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

被引：16

作者：

Kolinko, VG ^{[1
]}

Lin, SH ^{[1
]}

Shek, A ^{[1
]}

Manning, W ^{[1
]}

Martin, C ^{[1
]}

Hall, M ^{[1
]}

Kirsten, O ^{[1
]}

Moore, J ^{[1
]}

Wikner, DA ^{[1
]}

机构：

[1] Trex Enterprises Corp, San Diego, CA 92121 USA

来源：

Optics and Photonics in Global Homeland Security | 2005年 / 5781卷

关键词：

passive millimeter-wave imaging; thermal imaging; concealed object detection;

D O I：

10.1117/12.606661

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

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 1/30(th) 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.

引用

页码：85 / 92

页数：8

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