Andrea Randazzo

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—A hybrid approach for phaseless imaging of dielec-tric targets is proposed in this letter. A two-probe measurement strategy with the related phase-retrieval method is adopted in conjunction with an inversion procedure based on an inexact-Newton method to give an efficient and low-cost imaging setup, avoiding the need of multiple acquisition surfaces. A(More)
Electromagnetic inverse scattering techniques are considered to reconstruct the permit-tivity and the velocity profiles of axially moving cylindrical targets. Two approaches are proposed. One of these is based on a two-step procedure. It is shown that it provides good approximations of the profiles to be reconstructed in a very efficient way, when the peak(More)