Begell House Inc.
Telecommunications and Radio Engineering
TRE
0040-2508
70
20
2011
BISPECTRUM-BASED TIME-FREQUENCY DISTRIBUTIONS USED FOR MOVING TARGET RECOGNITION IN GROUND DOPPLER SURVEILLANCE RADAR SYSTEMS
1797-1812
10.1615/TelecomRadEng.v70.i20.10
A. V.
Totsky
National Aerospace University (Kharkiv Aviation Institute), 17, Chkalov St., Kharkiv, 61070, Ukraine
P. A.
Molchanov
National Aerospace University, Chkalova Str. 17,61070, Kharkiv, Ukraine
G. I.
Khlopov
O.Ya. Usikov Institute for Radio Physics and Electronics, National Academy of Sciences of Ukraine, 12, Academician Proskura St., Kharkiv 61085, Ukraine
V. Ye.
Morozov
A. Usikov Institute of Radio Physics and Electronics, National Academy of Sciences of Ukraine, 12, Academician Proskura Str., Kharkiv 61085, Ukraine
bispectrum
time-frequency distribution
automatic target recognition
A problem of automatic recognition and classification the moving ground radar targets by using time-frequency distributions (TFDs) evaluated for the non-stationary backscattered signals is considered. Results of experimental investigations performed by coherent Doppler radar operating in the millimeter range of wavelengths and continuous mode are represented. Comparative analysis of automatic target recognition (ATR) system performances is executed for the target classification features extracted from several types of TFDs formed by different techniques and for different making decision rules. The benefits provided by bispectrum-based estimation of the fine structure in the backscattered signals are demonstrated.
FILTERING OF IMAGES FROM FINITE-DIMENSIONAL FUNCTIONAL SPACE
1813-1826
10.1615/TelecomRadEng.v70.i20.20
Y. V.
Kornienko
O.Ya. Usikov Institute for Radio Physics and Electronics, National Academy of Sciences of Ukraine, 12 Academician Proskura St., Kharkiv 61085, Ukraine
the Bayes statistical approach
image filtering
The problem on the optimal filtering of images from the finite-dimensional functional space which are blurred by a known kernel and recorded in the presence of the additive Gaussian noise, is considered from the standpoint of the Bayes statistical approach. A general view on the problem is illustrated by two specific practical problems: filtering of images of an extended source system of known shape, and determination of coordinates of a point source and its intensity as a time-varying function against the uniform background of unknown brightness.
SLOW WAVES IN A PERIODIC STRUCTURE WITH MAGNETOACTIVE SEMICONDUCTOR LAYERS
1827-1840
10.1615/TelecomRadEng.v70.i20.30
V. K.
Kononenko
A. Usikov Institute of Radio Physics and Electronics, National Academy of Sciences of Ukraine 12, Academician Proskura St., Kharkov 61085, Ukraine
A. A.
Bulgakov
A. Usikov Institute of Radio Physics and Electronics, National Academy of Sciences of Ukraine, 12, Academician Proskura St., Kharkov 61085, Ukraine
periodic structure
surface wave
magnetoactive layers
slow wave
Specific features shown by zonal spectra of a periodic structure with magnetoactive semiconductor layers in the vicinity of its characteristic frequencies in the submillimeter wavelength range are investigated theoretically. The analysis technique is presented. It is shown that the surface wave phase velocity in a thin-layer periodic structure with a transverse configuration of the external magnetic field can assume magnitudes comparable with the drift velocity of charge carriers in the semiconductor. Thus, the slowing factor for waves in a periodic structure with nano-layers made of celsian ceramics and n-InSb exceeds 103 at the temperature of liquid nitrogen and magnetic fields 0.25 to 1 T. Physically, the wave slowdown effect is associated with the existence of a transmission zone at lower frequencies which allows moving over the dispersion curve into the range of great magnitudes of the wavenumber for small periods of the thin-layer periodic structure.
THz-SURFACE ELECTROMAGNETIC OSCILLATIONS IN PLASMA-LIKE MEDIA CONTAINING THE FLUXES OF CHARGED PARTICLES
1841-1853
10.1615/TelecomRadEng.v70.i20.40
S. I.
Khankina
A. Usikov Institute of Radio Physics and Electronics, National Academy of Sciences of Ukraine 12, Academician Proskura St., Kharkov 61085
Vladimir M.
Yakovenko
A. Usikov Institute of Radio Physics and Electronics, National Academy of Sciences of Ukraine 12, Academician Proskura St., Kharkov 61085
I. V.
Yakovenko
A. Usikov Institute of Radio Physics and Electronics, National Academy of Sciences of Ukraine 12, Academician Proskura St., Kharkov 61085
charged particle flux
plasma-like media
potential barrier
instability
An interaction between charged particles and surface plasmons in a semiconductor-dielectric (vacuum) structure is considered as a kinetic approximation. The impact of the potential barrier at the interface on this interaction is taken into account. An instability increment of surface plasmons is found. The existence of the potential barrier results in a decreased increment.
