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10 June 2005 Physics derived basis pursuit in buried object identification using EMI sensors
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Abstract
A method is presented for identifying buried objects using electromagnetic induction metal detectors. The method uses a physics based model for identifying two basis functions that fundamentally compose metal detector signals. These bases form a signal subspace that contains the signals from all objects at the same depth regardless of their shape, size, or metal content. First, an algorithm for determining this subspace is presented. Then utilizing the proper signal subspace, the shape of the object is determined by estimating the object's directional polarizablity.
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Jay A. Marble, Andrew E. Yagle, and Gregory H. Wakefield "Physics derived basis pursuit in buried object identification using EMI sensors", Proc. SPIE 5794, Detection and Remediation Technologies for Mines and Minelike Targets X, (10 June 2005); https://doi.org/10.1117/12.627949
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