Paper Title
Inverse Electromagnetic Scattering by Combining Subspace-based Algorithms

This paperdiscusses an inverse scattering problem for the reconstruction of permittivity distribution of twodimensional dielectric objects.Based on the boundary condition and the measured scattered field, a set of nonlinear integral equation is derived and the imaging problem is reformulated into optimization problem. We solved the problem by combining subspace-basedalgorithmand self-adaptive dynamic differential evolution (SADDE). Numerical results showthat the permittivity distribution of the dielectric objectsis well reconstructed by SADDE. Keywords - Inverse Scattering, Subspace-based Algorithm, Self-Adaptive Dynamic Differential Evolution