Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Can the IR-UWB Radar Sensor Substitute the PSG-Based Primary Vital Signs’ Measurements?

Anastasia Pentari
* ,
George Rigas
,
Adamantios Ntanis
ORCID logo ,
Thomas Kassiotis
,
Dimitris Manousos
,
Evangelia Florou
,
Emmanouil Vagiakis
,
Dimitrios I. Fotiadis
,
Manolis Tsiknakis
ORCID logo
Version 1 : Received: 20 June 2023 / Approved: 21 June 2023 / Online: 25 June 2023 (08:33:47 CEST)

How to cite: Pentari, A.; Rigas, G.; Ntanis, A.; Kassiotis, T.; Manousos, D.; Florou, E.; Vagiakis, E.; Fotiadis, D.I.; Tsiknakis, M. Can the IR-UWB Radar Sensor Substitute the PSG-Based Primary Vital Signs’ Measurements?. Preprints 2023, 2023061534. https://doi.org/10.20944/preprints202306.1534.v1 Pentari, A.; Rigas, G.; Ntanis, A.; Kassiotis, T.; Manousos, D.; Florou, E.; Vagiakis, E.; Fotiadis, D.I.; Tsiknakis, M. Can the IR-UWB Radar Sensor Substitute the PSG-Based Primary Vital Signs’ Measurements?. Preprints 2023, 2023061534. https://doi.org/10.20944/preprints202306.1534.v1

Abstract

The last decade the impulse-radio ultra-wideband (IR-UWB) radar sensors have tended to substitute the gold standard, polysomnography (PSG), for the acquisition of the primary vital signs of the human body. However, the main drawback of the radar sensor is its sensitivity to the environmental noise and body motion. In this work, we aim to investigate whether radar sensor recordings of the chest and heart motion can be accurate substitutes to the PSG chest and heartbeat signals measurements. In terms of this scientific issue, we develop an innovative pipeline of handling the radar-based recordings, which includes: (a) the motion detection, (b) the extraction of the respiration, heartbeat and activity vital signs and (c) the estimation of the respiratory and heartbeat rates, i.e., the RR and HR, respectively. Our experimental results, applying our proposed methodology to 5 subjects during their sleep, showed that the radar sensor’s measurements can be comparative to the those producted by the PSG. Moreover, the corresponding RR and HR frequencies were proven to have Pearson’s correlation, between the radar and the PSG, greater than 0.9 and 0.78, respectively. Finally, the relative errors between the PSG, and the radar-based RR and HR rates were proven to be less than 6% and 10%, respectively.

Keywords

IR-UWB radar; polysomnography; spectrograms; respiratory rate; heartbeat rate

Subject

Public Health and Healthcare, Health Policy and Services

Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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