An adaptive algorithm for electromagnetic imaging

Various iterative techniques have been elaborated recently to treat the ill-conditioned matrix equations in the inverse scattering problems relative to the electromagnetic imaging of dielectric objects. An adaptive algorithm is proposed, in which the performance of different prediction-correction techniques are compared within the iterative process in order to determine the more appropriate one for subsequent iterations. The procedure is flexible in the sense that it can incorporate various available techniques and is able to deal with a wider range of objects than existing methods. Two test examples are presented and the results are briefly discussed