Microwave diffraction tomography allows to obtain a cross-sectional image of the dielectric properties of an object, from the scattering of an incident microwave radiation. This paper presents a computational study of an imaging algorithm for cylindrical geometries based in the Born approximation. A series of homogeneous cylinders of different size and dielectric permittivity has been reconstructed in lossy media. The influence of attenuation is investigated, and the validity of the algorithm is found to be restricted to weakly scattering objects, in a similar way that in linear geometries. However differential techniques allow the reconstruction of changes in high diffracting objects.

Peer Reviewed