Study of a Polarimetric Model for Diffuse Scattering in Urban Environment

This work focuses on the polarimetric properties of radio waves scattered off building walls. Two measurement campaigns, the first in a street canyon scenario and the second in a campus scenario, are used to validate an ad-hoc polarimetric diffuse scattering model, suitable to be embedded in Ray-Tracing (RT) prediction tools. The polarization part of the model relies on a single parameter, Kxpol, that sets the polarization coupling between the original polarization and the orthogonal one, caused by a scattering interaction. Results show that between 20% and 30% of the incident field intensity is depolarized, depending on the scenario, in accordance with what found in the experimental parametrization of the model.