Voronezh, Russia
Voronezh, Russia

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Axvig N.,Military Institute | Axvig N.,Concordia College | Dreher D.,University of Nebraska - Lincoln
IEEE Transactions on Information Theory | Year: 2013

The performance of linear programming decoding is determined by the set of nonzero linear programming pseudocodewords. The minimum pseudoweight of this set of linear programming pseudocodewords is also generally accepted as a good predictor of the performance of iterative message-passing decoding. Since the linear programming decoder has a natural description based on the Tanner graph of a code, linear programming pseudocodewords can be analyzed from a graphical viewpoint. In this paper, two graphical characterizations of linear programming pseudocodewords of cycle codes are provided: one for the entire set of linear programming pseudocodewords, and one for the set of minimal linear programming pseudocodewords. The first of these characterizations is used to determine a formula for the minimum degree of a graph cover necessary to realize a linear programming pseudocodeword of a cycle code, and the second is used to prove a result concerning the asymptotic performance of the linear programming decoder when considering transmission over either the additive white Gaussian noise channel or the binary symmetric channel. Finally, a discussion contrasting these two characterizations both with each other and with Horn's characterization of bad pseudocycles is provided. © 1963-2012 IEEE.


PubMed | University of Jan Evangelista Purkyne, Military Institute and Academy of Sciences of the Czech Republic
Type: | Journal: Reviews of environmental contamination and toxicology | Year: 2015

Metal oxides have very important applications in many areas of chemistry, physics and materials science; their properties are dependent on the method of preparation, the morphology and texture. Nanostructured metal oxides can exhibit unique characteristics unlike those of the bulk form depending on their morphology, with a high density of edges, corners and defect surfaces. In recent years, methods have been developed for the preparation of metal oxide powders with tunable control of the primary particle size as well as of a secondary particle size: the size of agglomerates of crystallites. One of the many ways to take advantage of unique properties of nanostructured oxide materials is stoichiometric degradation of chemical warfare agents (CWAs) and volatile organic compounds (VOC) pollutants on their surfaces.


Golovkov A.A.,Military Institute | Gaidukov V.I.,Military Institute
Telecommunications and Radio Engineering (English translation of Elektrosvyaz and Radiotekhnika) | Year: 2010

A problem of parametral synthesis of matching devices for amplitude demodulators, built on resistive elements, by the criterion of ensuring the specified modulation depth of the received amplitude-modulated signal with any initial modulation depth of it, is solved. © 2010 Begell House, Inc.


Golovkov A.A.,Military Institute | Boyarintsev A.V.,Military Institute
Telecommunications and Radio Engineering (English translation of Elektrosvyaz and Radiotekhnika) | Year: 2010

A problem of parametrical synthesis of matching devices for amplitude demodulators, built on resistive elements, by the criterion of ensuring the specified amplitudes of the received signal in two states of a three-pole nonlinear element, defined by extreme values of the input amplitude-modulated signal, is solved. © 2010 Begell House, Inc.


Romanjuk V.A.,Military Institute | Sova O.Y.,Military Institute | Zhuk A.V.,Military Institute | Minochkin D.A.,Military Institute
KpbiMuKo 2010 CriMiCo - 2010 20th International Crimean Conference Microwave and Telecommunication Technology, Conference Proceedings | Year: 2010

The problem of generation of MANET control system is considered. The model of MANET control system consisting in the development of the methods of operative management and coordination of their interaction according to the control functions and to the levels of OSI model is offered. © 2010.


Golovkov A.A.,Military Institute | Malyutina I.A.,Military Institute
Telecommunications and Radio Engineering (English translation of Elektrosvyaz and Radiotekhnika) | Year: 2011

A problem of parametrical synthesis of complex matching and filtering devices (MFDs) of phase demodulators by the criterion of ensuring the conversion of a phase-modulated signal to an amplitude- and-phase-modulated signal with the specific modulation depth is solved. Systems of interrelations between elements of the MFD resistance matrix elements, optimal by the above criterion, have been produced. These interrelations have been used to find mathematical expressions determining optimal values of complex resistances in typical MFD two-pole networks. © 2010 by Begell House, Inc.


Golovkov A.A.,Military Institute | Golovkov V.A.,Military Institute
Telecommunications and Radio Engineering (English translation of Elektrosvyaz and Radiotekhnika) | Year: 2011

A problem of parametrical synthesis of matching and filtering devices (MFDs) for phase demodulators by the criterion of ensuring the conversion of an input phase-modulated signal to an amplitude- and-phase-modulated signal with the specified transmission ratio modules and phases in two states of the nonlinear element when MFDs use RLC basis, is solved. Interrelations between MFD resistance matrix elements, optimal by this criterion, have been produced for two-pole and three-pole nonlinear elements with different inclusion versions. Optimal values of complex resistances in two-pole networks, constituting typical MFDs, have been defined. © 2010 by Begell House, Inc.


Golovkov A.A.,Military Institute | Gaidukov V.I.,Military Institute
Telecommunications and Radio Engineering (English translation of Elektrosvyaz and Radiotekhnika) | Year: 2011

A problem of parametrical synthesis of resistive matching devices (MDs) of phase demodulators by the criterion of ensuring the conversion of a phase-modulated signal to an amplitude-andphase-modulated signal with the specific modulation depth, using a three-pole nonlinear element, is solved. © 2010 by Begell House, Inc.

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