Microwave imaging in stratified media: A multifrequency inverse-scattering approach

The problem of reconstructing dielectric structures embedded in stratified media is addressed in this paper. In particular, an inverse-scattering method operating in constant-exponent Lebesgue spaces is adopted for retrieving the dielectric properties of buried objects located in a three-layer medium. This approach, which features a nonlinear modeling of the scattering effects, processes data acquired at multiple frequencies at the same time, for improving the imaging performances. Some preliminary results, obtained with synthetic data, are presented in order to validate the method and assess its reconstruction capabilities in this configuration.