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Proceedings Paper

Baseline performance of the U.S. Army's AN/PSS-12 metal detector
Author(s): Lloyd S. Riggs; Thomas Barnett; Larry T. Lowe; Jon E. Mooney; Richard C. Weaver
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Paper Abstract

This paper describes data collection efforts carried out at Fort A.P Hill VA with the US Army's hand held metal detector (MD) the AN/PSS-12. Our efforts were directed toward establishing the receiver operating characteristics (ROC) curves for the AN/PSS-12 thereby creating an objective measure of its baseline performance capabilities. Voltage- versus-time waveforms were recorded at two different locations in the AN/PSS-12's receiver circuitry: 1) After the first stage of amplification following the receiver coil, and 2) At the output of the step-2 difference amplifier just before its voltage-to-frequency converter. The latter signal was used to determine the frequency of the detector's audio output frequency-versus-position data was used to determine the baseline ROC for the AN/PSS-12 under the binary mine-no-mine hypothesis. Under this hypothesis, the baseline ROC for the detector is shown to lie close to the change diagonal, an expected result, since the detector's audio output offers the detector operator no way to discriminate between mines and metallic clutter objects. An improved 'ad hoc' detector is presented that has the ability to distinguish between mines and clutter objects based on spatial symmetry. Our symmetry detector operates on energy-versus-position data derived from the first type of data described above. The ROC for out symmetry detector is shown to lie well above the change diagonal.

Paper Details

Date Published: 2 August 1999
PDF: 12 pages
Proc. SPIE 3710, Detection and Remediation Technologies for Mines and Minelike Targets IV, (2 August 1999); doi: 10.1117/12.357075
Show Author Affiliations
Lloyd S. Riggs, Auburn Univ. (United States)
Thomas Barnett, Auburn Univ. (United States)
Larry T. Lowe, Auburn Univ. (United States)
Jon E. Mooney, Auburn Univ. (United States)
Richard C. Weaver, Joint UXO Coordination Office (United States)

Published in SPIE Proceedings Vol. 3710:
Detection and Remediation Technologies for Mines and Minelike Targets IV
Abinash C. Dubey; James F. Harvey; J. Thomas Broach; Regina E. Dugan, Editor(s)

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