Abstract
This paper presents two methods for ground‐penetrating radar (GPR) imaging of land mines: a two‐dimensional (2‐D) seismic migration method and a 3‐D nonlinear inverse scattering method. The seismic migration technique has been successfully applied to processing field data sets collected at a test site. The results show that the seismic migration technique is a useful real‐time imaging method. To image the 3‐D structure of the land mine, we have developed a full 3‐D nonlinear inverse scattering algorithm on the basis of the contrast source inversion method. To account for the ground surface and potentially other subsurface layers, the inverse scattering method uses a multilayered medium as a background. Preliminary results demonstrate that the 3‐D inverse scattering method can successfully provide high‐resolution reconstruction of high‐contrast buried objects.
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