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Peak Detection Algorithm for Vital Sign Detection Using Doppler Radar Sensors †

An accurate method for detecting vital signs obtained from a Doppler radar sensor is proposed. A Doppler radar sensor can remotely obtain vital signs such as heartbeat and respiration rate, but the vital signs obtained by using the sensor do not show clear peaks like in electrocardiography (ECG) bec...

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Autores principales: Kim, Ju-Yeon, Park, Jae-Hyun, Jang, Se-Young, Yang, Jong-Ryul
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6480531/
https://www.ncbi.nlm.nih.gov/pubmed/30939799
http://dx.doi.org/10.3390/s19071575
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author Kim, Ju-Yeon
Park, Jae-Hyun
Jang, Se-Young
Yang, Jong-Ryul
author_facet Kim, Ju-Yeon
Park, Jae-Hyun
Jang, Se-Young
Yang, Jong-Ryul
author_sort Kim, Ju-Yeon
collection PubMed
description An accurate method for detecting vital signs obtained from a Doppler radar sensor is proposed. A Doppler radar sensor can remotely obtain vital signs such as heartbeat and respiration rate, but the vital signs obtained by using the sensor do not show clear peaks like in electrocardiography (ECG) because of the operating characteristics of the radar. The proposed peak detection algorithm extracts the vital signs from the raw data. The algorithm shows the mean accuracy of 96.78% compared to the peak count from the reference ECG sensor and a processing time approximately two times faster than the gradient-based algorithm. To verify whether heart rate variability (HRV) analysis similar to that with an ECG sensor is possible for a radar sensor when applying the proposed method, the continuous parameter variations of the HRV in the time domain are analyzed using data processed with the proposed peak detection algorithm. Experimental results with six subjects show that the proposed method can obtain the heart rate with high accuracy but cannot obtain the information for an HRV analysis because the proposed method cannot overcome the characteristics of the radar sensor itself.
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spelling pubmed-64805312019-04-29 Peak Detection Algorithm for Vital Sign Detection Using Doppler Radar Sensors † Kim, Ju-Yeon Park, Jae-Hyun Jang, Se-Young Yang, Jong-Ryul Sensors (Basel) Article An accurate method for detecting vital signs obtained from a Doppler radar sensor is proposed. A Doppler radar sensor can remotely obtain vital signs such as heartbeat and respiration rate, but the vital signs obtained by using the sensor do not show clear peaks like in electrocardiography (ECG) because of the operating characteristics of the radar. The proposed peak detection algorithm extracts the vital signs from the raw data. The algorithm shows the mean accuracy of 96.78% compared to the peak count from the reference ECG sensor and a processing time approximately two times faster than the gradient-based algorithm. To verify whether heart rate variability (HRV) analysis similar to that with an ECG sensor is possible for a radar sensor when applying the proposed method, the continuous parameter variations of the HRV in the time domain are analyzed using data processed with the proposed peak detection algorithm. Experimental results with six subjects show that the proposed method can obtain the heart rate with high accuracy but cannot obtain the information for an HRV analysis because the proposed method cannot overcome the characteristics of the radar sensor itself. MDPI 2019-04-01 /pmc/articles/PMC6480531/ /pubmed/30939799 http://dx.doi.org/10.3390/s19071575 Text en © 2019 by the authors. 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 (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Kim, Ju-Yeon
Park, Jae-Hyun
Jang, Se-Young
Yang, Jong-Ryul
Peak Detection Algorithm for Vital Sign Detection Using Doppler Radar Sensors †
title Peak Detection Algorithm for Vital Sign Detection Using Doppler Radar Sensors †
title_full Peak Detection Algorithm for Vital Sign Detection Using Doppler Radar Sensors †
title_fullStr Peak Detection Algorithm for Vital Sign Detection Using Doppler Radar Sensors †
title_full_unstemmed Peak Detection Algorithm for Vital Sign Detection Using Doppler Radar Sensors †
title_short Peak Detection Algorithm for Vital Sign Detection Using Doppler Radar Sensors †
title_sort peak detection algorithm for vital sign detection using doppler radar sensors †
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6480531/
https://www.ncbi.nlm.nih.gov/pubmed/30939799
http://dx.doi.org/10.3390/s19071575
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