An electromagnetic model for SAR raw signal simulation of urban areas

Synthetic aperture radar (SAR) techniques can provide powerful instruments for many fields of research related with the urban environment. In order to fully exploit the potentiality of such instruments it is necessary to reliably model the interaction of the electromagnetic waves with urban settlements. In this paper, an electromagnetic model of scattering of a plane wave from typical element of urban structure is presented. The proposed analytical procedure leads to the evaluation of the scattered field in closed form in terms of the geometric and dielectric building parameters. obtained results provide useful indications for the comprehension of the SAR raw signal formation phenomena and for the development of proper simulation tools