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

Cooper, Ken B. and Dengler, Robert J. and Llombart, Nuria and Bryllert, Tomas and Chattopadhyay, Goutam and Schlecht, Erich and Gill, John and Lee, Choonsup and Skalare, Anders and Mehdi, Imran and Siegel, Peter H. (2008) Penetrating 3-D Imaging at 4- and 25-m Range Using a Submillimeter-Wave Radar. IEEE Transactions on Microwave Theory and Techniques, 56 (12, Pa). pp. 2771-2778. ISSN 0018-9480. https://resolver.caltech.edu/CaltechAUTHORS:COOieeemtt08

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Abstract

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 m 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.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1109/TMTT.2008.2007081DOIArticle
ORCID:
AuthorORCID
Chattopadhyay, Goutam0000-0001-7942-5025
Siegel, Peter H.0000-0002-2539-4646
Additional Information:© 2008 IEEE. Reprinted with permission. Manuscript received April 10, 2008; revised September 10, 2008. First published November 18, 2008; current version published December 05, 2008. This work was supported by the National Aeronautics and Space Administration (NASA) under a contract, by the Division of Biology, California Institute of Technology, by the Naval Explosive Ordnance Disposal Technology Division with funding provided by the Department of Defense (DoD) Physical Security Equipment Action Group (PSEAG). The authors wish to thank Dr. J. Ward of the Jet Propulsion Laboratory (JPL), Pasadena, CA, for providing the 600 GHz sources.
Funders:
Funding AgencyGrant Number
NASAUNSPECIFIED
Department of DefenseUNSPECIFIED
Subject Keywords:Millimeter waves; submillimeter-wavelength imaging; terahertz radar; terharertz (THz)
Issue or Number:12, Pa
Record Number:CaltechAUTHORS:COOieeemtt08
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:COOieeemtt08
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:13059
Collection:CaltechAUTHORS
Deposited By: Archive Administrator
Deposited On:16 Jan 2009 23:25
Last Modified:09 Mar 2020 13:19

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