Inverse scattering of buried complex object by TE wave illumination

The inverse scattering of buried complex object by transverse electric (TE) wave illumination is investigated. Dielectric cylinders coated on a conductor of unknown permittivities are buried in one half space and scatter a group of unrelated TE waves incident from another half space where the scattered field is recorded. By proper arrangement of the various unrelated incident fields, the difficulties of ill-posedness and nonlinearity are circumvented, and the permittivity distribution can be reconstructed through simple matrix operations. The algorithm is based on the moment method and the unrelated illumination method. Good reconstruction is obtained even in the presence of additive Gaussian random noise in measured data. In addition, the effect of noise on the reconstruction result is also investigated.