EVALUATING THE OPERATION RELIABILITY OF A NETWORK ELEMENT WITH FLOW ROUTING
1855-1862
10.1615/TelecomRadEng.v70.i20.50
A. A.
Burov
Siberian State University of Telecommunications and Informatics, Novosibirsk, Russian Federation
flow routing
operation reliability
queuing system
network element
queuing theory
traffic volume
transmission
An approach to evaluating the operation reliability of network elements based on an example of routers with classical and flow routing is proposed.
A MATHEMATICAL MODEL FOR CONTROLLING A TELECOMMUNICATION NETWORK AND MODELS FOR CONTROLLING THE TECHNICAL STATE AND DIAGNOSING ITS ELEMENTS
1863-1869
10.1615/TelecomRadEng.v70.i20.60
A. N.
Zbinyakov
The Academy of Federal Security Guard Service of the Russian Federation, Orel, Russia
V. A.
Lyubimov
Academy of Federal Security Service, Orel, Russian Federation
D. A.
Lopatin
Academy of the Russian Federal Security Service, Orel, Russian Federation
R. N.
Shulgin
The Academy of Federal Security Guard Service of the Russian Federation, Orel, Russia
I. P.
Maksaev
Academy of the Russian Federal Security Service, Orel, Russian Federation
telecommunication network
quality of services
hardware-software complex
monitoring
diagnosing
controlling
walkthrough
New approaches are proposed to building a model for controlling a telecommunication network in terms of its walkthrough as well as models for controlling the technical state and diagnosing of complex hardware and software facilities in telecommunication networks, that take into account their multitask capability and multimodality.
INTERACTION OF ARTIFICIAL DNA-LIKE STRUCTURES IN THE MICROWAVE RANGE: POLARIZATION SELECTIVITY OF WAVE REFLECTION
1871-1882
10.1615/TelecomRadEng.v70.i20.70
I. V.
Semchenko
Francisk Skorina Gomel State University 104, Sovetskaja str., Gomel, 246019, Belarus
S. A.
Khakhomov
Francisk Skorina Gomel State University 104, Sovetskaja str., Gomel, 246019, Belarus
A. P.
Balmakov
Francisk Skorina Gomel State University 104, Sovetskaja str., Gomel, 246019, Belarus
DNA
helix
polarization selectivity
Study of polarization properties of DNA was chosen as one of primarily important in connection with asymmetry of the shape of DNA. The preliminary theoretical calculation showed that the shape of DNA is optimal for formation of a circularly polarized electromagnetic wave under the assumption of resonance (λ ~ 10 nm). The experimental study conducted according to the electrodynamic similarity principle for metallic DNA-like helices in the microwave range confirmed this conclusion. The presence of effect of polarization selectivity in the case of double reflection of microwaves from DNA-like helical elements depending on their sign (right- and left-handed helices) is experimentally confirmed in the study. The circular polarization of waves is shown to play an important role in the case of interaction of artificial DNA-like structures in the microwave range. It is possible that an identical effect occurs during some processes with participation of DNA in cells of biological organisms in the far ultraviolet or "soft" X-ray range.
DECOMPOSITION OF LASER-INDUCED EMISSION SPECTRA
1883-1890
10.1615/TelecomRadEng.v70.i20.80
M. I.
Dzyubenko
O.Ya. Usikov Institute for Radio Physics and Electronics, National Academy of Sciences of Ukraine, 12 Academician Proskura St., Kharkiv 61085, Ukraine; V. Karazin National University of Kharkiv, 4 Svobody Sq., Kharkiv 61022, Ukraine; Kharkiv National University of Radio Electronics, 14 Nauka Ave, Kharkiv 61166, Ukraine
D. F.
Kulishenko
A. Usikov Institute of Radio Physics and Electronics, National Academy of Sciences of Ukraine, 12, Academician Proskura St., Kharkiv 61085, Ukraine
A. A.
Priyomko
A. Usikov Institute of Radio Physics and Electronics, National Academy of Sciences of Ukraine, 12, Academician Proskura Str., Kharkiv 61085, Ukraine
S. N.
Kolpakov
A. Usikov Institute of Radio Physics and Electronics, National Academy of Sciences of Ukraine 12, Academician Proskura St., Kharkov 61085, Ukraine
emission spectrum
overlapped lines
laser-induced spectrum
spectrum model
The method for splitting of laser-induced spectra into set of separated spectral bands using optimization of the full-spectrum model is suggested. Spectrum models are built on the basis of three spectral line shapes and comparison of experimental results is performed.