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Portable Micro-Doppler Radar with Quadrature Radar Architecture for Non-Contact Human Breath Detection

Recently, rapid advances in radio detection and ranging (radar) technology applications have been implemented in various fields. In particular, micro-Doppler radar has been widely developed to perform certain tasks, such as detection of buried victims in natural disaster, drone system detection, and...

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Detalles Bibliográficos
Autores principales: Apriono, Catur, Muin, Fathul, Juwono, Filbert H.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8434153/
https://www.ncbi.nlm.nih.gov/pubmed/34502698
http://dx.doi.org/10.3390/s21175807
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author Apriono, Catur
Muin, Fathul
Juwono, Filbert H.
author_facet Apriono, Catur
Muin, Fathul
Juwono, Filbert H.
author_sort Apriono, Catur
collection PubMed
description Recently, rapid advances in radio detection and ranging (radar) technology applications have been implemented in various fields. In particular, micro-Doppler radar has been widely developed to perform certain tasks, such as detection of buried victims in natural disaster, drone system detection, and classification of humans and animals. Further, micro-Doppler radar can also be implemented in medical applications for remote monitoring and examination. This paper proposes a human respiration rate detection system using micro-Doppler radar with quadrature architecture in the industrial, scientific, and medical (ISM) frequency of 5.8 GHz. We use a mathematical model of human breathing to further explore any insights into signal processes in the radar. The experimental system is designed using the USRP B200 mini-module as the main component of the radar and the Vivaldi antennas working at 5.8 GHz. The radar system is integrated directly with the GNU Radio Companion software as the processing part. Using a frequency of 5.8 GHz and USRP output power of 0.33 mW, our proposed method was able to detect the respiration rate at a distance of 2 m or less with acceptable error. In addition, the radar system could differentiate different frequency rates for different targets, demonstrating that it is highly sensitive. We also emphasize that the designed radar system can be used as a portable device which offers flexibility to be used anytime and anywhere.
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spelling pubmed-84341532021-09-12 Portable Micro-Doppler Radar with Quadrature Radar Architecture for Non-Contact Human Breath Detection Apriono, Catur Muin, Fathul Juwono, Filbert H. Sensors (Basel) Article Recently, rapid advances in radio detection and ranging (radar) technology applications have been implemented in various fields. In particular, micro-Doppler radar has been widely developed to perform certain tasks, such as detection of buried victims in natural disaster, drone system detection, and classification of humans and animals. Further, micro-Doppler radar can also be implemented in medical applications for remote monitoring and examination. This paper proposes a human respiration rate detection system using micro-Doppler radar with quadrature architecture in the industrial, scientific, and medical (ISM) frequency of 5.8 GHz. We use a mathematical model of human breathing to further explore any insights into signal processes in the radar. The experimental system is designed using the USRP B200 mini-module as the main component of the radar and the Vivaldi antennas working at 5.8 GHz. The radar system is integrated directly with the GNU Radio Companion software as the processing part. Using a frequency of 5.8 GHz and USRP output power of 0.33 mW, our proposed method was able to detect the respiration rate at a distance of 2 m or less with acceptable error. In addition, the radar system could differentiate different frequency rates for different targets, demonstrating that it is highly sensitive. We also emphasize that the designed radar system can be used as a portable device which offers flexibility to be used anytime and anywhere. MDPI 2021-08-28 /pmc/articles/PMC8434153/ /pubmed/34502698 http://dx.doi.org/10.3390/s21175807 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Apriono, Catur
Muin, Fathul
Juwono, Filbert H.
Portable Micro-Doppler Radar with Quadrature Radar Architecture for Non-Contact Human Breath Detection
title Portable Micro-Doppler Radar with Quadrature Radar Architecture for Non-Contact Human Breath Detection
title_full Portable Micro-Doppler Radar with Quadrature Radar Architecture for Non-Contact Human Breath Detection
title_fullStr Portable Micro-Doppler Radar with Quadrature Radar Architecture for Non-Contact Human Breath Detection
title_full_unstemmed Portable Micro-Doppler Radar with Quadrature Radar Architecture for Non-Contact Human Breath Detection
title_short Portable Micro-Doppler Radar with Quadrature Radar Architecture for Non-Contact Human Breath Detection
title_sort portable micro-doppler radar with quadrature radar architecture for non-contact human breath detection
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8434153/
https://www.ncbi.nlm.nih.gov/pubmed/34502698
http://dx.doi.org/10.3390/s21175807
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