Multifunctional K-band scanning radiometer with an additive noise pilot signal
DOI:
https://doi.org/10.30837/rt.2019.2.197.01Keywords:
scanning radiometer, thermal image, fluctuation sensitivity, radiobrightness contrast, Cassegrain antenna, microcontroller, stepper motor, raster scanningAbstract
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.References
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