Conjugate gradient method for solving inverse scattering with experimental data

P. Lobel 1 R.E. Kleinman Christian Pichot 1 Laure Blanc-Féraud 2 Michel Barlaud 3
2 MORPHEME - Morphologie et Images
CRISAM - Inria Sophia Antipolis - Méditerranée , IBV - Institut de Biologie Valrose : U1091, Laboratoire I3S - SIS - Signal, Images et Systèmes
Abstract : The reconstruct of the complex permittivity profile of lossy dielectric objects from measured far-lied data is considered, with application to perfectly conducting (PEC) objects. From an integral representation of the electric field (EFIE), and applying a moment-method solution, an iterative-reconstruction algorithm based on a conjugate-gradient method, is derived. In order to start the iterative procedure with an initial guess, a back-propagation scheme is used. For testing the algorithm on real, measured data, the reconstruction of two PEC (cylinder and strip) objects is presented.
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P. Lobel, R.E. Kleinman, Christian Pichot, Laure Blanc-Féraud, Michel Barlaud. Conjugate gradient method for solving inverse scattering with experimental data. IEEE Antennas and Propagation Magazine, Institute of Electrical and Electronics Engineers, 1996, 38 (3), pp.48-51. 〈10.1109/MAP.1996.511954〉. 〈hal-00986322〉



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