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Proceedings Paper

Circular scanned millimeter-wave imaging system for weapon detection
Author(s): David M. Sheen; Douglas L. McMakin; H. Dale Collins
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Paper Abstract

A novel wideband millimeter-wave imaging system concept has been developed at Pacific Northwest Laboratory for the detection of concelaed weapons. Millimeter-waves are ideal for personnel surveillance applications since they will readily penetrate common clothing materials, and have relatively short wavelengths allowing for high resolution imaging. This system concept is based on a circular synthetic aperture imaging technique, in which a circular aperture is scanned and an image is formed of the target located near the scanned aperture. A laboratory imaging system has been developed and results have been obtained using both mannequins and humans with concealed weapons. The technique is readily adaptable to a real- time imaging system using a relatively small number of transceivers and a relatively slow scanner speed.

Paper Details

Date Published: 15 September 1995
PDF: 9 pages
Proc. SPIE 2511, Law Enforcement Technologies: Identification Technologies and Traffic Safety, (15 September 1995); doi: 10.1117/12.219584
Show Author Affiliations
David M. Sheen, Pacific Northwest Lab. (United States)
Douglas L. McMakin, Pacific Northwest Lab. (United States)
H. Dale Collins, Pacific Northwest Lab. (United States)


Published in SPIE Proceedings Vol. 2511:
Law Enforcement Technologies: Identification Technologies and Traffic Safety
Bernard Dubuisson; Geoffrey L. Harding, Editor(s)

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