Model-based inversion of 2-D TM scattering problems

Model-based inversion (MBI) is robust and stable when the inverse scattering problem is ill-posed. However, it poses large computational burden, making the inversion inefficient. This paper introduces a 2-D electromagnetic MBI, in which the computation time is improved using an efficient implementation of the source-type integral equation. Employing simulated annealing as the optimization algorithm in the MBI method, two examples are presented to demonstrate the performance of the method in the reconstructions of different object profiles.