O.I. Atakishchev

Metagrammars and Particularities in their Application to Formal Description of Signals and Protocols
 (Application of Metagrammars for Recognizing Signals and Protocols of Document Communication)

Principal particularities are considered for application of apparatus of metagrammars theory to formal standard description of signals and protocols being rcognized. Elements are described of metagrammars that specify syntactic structure of signals of digital documental messages being transmitted in data transmission network with switching of channels and batches as well as in switched telephonic general-use networks with application of standard systems of the telematic ptorocols.

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E.Yu. Musakin, O.I. Atakishchev, and B.V. Klyujkov

Application of Grammars with B-Controlled Precursor for Solving the Problems of Structural and Linguistic Signal Recognition in Synchronous Digital Hierarchy

The new class of the formal grammars with B-controlled precursor providing for structural and linguistic description of signals of synchronous digital hierarchy is proposed. The algorithm for syntax analysis of the administrative unit AU group is developed.

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S.V. Grebenev, I.A. Drozdov, and Yu.A. Rodin

Problem of Structural Synthesis of a Public Data Network

A problem is considered of a dynamic structural synthesis of evolving data-transmission networks at a prescribed initial structure, the forecast of the abonents' demand for an information interchange at each stage of the development of the structure being taken into account. An algorithm is suggested of the synthesis of an subscriber network with arbitrary number of concentration levels. Such an approach can be used when modernizing the corporative data networks with the aim to increase the efficiency of the network functionally and to expand the services of the communication.

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Sh.M. Chabdarov, Z.G. Zakirov, A.F. Nadeev, R.R. Fajzullin, and A.E. Egorov

Synthesis of a Generalized Algorithm of Resolution of Fluctuating Multielement Signal Based on the Markovian-Mixed Stochastic Models

The problem of synthesis of a generalized algorithm of the multielement signal resolution is solved on the basis of the Markovian-mixed poly Gaussian stochastic model. The canonical structure of the discrimination algorithm is obtained. The key attribute of this structure is the combination of properties of inherent parallelism and recurrence.

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N.A. Savenkov, M.V Medvedeva, and V.A. Koloskov

Algorithm of Adaptive Routing in Multicontroller with Reproducible Program of Behaviour
The algorithm of adaptive routing in the multicontroller with a reproducible program of behaviour is under consideration. The cellular algorithms and results of studies on the self-organization and routing in a multicontroller are given.

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A.N. Zbinyakov, I.S. Zakharov, V.S. Titov, and K.F. Slesarchik

Method of Monitoring the State of Communication Channels During Information Transmission

The approach to controlling impedance of communication channels used during information transmission in data processing networks is suggested.

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A.I. Panychev and P.A. Solomakhin

Model of Base-Station Antenna for Cellular System

A model is considered of a nondirectional antenna with the isotropic pattern in horizontal plane. The antenna constitutes a circular array of half-wave dipoles inclined in vertical plane and having common cylindrical reflector. The influence is studied of the main geometric parameters of the system, on patterns in horizontal and vertical planes.

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A.A. Golovkov and D.V. Fedorchuk

Synthesis and Analysis of Reactive and Resistive Manipulators of the Attenuation Function

The algorithms for synthesis and analysis of the amplitude-and-phase manipulators of the feed forward signal have been developed. The main double relations between elements in the matrices serving for transmission of uncontrolled part of resistive and reactive manipulators are determined. The formulae used in calculations of simplest circuit parameters providing the required relation between the modules and the phase difference of their attenuation function in two states of the controlled element are obtained.

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A.P. Preobrazhenskiy

Radar Characteristic Prediction for Objects Having Radio-Absorbing Coatings over a Wavelength Range

Based on experimental initial data about scattering properties of an object the possibility is considered for radar characteristic prediction of objects having radio-absorbing coatings over a wavelength range.

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S.S. Garmatyuk and V.G. Sharvarko

Experimental Research of Quarter-Wave Rod Antennas

The meter of resonance frequency and input resistance of quarter-wave rod antennas is described. The dependence of resonance length and input resistance of antennas on the length and diameter of vibrators, dimensions of a counterpoise and presence of neighboring objects is investigated experimentally over the range of 80…250MHz.

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E.F. Korenev and A.M. Tsyrlov

Diagnostic Electric and Thermal Burn in of Driver Microcircuits under Controlled Self-Heating

Employment of microcircuits of drivers in the power units of automatics and electric engineering requires a strict observance of operating conditions to avoid the failure of microcircuits in the case of exceeding the admissible dissipated power. The self-heating of microcircuits provoked by the increased load makes it possible to control their parameters under corresponding conditions. The temperature conditions and control of parameters are controlled by computer.

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