decrease of the side lobes. This ef... see more
L.M. Logacheva,S.V. Kutsak,V.P. Bondarev,N.Y. Kopyleva
On the basis of the projection method the rigorous solution of the basic wave ?10 diffraction problem on a joint of a regular and non-regular waveguides with a dielectric plate placed parallel to narrow impedance walls is presented. The problem is solved ... see more
Y.V. Chumachenko,V.P. Chumachenko
Application of the domain-product technique (DPT) to scalar scattering problems in planar waveguide transformers with rectangular coupling cavities (e.g. right-angle bends, T-junctions, cross-junctions and the like) yields one-type matrix-operator equatio... see more
S. S. Samoylik,V.P. Bondarev
The paper considers the development of method of integral equations of macroscopic electrodynamics, allowing to strictly solve electrodynamic problems for the resonator structures with an arbitrary number of dielectric non-homogeneities. The structures in... see more
S.N. Romanenko,V.P. Dmitrenko,R.D. Pulov
It is shown analytically that in the regime of full transmission in the interaction of a plane linearly polarized electromagnetic wave with a layer of a metamaterial the thickness of the layer is equal to an integer number of half wavelengths in the mater... see more
A.N. Buhanko
In given article the questions of designing of telecommunication networks, resistant to external influences on the basis of the multicriteria optimization Pareto method are considered. Multicriterion optimization issues and methods based on Pareto conclus... see more
A.P. Zalevsky,D.M. Piza,I.S. Presniak,A.S. Sirenko
The article describes the electronic counter-countermeasures of 36D6 and 80K6 air surveillance radars in jamming and clutter conditions. The algorithm of space-time processing that uses jamming signal cancelling at the first stage and Doppler filtering at... see more
B.A. Mandziy,B.Y. Volochyi,L.D. Ozirkovsky,Zmysnyi ?.?.,O.V. Muliak
A comparision of reliability, which can provide the faulttolerant system with a majority structure, namely: three majority structure embedded in majority structure, majority structure with the reconfiguration of the core structure and majority structure w... see more
Y.V. Ogrenich
The thermal model of plate-finned heat sink is formed and described. The mathematical model of operability domain ellipsoid is created by approximating its borders. The optimization problem of heat sink mass is solved by Lagrange multipliers method. Hyper... see more
N.I. Furmanova,A.Y. Farafonov,S.N. Romanenko,E.N. Shynkarenko,M.V. Mishchenko
A comparative analysis of design programs Microwave Office and HFSS on examples of microstrip filters with slots in the ground plane was performed. The results of numerical modeling of the filters in comparison with experimental data are presented. Microw... see more
G.M. Shylo,I.M. Vesnin,M.P. Gaponenko
Peculiarities of assigning the nominal tolerances for interval distribution law and changing the properties of components in the operation of electronic devices are considered. Interval coefficients of external influences, aging and simultaneous action of... see more
Y.A. Koval,A.A. Kostyria,O.A. Solianik,S.F. Semenov,S.A. Plekhno,H.H. Asaad
In this article some results of comparative analysis of mostly used terrestrial radio signal sources are published. The aim of this observation is to utilize the sources signal as a common signal source in building Time and Frequency Synchronization Syste... see more
A.Y. Anoprienko,S.V. Ivanitsa,Al Rababa Hamza
Emergence the uncertainties and ambiguities in the implementation of complex data in calculations of parameters server computer systems is a factor that justifies the use of methods and means of interval analysis in developing improved methods of key para... see more
V.V. Beskorovainy,E.V. Soboleva
This paper reports the development of a System Dynamics model for the Strategic planning of a municipal service system. The model is capable of handling the critical variables that impact the operations of a delivery scheme. The model was developed using ... see more
O.B. Vovk,N.B. Shakhovska
Received factors can be used in the formation of the factors’ system in studies related to effective use of information products in the information society. The need to study the efficiency of information products is caused by permanent change of existing... see more
O.A. Dmitrieva
Parallel algorithms of modeling of the linear dynamic objects based on the construction of transition operators are offered. The developed algorithms are based on the nested stages schemes and allow one to fulfill an automatic selection of the optimum ste... see more
Y.A. Ivanov
In this paper, we consider a model of the problem to determine the characteristics of the time-step computation process in hard real-time systems. We proposed a formal description of the timestep computation with preemption and its existence conditions. A... see more
I.V. Lysytska,A.A. Nastenko
Symmetric block ciphers differential properties with variousround key operations are considered. It is shown that knownciphers with round operations other than XOR after small initialencryption rounds acquire random substitution properties ofcorrespondent... see more
O.Y. Pshenychnyi
This paper describes the results of research in the field of associative dependencies properties and effective aggregation possibilities. Also it briefly describes the developed method of special class of associative dependencies detection in large data v... see more
S.V. Choporov,S.I. Gomenyuk,A. A. Lisnyak,Y.V. Panasenko
The functional approach is one of the most general approaches in geometrical modeling. The functional approach describes complex geometrical objects (like engines, aircrafts, etc.) using mathematical formulas. A popular method for representation geometric... see more
V.I. Hahanov,Murad Ali Abbas,E.I. Litvinova,I.V. Hahanova
The goal of this article is to improve the quality and reliability of digital systems-on-chips by creating an infrastructure for embedded testing, diagnosis, optimization and repairing through the use of hardware redundancy and reduce the speed of functio... see more
V.V. Romanuke
Solving the matrix 3× N game for combining optimally algorithms of the neuronet learning with identification error measure after the learning time by a volume of the consumed resources A neural network is considered with three interdependent indexes: iden... see more
Y.V. Bodyanskiy,A.I. Dolotov,D.M. Malysheva
Hybrid neural networks based on the idea of combining spiking neural networks and the principles of fuzzy logic are considered. The architecture of self-learning fuzzy spiking neural network based on discrete second-order critically damped response units ... see more
A.A. Grytsenko,I. J. Zelenyova,S.Y. Siroshtan,E.R. Tatolov
Methodology of research of known FSM optimization methods for modern FPGAs is proposed. Such methodology consists of different FSM generation, optimization, synthesis, verification stages and can be implemented using parallel and distributed systems. That... see more
G.P. Kolomoets,D.V. Pashkov
Purpose of the article – to represent the solution of the problem of data aggregation from different systems in a single, Web-based application developed with the use of cross-platform open source software. The paper describes the architecture and impleme... see more
Y.A. Kuznetsov,S.V. Oleynik,D. V. Uspensky,N.E. Khatsko
The way to improve the accuracy of measurements of fiberoptic gyroscope (FOG) OIUS501 production of Russian company «Optolink» is examined. The studies were conducted to assess the use of these sensors to control the orientation of the satellite. The expe... see more
E.M. Potapenko,A.A. Shiyka
This paper represents a robust voltage regulation algorithm for an induction machines that enable minimization of the losses and maximization of torque capability. The maximum torque of an induction machine is limited by the current and voltage constraint... see more