Microwave imaging of a conducting cylinder buried in a lossless half space by modified fireworks algorithm

In this article, the microwave imaging of a conducting cylinder buried in a lossless half space is given by the modified fireworks algorithm. The interface scattering effects are treated by the half-space Green's function. The target shape is represented by a Fourier series with finite terms. Image reconstruction is first transformed into an optimization problem. The variables are Fourier series coefficients of the target shape. The objective function is defined by comparing scattered electric fields from the guessed and true shapes, respectively. The transformed optimization problem is then solved by the modified fireworks algorithm. Numerical results show that the proposed image reconstruction scheme is accurate, converges well, and can tolerate multiple scattering effects.