Microwave Imaging: Identification of Multiple Targets Using an Enhancement Hybrid Method

Abstract

Absract A new hybrid method for a complete identification of multiple scattering two-dimensional objects using microwaves is proposed in this study, where the scatterers are assumed to be separated with different homogenous dielectric mediums. The hybrid approach consists of initially retrieving the shape and the position of the scattering objects using a linear sampling method and then determining the electric permittivity and conductivity of the scatterers using an intelligent and deterministic method—the so-called adjoint sensitivity analysis. This approach is technically correct and well organized, which results in high computational speed, efficiency, and stability. In addition, the technique can be generalized for any scatterer structure. Numerical results are used to validate the feasibility of the approach proposed.