Detection of multiple subsurface metallic targets using EMI data

Tomasz M. Grzegorczyk; Benjamin Barrowes; Fridon Shubitidze; J. P. Fernández; Irma Shamatava; Kevin ONeill

doi:10.1117/12.819291

4 May 2009 Detection of multiple subsurface metallic targets using EMI data

Tomasz M. Grzegorczyk, Benjamin Barrowes, Fridon Shubitidze, J. P. Fernández, Irma Shamatava, Kevin ONeill

Proceedings Volume 7303, Detection and Sensing of Mines, Explosive Objects, and Obscured Targets XIV; 73030T (2009) https://doi.org/10.1117/12.819291
Event: SPIE Defense, Security, and Sensing, 2009, Orlando, Florida, United States

Abstract

The detection of unexploded ordnance (UXO) in the presence of a discrete and large clutter is here investigated in the electromagnetic induction regime using a Newton method with no a priori information on the position or the strength of each object. The problem is formulated as a cost-function minimization on the difference in magnetic fields between the measured or synthetic data and their corresponding predictions. Both a bistatic and a monostatic operating modes are considered and applied to various geometrical configurations such as targets in close proximity or on top of each other. Measurement data from the TEMTADS sensor in a two-object configuration are also analyzed. The results illustrate the accuracy of the method in many situations, but also point out at some current limitations for which further improvements are suggested.

Citation Download Citation

Tomasz M. Grzegorczyk, Benjamin Barrowes, Fridon Shubitidze, J. P. Fernández, Irma Shamatava, and Kevin ONeill "Detection of multiple subsurface metallic targets using EMI data", Proc. SPIE 7303, Detection and Sensing of Mines, Explosive Objects, and Obscured Targets XIV, 73030T (4 May 2009); https://doi.org/10.1117/12.819291

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