The inverse electromagnetic scattering problem by a penetrable cylinder at oblique incidence
This work addresses the inverse electromagnetic scattering problem for penetrable cylinders, a specific domain in computational electromagnetics, but the method is incremental and lacks quantitative performance metrics.
The authors developed a nonlinear boundary integral equation method to solve the inverse scattering problem for a penetrable cylinder under oblique incidence, demonstrating feasibility through numerical results.
In this work we consider the method of non-linear boundary integral equation for solving numerically the inverse scattering problem of obliquely incident electromagnetic waves by a penetrable homogeneous cylinder in three dimensions. We consider the indirect method and simple representations for the electric and the magnetic fields in order to derive a system of five integral equations, four on the boundary of the cylinder and one on the unit circle where we measure the far-field pattern of the scattered wave. We solve the system iteratively by linearizing only the far-field equation. Numerical results illustrate the feasibility of the proposed scheme.