Paper Title
Inverse Electromagnetic Scattering By Combining Subspace-Based Algorithms

This paper discusses an inverse scattering problem for the reconstruction of permittivity distribution of two-dimensional 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-based algorithm and self-adaptive dynamic differential evolution (SADDE). Numerical results show that the permittivity distribution of the dielectric objects is well reconstructed by SADDE. Keywords- Inverse Scattering, Subspace-based Algorithm, Self-Adaptive Dynamic Differential Evolution