Multiscaling Differential Contraction Integral Method for Inverse Scattering Problems With Inhomogeneous Media

Practical applications of microwave imaging often require the solution inverse scattering problems with inhomogeneous backgrounds. Toward this end, a novel inversion strategy, which combines multiscaling (MS) regularization scheme and difference contraction integral equation (DCIE) formulation, is proposed. Such an integrated approach mitigates nonlinearity ill-posedness problem to obtain reliable high-resolution reconstructions unknown profiles. The arising algorithmic implementation, denoted as MS-DCIE, does not computation Green’s function background, thus, it provides efficient effective way deal complex scenarios. performance MS-DCIE assessed by means numerical experimental tests in comparison competitive state-of-the-art strategies well.