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A new integral equation method to solve highly nonlinear inverse scattering problems

Abstract : A family of new integral equations (NIE) is proposed in this paper, which are transformed from the original Lippmann- Schwinger integral equation. It can be shown that the NIE can effectively reduce the nonlinearity of inverse scattering problems by reducing the global nonlinear effects, introduced by the multiple scattering behaviors, in estimating the contrast. Equipping the previously proposed two-fold subspacebased optimization method [8] with such NIE, the new inversion method is able to solve inverse scattering problems with strong scatterers, like with high contrast and/or large dimensions (in terms of wavelength) ones. Furthermore, such a family of NIE could provide a convenient tool to appraise reconstructed results. Several representative numerical tests are carried out, using both synthetic and experimental data, to verify the efficacy of the new inversion method.
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Submitted on : Sunday, March 27, 2016 - 11:09:34 AM
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Yu Zhong, Marc Lambert, Dominique Lesselier, Xudong Chen. A new integral equation method to solve highly nonlinear inverse scattering problems. IEEE Transactions on Antennas and Propagation, Institute of Electrical and Electronics Engineers, 2016, 64 (5), pp.1788-1799. ⟨10.1109/TAP.2016.2535492⟩. ⟨hal-01294102⟩



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