RT Journal Article ID 6c48bcb809d0b396 A1 Volosyuk, Valerii K. A1 Zhyla, S. S. A1 Pavlikov, V. V. A1 Abramov, A. D. A1 Yakovlev, V. G. T1 OPTIMUM ALGORITHM FOR ESTIMATING RADIO BRIGHTNESS IN SPATIALLY DISTRIBUTED RADIOMETER SYSTEMS JF Telecommunications and Radio Engineering JO TRE YR 2018 FD 2018-11-23 VO 77 IS 18 SP 1649 OP 1658 K1 remote sensing K1 thermal radiation K1 brightness K1 optimization K1 radiometer K1 antenna array AB 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. PB Begell House LK https://www.dl.begellhouse.com/journals/0632a9d54950b268,5c54b3eb1f53fb80,6c48bcb809d0b396.html