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28 December 1998 Cylindrical holographic radar camera
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Proceedings Volume 3575, Enforcement and Security Technologies; (1998)
Event: Enabling Technologies for Law Enforcement and Security, 1998, Boston, MA, United States
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.
© (1998) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Douglas L. McMakin, David M. Sheen, Thomas E. Hall, and Ronald H. Severtsen "Cylindrical holographic radar camera", Proc. SPIE 3575, Enforcement and Security Technologies, (28 December 1998);

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