A variant of the construction of a radiometer with a stochotic pilot signal is considered, in which a logarithmic detector of root-mean-square values is used instead of a quadratic one, which made it possible to obtain a dynamic range of the radiometer over 60 dB. It was experimentally shown that the developed Ka-band scanning radiometer at a distance of about 200 m has a resolution of about 4 m in field images and in the raster scan mode in angular coordinates it allows to obtain radio-thermal images of the observed sky section or underlying surface.
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Author Name: O.A. Voitovich, A.M. Linkova, A.A. Mogyla, V.P. Maltsev, G.A. Rudnev, G.I. Khlopov, O.P. Gribsky, S.V. Makovenko, S.B. Maltsev, S.V. Mironyuk, V.D. Pavlenko
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Keywords: scanning radiometer; thermal image; fluctuation sensitivity; radiobrightness contrast; Cassegrain antenna; microcontroller; stepper motor; raster scanning
ISSN: 0485-8972
EISSN: 0485-8972
EOI/DOI: 10.30837/rt.2019.2.197.01
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