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Telecommunications and Radio Engineering
SJR: 0.202 SNIP: 0.2 CiteScore™: 0.23

ISSN Imprimir: 0040-2508
ISSN En Línea: 1943-6009

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Telecommunications and Radio Engineering

DOI: 10.1615/TelecomRadEng.v77.i18.70
pages 1649-1658

OPTIMUM ALGORITHM FOR ESTIMATING RADIO BRIGHTNESS IN SPATIALLY DISTRIBUTED RADIOMETER SYSTEMS

Valerii K. Volosyuk
National Aerospace University "Kharkiv Aviation Institute", 17, Chkalova St., Kharkiv 61070, Ukraine
S. S. Zhyla
National Aerospace University (Kharkiv Aviation Institute), 17 Chkalov St., Kharkiv, 61070, Ukraine
V. V. Pavlikov
National Aerospace University "Kharkiv Aviation Institute", 17, Chkalova St., Kharkiv 61070, Ukraine
A. D. Abramov
National Aerospace University (Kharkov Aviation Institute), 17, Chkalov St., Kharkiv, 61070, Ukraine
V. G. Yakovlev
National Aerospace University (Kharkiv Aviation Institute), 17 Chkalov St., Kharkiv, 61070, Ukraine

SINOPSIS

Optimization of the radio thermal radiation noise processing in multichannel spatially distributed radiometer systems is performed. The algorithms consideration is applicable in the aperture synthesis systems. The maximum likelihood method is implemented for calculation in the assumption that spectral brightness of radiation is constant within the frequency band of receiver, whereas the image of a radiating object depends on spatial (angular) coordinates. The peculiarities of solved tasks consists in using the spectral FV -transforms which do not require execution of the spatiotemporal band-limitedness (the quasi-monochromatic approximation) condition and make it possible to solve the problem of synthesis of algorithms for processing wideband and ultra wideband signals.


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