Reconstruction of Layered Dielectric Media using the Band-Limited Reflectometry

A novel one-dimensional microwave imaging approach based on successive reconstruction of dielectric interfaces is described. The reconstruction is obtained by the Newton-Kantorovich method using the complex reflection coefficient data collected over some standard waveguide band The problem is considered in terms of the optical path length to ensure better convergence and stability of the iterative procedure. Then, the reverse coordinate transformation to the final profile is applied. The method is valid for highly contrasted discontinuous profiles and shows low sensitivity to the practical measurement error. Some numerical examples are presented.