Educational Low-Cost C-Band FMCW Radar System Comprising Commercial Off-the-Shelf Components for Indoor Through-Wall Object Detection

This paper presents an educational low-cost C-band frequency-modulated continuous wave (FMCW) radar system for use in indoor through-wall metal detection. Indoor remote-sensing applications, such as through-wall detection and positioning, are essential for the comprehensive realization of the intern...

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Autores principales:	Hyunmin Jeong, Sangkil Kim
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	FMCW radar system remote sensing Arduino through-wall detection Electronics TK7800-8360
Acceso en línea:	https://doaj.org/article/c6ad0d42f2c14b908708e1303490fc94
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id	oai:doaj.org-article:c6ad0d42f2c14b908708e1303490fc94
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spelling	oai:doaj.org-article:c6ad0d42f2c14b908708e1303490fc942021-11-25T17:24:24ZEducational Low-Cost C-Band FMCW Radar System Comprising Commercial Off-the-Shelf Components for Indoor Through-Wall Object Detection10.3390/electronics102227582079-9292https://doaj.org/article/c6ad0d42f2c14b908708e1303490fc942021-11-01T00:00:00Zhttps://www.mdpi.com/2079-9292/10/22/2758https://doaj.org/toc/2079-9292This paper presents an educational low-cost C-band frequency-modulated continuous wave (FMCW) radar system for use in indoor through-wall metal detection. Indoor remote-sensing applications, such as through-wall detection and positioning, are essential for the comprehensive realization of the internet of things or super-connected societies. The proposed system comprises a two-stage radio-frequency power amplifier, a voltage-controlled oscillator, circuits for frequency modulation and system synchronization, a mixer, a 3-dB power divider, a low-noise amplifier, and two cylindrical horn antennas (Tx/Rx antennas). The antenna yields gain values in the 6.8~7.8 range when operating in the 5.83~5.94 GHz frequency band. The backscattered Tx signal is sampled at 4.5 kHz using the Arduino UNO analog-to-digital converter. Thereafter, the sampled signal is transferred to the MATLAB platform and analyzed using a customized FMCW radar algorithm. The proposed system is built using commercial off-the-shelf components, and it can detect targets within a 56.3 m radius in indoor environments. In this study, the system could successfully detect targets through a 4 cm-thick ply board with a measurement accuracy of less than 10 cm.Hyunmin JeongSangkil KimMDPI AGarticleFMCW radar systemremote sensingArduinothrough-wall detectionElectronicsTK7800-8360ENElectronics, Vol 10, Iss 2758, p 2758 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	FMCW radar system remote sensing Arduino through-wall detection Electronics TK7800-8360
spellingShingle	FMCW radar system remote sensing Arduino through-wall detection Electronics TK7800-8360 Hyunmin Jeong Sangkil Kim Educational Low-Cost C-Band FMCW Radar System Comprising Commercial Off-the-Shelf Components for Indoor Through-Wall Object Detection
description	This paper presents an educational low-cost C-band frequency-modulated continuous wave (FMCW) radar system for use in indoor through-wall metal detection. Indoor remote-sensing applications, such as through-wall detection and positioning, are essential for the comprehensive realization of the internet of things or super-connected societies. The proposed system comprises a two-stage radio-frequency power amplifier, a voltage-controlled oscillator, circuits for frequency modulation and system synchronization, a mixer, a 3-dB power divider, a low-noise amplifier, and two cylindrical horn antennas (Tx/Rx antennas). The antenna yields gain values in the 6.8~7.8 range when operating in the 5.83~5.94 GHz frequency band. The backscattered Tx signal is sampled at 4.5 kHz using the Arduino UNO analog-to-digital converter. Thereafter, the sampled signal is transferred to the MATLAB platform and analyzed using a customized FMCW radar algorithm. The proposed system is built using commercial off-the-shelf components, and it can detect targets within a 56.3 m radius in indoor environments. In this study, the system could successfully detect targets through a 4 cm-thick ply board with a measurement accuracy of less than 10 cm.
format	article
author	Hyunmin Jeong Sangkil Kim
author_facet	Hyunmin Jeong Sangkil Kim
author_sort	Hyunmin Jeong
title	Educational Low-Cost C-Band FMCW Radar System Comprising Commercial Off-the-Shelf Components for Indoor Through-Wall Object Detection
title_short	Educational Low-Cost C-Band FMCW Radar System Comprising Commercial Off-the-Shelf Components for Indoor Through-Wall Object Detection
title_full	Educational Low-Cost C-Band FMCW Radar System Comprising Commercial Off-the-Shelf Components for Indoor Through-Wall Object Detection
title_fullStr	Educational Low-Cost C-Band FMCW Radar System Comprising Commercial Off-the-Shelf Components for Indoor Through-Wall Object Detection
title_full_unstemmed	Educational Low-Cost C-Band FMCW Radar System Comprising Commercial Off-the-Shelf Components for Indoor Through-Wall Object Detection
title_sort	educational low-cost c-band fmcw radar system comprising commercial off-the-shelf components for indoor through-wall object detection
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/c6ad0d42f2c14b908708e1303490fc94
work_keys_str_mv	AT hyunminjeong educationallowcostcbandfmcwradarsystemcomprisingcommercialofftheshelfcomponentsforindoorthroughwallobjectdetection AT sangkilkim educationallowcostcbandfmcwradarsystemcomprisingcommercialofftheshelfcomponentsforindoorthroughwallobjectdetection
_version_	1718412436258684928

Educational Low-Cost C-Band FMCW Radar System Comprising Commercial Off-the-Shelf Components for Indoor Through-Wall Object Detection

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