Dual Channel S-Band Frequency Modulated Continuous Wave Through-Wall Radar Imaging

This article deals with the development of a dual channel S-Band frequency-modulated continuous wave (FMCW) system for a through-the-wall imaging (TWRI) system. Most existing TWRI systems using FMCW were developed for synthetic aperture radar (SAR) which has many drawbacks such as the need for sever...

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Main Authors: Ying-Chun Li, Daegun Oh, Sunwoo Kim, Jong-Wha Chong
Format: Article
Language:English
Published: MDPI AG 2018-01-01
Series:Sensors
Subjects:
Online Access:http://www.mdpi.com/1424-8220/18/1/311
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author Ying-Chun Li
Daegun Oh
Sunwoo Kim
Jong-Wha Chong
author_facet Ying-Chun Li
Daegun Oh
Sunwoo Kim
Jong-Wha Chong
author_sort Ying-Chun Li
collection DOAJ
description This article deals with the development of a dual channel S-Band frequency-modulated continuous wave (FMCW) system for a through-the-wall imaging (TWRI) system. Most existing TWRI systems using FMCW were developed for synthetic aperture radar (SAR) which has many drawbacks such as the need for several antenna elements and movement of the system. Our implemented TWRI system comprises a transmitting antenna and two receiving antennas, resulting in a significant reduction of the number of antenna elements. Moreover, a proposed algorithm for range-angle-Doppler 3D estimation based on a 3D shift invariant structure is utilized in our implemented dual channel S-band FMCW TWRI system. Indoor and outdoor experiments were conducted to image the scene beyond a wall for water targets and person targets, respectively. The experimental results demonstrate that high-quality imaging can be achieved under both experimental scenarios.
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spelling doaj.art-e656c2db784249409c93d58d3a0044e02022-12-22T04:24:08ZengMDPI AGSensors1424-82202018-01-0118131110.3390/s18010311s18010311Dual Channel S-Band Frequency Modulated Continuous Wave Through-Wall Radar ImagingYing-Chun Li0Daegun Oh1Sunwoo Kim2Jong-Wha Chong3Department of Electronic Engineering, Hanyang University, Seoul 04763, KoreaCollaborative Robots Research Center, Daegu Gyeongbuk Institute of Science and Technology, Daegu 42988, KoreaDepartment of Electronic Engineering, Hanyang University, Seoul 04763, KoreaDepartment of Electronic Engineering, Hanyang University, Seoul 04763, KoreaThis article deals with the development of a dual channel S-Band frequency-modulated continuous wave (FMCW) system for a through-the-wall imaging (TWRI) system. Most existing TWRI systems using FMCW were developed for synthetic aperture radar (SAR) which has many drawbacks such as the need for several antenna elements and movement of the system. Our implemented TWRI system comprises a transmitting antenna and two receiving antennas, resulting in a significant reduction of the number of antenna elements. Moreover, a proposed algorithm for range-angle-Doppler 3D estimation based on a 3D shift invariant structure is utilized in our implemented dual channel S-band FMCW TWRI system. Indoor and outdoor experiments were conducted to image the scene beyond a wall for water targets and person targets, respectively. The experimental results demonstrate that high-quality imaging can be achieved under both experimental scenarios.http://www.mdpi.com/1424-8220/18/1/3113D shift invariantTWRIFMCWdual channel
spellingShingle Ying-Chun Li
Daegun Oh
Sunwoo Kim
Jong-Wha Chong
Dual Channel S-Band Frequency Modulated Continuous Wave Through-Wall Radar Imaging
Sensors
3D shift invariant
TWRI
FMCW
dual channel
title Dual Channel S-Band Frequency Modulated Continuous Wave Through-Wall Radar Imaging
title_full Dual Channel S-Band Frequency Modulated Continuous Wave Through-Wall Radar Imaging
title_fullStr Dual Channel S-Band Frequency Modulated Continuous Wave Through-Wall Radar Imaging
title_full_unstemmed Dual Channel S-Band Frequency Modulated Continuous Wave Through-Wall Radar Imaging
title_short Dual Channel S-Band Frequency Modulated Continuous Wave Through-Wall Radar Imaging
title_sort dual channel s band frequency modulated continuous wave through wall radar imaging
topic 3D shift invariant
TWRI
FMCW
dual channel
url http://www.mdpi.com/1424-8220/18/1/311
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AT jongwhachong dualchannelsbandfrequencymodulatedcontinuouswavethroughwallradarimaging