UNRELATED ILLUMINATION APPROACH FOR THE RECONSTRUCTION OF 3-DIMENSIONAL INHOMOGENEOUS DIELECTRIC BODIES

The unrelated illumination method is used to estimate the complex perm ittivities of three-dimensional inhomogeneous dielectric bodies. Start ing from the integral representation of the electric field and using t he method of moments, the object under investigation is illuminated by a group of unrelated incident fields. Computer simulations show that the method can be used to overcome the severe ill-posedness of the thr ee-dimensional problem even in the presence of noise and with the use of only one detector to measure the external scattered field. The accu racy of the method is tested for various contrasts, number of scattere rs and different cell sizes. The method is further tested using a mode l for the human head and a 180-cell model of the human body and very a ccurate reconstruction is obtained.