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Discrimination experiments with the U.S. Army's standard metal detector

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dc.creatorLloyd, Riggs
dc.creatorChilaka, Sailaja
dc.creatorLeslie, Collins
dc.creatorLowe, Larry
dc.creatorWeaver, Richard
dc.description.abstract[1] Discrimination experiments with the U. S. Army's standard hand-held metal detector (AN/PSS-12) are described. An appendix describes the functioning of the device as a metal detector, and the body of the paper discusses modifications to the device necessary to carry out the discrimination experiments. Half of the mines in a large blind test grid were correctly identified with nearly zero false alarms, but the false alarm rate increased substantially for detection probabilities greater than one half. Degradation in performance is attributed to low signal-to-noise ratio from low metallic content mines buried deep in the soil. One measurement was taken with the object centered with respect to the search coils and four more with the object between the concentric search coils in the north, south, east, and west directions. Discrimination performance using all spatial measurements was shown to be superior to that obtained when using only the centered measurement, indicating that spatial measurement diversity is needed to adequately define all the unique modes of a target's polarizability tensor.en_US
dc.publisherAmerican Geophysical Union and John Wiley & Sons, Inc.en_US
dc.relation.ispartofRadio Scienceen_US
dc.rights©American Geophysical Union 2004. This is this the version of record co-published by the American Geophysical Union and John Wiley & Sons, Inc. It is made available under the CC-BY-NC-ND 4.0 license. Item should be cited as: Riggs, L., Chilaka, S., Collins, L., Lowe, L., & Weaver, R. (2004). Discrimination experiments with the US Army's standard metal detector. Radio Science, 39(4), 1-18.en_US
dc.subjectelectromagnetic inductionen_US
dc.subjectmetal detectorsen_US
dc.titleDiscrimination experiments with the U.S. Army's standard metal detectoren_US
dc.type.genreJournal Article, Academic Journalen_US

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