Vital Signal Detection Using Multi-Radar for Reductions in Body Movement Effects

Vital signal detection using multiple radars is proposed to reduce the signal degradation from a subject’s body movement. The phase variation in the transceiving signals of continuous-wave radar due to respiration and heartbeat is generated by the body surface movement of the organs monitored in the...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Ah-Jung Jang, In-Seong Lee, Jong-Ryul Yang
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	body movement cancelation continuous wave Doppler radar multiple radars vital signal detection heartbeat Chemical technology TP1-1185
Acceso en línea:	https://doaj.org/article/3d6f5d8fd2e94cd98d4d30993c7bcc2c
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:3d6f5d8fd2e94cd98d4d30993c7bcc2c
record_format	dspace
spelling	oai:doaj.org-article:3d6f5d8fd2e94cd98d4d30993c7bcc2c2021-11-11T19:19:21ZVital Signal Detection Using Multi-Radar for Reductions in Body Movement Effects10.3390/s212173981424-8220https://doaj.org/article/3d6f5d8fd2e94cd98d4d30993c7bcc2c2021-11-01T00:00:00Zhttps://www.mdpi.com/1424-8220/21/21/7398https://doaj.org/toc/1424-8220Vital signal detection using multiple radars is proposed to reduce the signal degradation from a subject’s body movement. The phase variation in the transceiving signals of continuous-wave radar due to respiration and heartbeat is generated by the body surface movement of the organs monitored in the line-of-sight (LOS) of the radar. The body movement signals obtained by two adjacent radars can be assumed to be the same over a certain distance. However, the vital signals are different in each radar, and each radar has a different LOS because of the asymmetric movement of lungs and heart. The proposed method uses two adjacent radars with different LOS to obtain correlated signals that reinforce the difference in the asymmetrical movement of the organs. The correlated signals can improve the signal-to-noise ratio in vital signal detection because of a reduction in the body movement effect. Two radars at different frequencies in the 5.8 GHz band are implemented to reduce direct signal coupling. Measurement results using the radars arranged at angles of 30°, 45°, and 60° showed that the proposed method can detect the vital signals with a mean accuracy of 97.8% for the subject moving at a maximum velocity of 53.4 mm/s.Ah-Jung JangIn-Seong LeeJong-Ryul YangMDPI AGarticlebody movement cancelationcontinuous waveDoppler radarmultiple radarsvital signal detectionheartbeatChemical technologyTP1-1185ENSensors, Vol 21, Iss 7398, p 7398 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	body movement cancelation continuous wave Doppler radar multiple radars vital signal detection heartbeat Chemical technology TP1-1185
spellingShingle	body movement cancelation continuous wave Doppler radar multiple radars vital signal detection heartbeat Chemical technology TP1-1185 Ah-Jung Jang In-Seong Lee Jong-Ryul Yang Vital Signal Detection Using Multi-Radar for Reductions in Body Movement Effects
description	Vital signal detection using multiple radars is proposed to reduce the signal degradation from a subject’s body movement. The phase variation in the transceiving signals of continuous-wave radar due to respiration and heartbeat is generated by the body surface movement of the organs monitored in the line-of-sight (LOS) of the radar. The body movement signals obtained by two adjacent radars can be assumed to be the same over a certain distance. However, the vital signals are different in each radar, and each radar has a different LOS because of the asymmetric movement of lungs and heart. The proposed method uses two adjacent radars with different LOS to obtain correlated signals that reinforce the difference in the asymmetrical movement of the organs. The correlated signals can improve the signal-to-noise ratio in vital signal detection because of a reduction in the body movement effect. Two radars at different frequencies in the 5.8 GHz band are implemented to reduce direct signal coupling. Measurement results using the radars arranged at angles of 30°, 45°, and 60° showed that the proposed method can detect the vital signals with a mean accuracy of 97.8% for the subject moving at a maximum velocity of 53.4 mm/s.
format	article
author	Ah-Jung Jang In-Seong Lee Jong-Ryul Yang
author_facet	Ah-Jung Jang In-Seong Lee Jong-Ryul Yang
author_sort	Ah-Jung Jang
title	Vital Signal Detection Using Multi-Radar for Reductions in Body Movement Effects
title_short	Vital Signal Detection Using Multi-Radar for Reductions in Body Movement Effects
title_full	Vital Signal Detection Using Multi-Radar for Reductions in Body Movement Effects
title_fullStr	Vital Signal Detection Using Multi-Radar for Reductions in Body Movement Effects
title_full_unstemmed	Vital Signal Detection Using Multi-Radar for Reductions in Body Movement Effects
title_sort	vital signal detection using multi-radar for reductions in body movement effects
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/3d6f5d8fd2e94cd98d4d30993c7bcc2c
work_keys_str_mv	AT ahjungjang vitalsignaldetectionusingmultiradarforreductionsinbodymovementeffects AT inseonglee vitalsignaldetectionusingmultiradarforreductionsinbodymovementeffects AT jongryulyang vitalsignaldetectionusingmultiradarforreductionsinbodymovementeffects
_version_	1718431522816524288

Vital Signal Detection Using Multi-Radar for Reductions in Body Movement Effects

Ejemplares similares