Subsurface localization of interfaces

The localization of a slab embedded within a homogeneous half-space is dealt with. A multi-frequency plane wave incidence is assumed and the locations of the slab interfaces are represented as the support of "distributions". A linear model of the electromagnetic scattering is adopted and the inversion is regularized by means of the Singular Value Decomposition (SVD) tool. Numerical tests performed via SVD allow to analyze the reconstruction capabilities of the reconstruction algorithm, i.e. the maximum depth of investigation and the resolution limits, which depend on the properties of the investigated medium and on the exploited work frequency band. Experimental results are shown.