Penetrating 3-D Imaging at 4-and 25-m Range Using a Submillimeter-Wave Radar

被引：287

作者：

Cooper, Ken B. ^{[1
]}

Dengler, Robert J. ^{[1
]}

Llombart, Nuria ^{[1
]}

Bryllert, Tomas ^{[1
]}

Chattopadhyay, Goutam ^{[1
]}

Schlecht, Erich ^{[1
]}

Gill, John ^{[1
]}

Lee, Choonsup ^{[1
]}

Skalare, Anders ^{[1
]}

Mehdi, Imran ^{[1
]}

Siegel, Peter H. ^{[1
,2
]}

机构：

[1] CALTECH, Jet Prop Lab, Pasadena, CA 91109 USA

[2] CALTECH, Dept Biol, Pasadena, CA 91125 USA

来源：

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES | 2008年 / 56卷 / 12期

基金：

美国国家航空航天局;

关键词：

Millimeter waves; submillimeter-wavelength imaging; terahertz radar; terharertz (THz);

D O I：

10.1109/TMTT.2008.2007081

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We show experimentally that a high-resolution imaging radar operating at 576-605 GHz is capable of detecting weapons concealed by clothing at standoff ranges of 4-25 m. We also demonstrate the critical advantage of 3-D image reconstruction for visualizing hidden objects using active-illumination coherent terahertz imaging. The present system can image a torso with <1 cm resolution at 4 in standoff in about five minutes. Greater standoff distances and much higher frame rates should be achievable by capitalizing on the bandwidth, output power, and compactness of solid state Schottky-diode based terahertz mixers and multiplied sources.

引用

页码：2771 / 2778

页数：8

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