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Radiosounding data and numerical outputs from a cloud-resolving model in conjunction with a Monte Carlo statistical scheme and a radiative transfer algorithm (SNEM) are used to characterize propagation parameters at V- and W-band in Rome, NY, for any meteorological scenario including clear-air, cloudy coverage, stratiform rain and convective precipitation. The analysis aims at exploiting these databases...
Performances of the different techniques that can be used for the discrimination of atmospheric conditions (clear-sky, cloudy, rainy) from slant-path brightness temperatures measured by ground-based microwave radiometers are revised and discussed for their application in radio-propagation.
The authors propose an inversion scheme devoted to the retrieval of the atmospheric specific absorption coefficient based on data collected by a ground-based microwave radiometer. The technique processes elevation scans. The vertical plan is modelled by allocating M bins in the vertical directions. The forward modelling is defined by linearization of the radiative transfer equation around a reference...
This ray tracing technique addresses the profiling of the field intensity in radio links in presence of tropospheric multipath. Care is taken in the identification and separation of the different field contributions due to wave folding and the interaction between the rays and the terrain. Unwrapping the ray comb enables interpolation on single folds without ambiguity. The various steps toward the...
A new 20/30/50 GHz radiometer has been developed for use in a propagation experiment to characterise atmospheric attenuation up to 50 GHz. The radiometer is being used with the ITALSAT propagation payload and beacon receivers at the CSTS experiment station of the Italian Research Council sited at Spino d'Adda, 30 km east of Milan. Details of the radiometer and experimental results obtained since the...
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