Zobrazeno 1 - 10
of 3 192
pro vyhledávání: '"aperture synthesis"'
Autor:
S. R. Heister, V. V. Kirychenka
Publikováno v:
Doklady Belorusskogo gosudarstvennogo universiteta informatiki i radioèlektroniki, Vol 22, Iss 5, Pp 53-61 (2024)
The inverse antenna aperture synthesis technology used to construct a radar image of an aircraft’s propellers has shown high efficiency. The radar image allows to visualize the blades of the rotors included in the functional group (traction rotors
Externí odkaz:
https://doaj.org/article/6bb2c4e935344d2abcf0aa331d862241
Autor:
S. V. Kozlov, V. V. Radionovich
Publikováno v:
Doklady Belorusskogo gosudarstvennogo universiteta informatiki i radioèlektroniki, Vol 21, Iss 6, Pp 70-74 (2024)
It is shown that during digital beamforming in a subaperture antenna array of highly informative space radars with synthetic aperture, it is necessary to provide a procedure for equalizing the time delays of the subaperture output signals for transmi
Externí odkaz:
https://doaj.org/article/f106aa7ee7564a22b6b8a504e58f9c95
Publikováno v:
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, Vol 17, Pp 18666-18682 (2024)
Due to the Gibbs oscillation effect of microwave aperture synthesis radiometers (ASRs) occurring near land/ocean transitions, soil moisture and ocean salinity (SMOS) brightness temperature (TB) measurements are subject to land contamination in ocean
Externí odkaz:
https://doaj.org/article/5734b8e64f564e018a0ea0983d00d2ac
Publikováno v:
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, Vol 17, Pp 6693-6711 (2024)
A new approach based on deep learning methods is presented for reconstructing $L$-band brightness temperature images from the inversion of interferometric data, namely, complex visibilities here simulated from observations of the Soil Moisture and Oc
Externí odkaz:
https://doaj.org/article/1b2ca2db05d64d0694abb54eef9ccb85
Publikováno v:
Remote Sensing, Vol 16, Iss 19, p 3584 (2024)
Synthetic aperture interferometry (SAI) is a signal processing technique that mixes the signals collected by pairs of elementary antennas to obtain high-resolution images with the aid of a computer. This note aims at studying the effects of the dista
Externí odkaz:
https://doaj.org/article/ce97cf8f12144dd69732e9323d1208b1
Publikováno v:
The Astrophysical Journal Letters, Vol 966, Iss 2, p L34 (2024)
A novel deep-learning paradigm for synthesis imaging by radio interferometry in astronomy was recently proposed, dubbed “Residual-to-Residual DNN series for high-Dynamic range imaging” (R2D2). In this work, we start by shedding light on R2D2's al
Externí odkaz:
https://doaj.org/article/6661458b6d79496b8b7c7ec1f30d88a6
Autor:
Simeon Zhyla, Valerii Volosyuk, Vladimir Pavlikov, Nikolay Ruzhentsev, Eduard Tserne, Anatoliy Popov, Oleksandr Shmatko, Olena Havrylenko, Nataliia Kuzmenko, Kostiantyn Dergachov, Yuliya Averyanova, Olga Sushchenko, Maksym Zaliskyi, Oleksandr Solomentsev, Ivan Ostroumov, Borys Kuznetsov, Tatyana Nikitina
Publikováno v:
Радіоелектронні і комп'ютерні системи, Vol 0, Iss 1, Pp 55-76 (2023)
The subject of the manuscript is the algorithms for radar imaging. This research develops imaging methods and algorithms for wideband and ultrawideband active aperture synthesis systems with antenna arrays and stochastic probing signals. The use of a
Externí odkaz:
https://doaj.org/article/4fc83064e9bf4955aca44dae731397cd
Akademický článek
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Akademický článek
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Publikováno v:
The Astrophysical Journal Supplement Series, Vol 273, Iss 1, p 3 (2024)
Radio-interferometric imaging entails solving high-resolution high-dynamic-range inverse problems from large data volumes. Recent image reconstruction techniques grounded in optimization theory have demonstrated remarkable capability for imaging prec
Externí odkaz:
https://doaj.org/article/62b0736b3665448e963cc6d9532ae14c