A passive millimeter-wave imaging system for concealed weapons and explosives detection

Vladimir G. Kolinko; Shiow-Hwa Lin; Alex Shek; Will Manning; Chris Martin; Max Hall; Oskar Kirsten; Joshua Moore; David A. Wikner

doi:10.1117/12.606661

19 May 2005 A passive millimeter-wave imaging system for concealed weapons and explosives detection (Invited Paper)

Vladimir G. Kolinko, Shiow-Hwa Lin, Alex Shek, Will Manning, Chris Martin, Max Hall, Oskar Kirsten, Joshua Moore, David A. Wikner

Author Affiliations +

Proceedings Volume 5781, Optics and Photonics in Global Homeland Security; (2005) https://doi.org/10.1117/12.606661
Event: Defense and Security, 2005, Orlando, Florida, United States

Abstract

This paper describes a passive millimeter-wave image scanner that leverages technologies previously developed for a video-rate passive millimeter-wave camera (PMC) [1, 2]. The imager has a prime focus elliptical frequency scanned antenna operating in the 75-93 GHz millimeter-wave band, a low noise receiver and a vertical beam former that allows the instantaneous capture of 128 pixel (vertical) column images in 1/30th of a second, with 2-3 K sensitivity. Two dimensional images are created by mechanically rotating the antenna, which produces a 128x60 raster image in 2 seconds. By integrating (averaging) images over a longer time period, we have demonstrated a sub-degree temperature resolution. This sensor has proven itself as a low cost tool for studying the potential of W-band passive imaging for various applications.

Citation Download Citation

Vladimir G. Kolinko, Shiow-Hwa Lin, Alex Shek, Will Manning, Chris Martin, Max Hall, Oskar Kirsten, Joshua Moore, and David A. Wikner "A passive millimeter-wave imaging system for concealed weapons and explosives detection (Invited Paper)", Proc. SPIE 5781, Optics and Photonics in Global Homeland Security, (19 May 2005); https://doi.org/10.1117/12.606661

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