Accurate heartbeat monitoring using ultra-wideband radar

Takuya Sakamoto; Ryohei Imasaka; Hirofumi Taki; Toru Sato; Mototaka Yoshioka; Kenichi Inoue; Takeshi Fukuda; Hiroyuki Sakai

doi:10.1587/elex.12.20141197

Accurate heartbeat monitoring using ultra-wideband radar

Takuya Sakamoto, Ryohei Imasaka, Hirofumi Taki, Toru Sato, Mototaka Yoshioka, Kenichi Inoue, Takeshi Fukuda, Hiroyuki Sakai

MEN - Biomedical Engineering

Research output: Contribution to journal › Article

20 Citations (Scopus)

Abstract

We demonstrate an accurate remote measurement of heartbeats using an ultra-wideband radar system. Although most conventional systems use either continuous waves or impulse-radio systems for remote vital monitoring, continuous waves suffer from non-stationary clutters, while impulse-radio systems cannot detect heartbeats. Our ultra-wideband radar system has a moderate fractional bandwidth intermediate of these systems, resulting in both the suppression of clutters and high sensitivity in measuring accurate heart rates even in a dynamic environment. A simultaneous measurement of the vital signal of a participant employing the ultra-wideband radar and electrocardiography reveals the high accuracy of the radar system in measuring the heart rate varying over time.

Original language	English
Article number	20141197
Journal	IEICE Electronics Express
Volume	12
Issue number	3
DOIs	https://doi.org/10.1587/elex.12.20141197
Publication status	Published - 2015 Jan 28

Keywords

And systems
Circuits
Heart rate Classification: Microwave and millimeter wave devices
Radar
Ultra-wideband
Vital monitoring

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Electrical and Electronic Engineering

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10.1587/elex.12.20141197

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Sakamoto, T., Imasaka, R., Taki, H., Sato, T., Yoshioka, M., Inoue, K., Fukuda, T., & Sakai, H. (2015). Accurate heartbeat monitoring using ultra-wideband radar. IEICE Electronics Express, 12(3), [20141197]. https://doi.org/10.1587/elex.12.20141197

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