New advances in electromagnetic scattering and inverse scattering from subsurface profiles

We propose a new method for bistatic scattering from hybrid subsurface profiles with multilayer rough interfaces and flat boundaries, which the fast method is firstly demonstrated by strictly theoretical formulas in the framework of classical small perturbation method (SPM) without other else approximation and assumption strategy. What is more, we can obtain general compact closed-form first-order perturbation solutions of hybrid subsurface profiles with an arbitrary number of rough and smooth interfaces, which is necessary to insure a successful inversion process. We employ improved inverse algorithms and get successful inverse process based on the proposed forward model.