Numerical electromagnetic inverse-scattering solutions for two-dimensional infinite dielectric cylinders buried in a lossy half-space

An approach to microwave imaging in a half-space geometry and to treating infinite dielectric cylinders buried in a lossy medium is proposed. The two-dimensional integral equation for the inverse-scattering problem is discretized by the moment method. The resulting ill-conditioned system is solved by pseudoinversion. A multi-incidence process based on the invariance of the Green matrix to the incident field is described. Results of some numerical simulations, assuming a noisy environment, are reported and discussed.>