A New Optimization Method For Solving Electromagnetic Inverse Scattering Problems

In this talk, we will propose a new optimization scheme for solving electromagnetic inverse scattering problems. As known, they mean to retrieve the physical properties of hidden targets, i.e., the permittivity and/or permeability, from the measured scattering data excited by several incidences. By considering only the physical properties of the targets as unknowns, one usually resorts to the more traditional optimization searching scheme to find the solution, by which one needs to solve the corresponding forward problems for all the incidences at each iteration of the optimization, such as the well-known distorted Born iterative method (DBIM) [1]. This is often time-consuming even given the fast forward solvers.