Image reconstruction from real scattering data using an iterative scheme with incorporated a priori information

The two-dimensional inverse electromagnetic-scattering problem of reconstru cting the material properties of inhomogeneous lossy dielectric cylindrical objects is considered. The material properties are reconstructed from meas ured far-field scattering data, provided by the USAF Rome Laboratory Electr omagnetic Measurement Facility in Ipswich. The targets in the Ipswich data set include perfectly electrically conducting (PEC) targets, penetrable (PE N) targets, and hybrid targets. A new method, which incorporates a priori i nformation about the material properties, is proposed to solve the nonlinea r inverse-scattering problem.