Reconstruction of 3-d Objects Buried in Layered Media Using Born and Distorted Born Iterative Methods
نویسندگان
چکیده
Abstract: We develop three-dimensional electromagnetic inverse scattering methods to reconstruct buried objects in layered media. The nonlinear inverse problem is solved iteratively via conjugate gradient approach; within each iteration, the problem is linearized by Born and Distorted Born approximations. The forward solution for layered media is provided by the stabilized biconjugate-gradient fast Fourier transform (BCGS-FFT) method. The inversion results from BIM and DBIM are presented, and the effects of the aperture size and noise on the inversion results are also discussed. Numerical results show that these methods are capable of reconstructing an arbitrary inhomogeneous object buried in a multi-layered medium with high resolution.
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