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Proceedings Paper

Cylindrical holographic radar camera
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Paper Abstract

A novel personnel surveillance system has been developed to rapidly obtain 360 degree, full-body images of humans for the detection and identification of concealed threats. Detectable threats include weapons fabricated with metal, plastic, and ceramic, as well as explosive solids and liquids. This new system uses a cylindrical mechanical scanner to move a seven-foot, 384 element, Ka band (26 - 30 GHz) array circumferentially around a person in four to seven seconds. Low power millimeter-waves, which are nonionizing and not harmful to humans, are employed because they readily penetrate clothing barriers and reflect from concealed threats. The reflected waves provide information that is reconstructed into 3-D cylindrical holographic images with high-speed, digital signal processing (DSP) boards. This system is capable of displaying in an animation format eight, sixteen, thirty-two or sixty-four image frames at various aspect angles around the person under surveillance. This new prototype surveillance system is operational and is presently under laboratory testing and evaluation.

Paper Details

Date Published: 28 December 1998
PDF: 10 pages
Proc. SPIE 3575, Enforcement and Security Technologies, (28 December 1998); doi: 10.1117/12.334976
Show Author Affiliations
Douglas L. McMakin, Pacific Northwest National Lab. (United States)
David M. Sheen, Pacific Northwest National Lab. (United States)
Thomas E. Hall, Pacific Northwest National Lab. (United States)
Ronald H. Severtsen, Pacific Northwest National Lab. (United States)

Published in SPIE Proceedings Vol. 3575:
Enforcement and Security Technologies
A. Trent DePersia; John J. Pennella, Editor(s)

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