Level set method as a technique to retrieve target shape from blurred indicator function

In this paper, a target shape reconstruction by using electromagnetic wave in resonance region is proposed. A hybrid level set method and linear sampling method used to reconstruction perfectly electric conducting three dimensional scatterer. The Incident plane wave with frequency 300MHz and uniform directional diversity is exploited to illuminate the corresponding scatterer and the scattered field in the far zone helps to retrieve the scatterer with the largest dimension of 6 meters. The numerical result clearly shows that this inversion algorithm provides an automated process to reconstruct shape of scatterers.