Heart Sound Detection Using an Ultra-Wideband FMCW Radar

Volume
2023-June
Citation
IEEE/MTT-S International Microwave Symposium (IMS 2023)
Contribution to Conference
IEEE/MTT-S International Microwave Symposium, IMS 2023 
Publisher DOI
10.1109/IMS37964.2023.10188202
Scopus ID
2-s2.0-85168541300
ISBN
9798350347647
This paper investigates the detection of vital signs with an ultra-wideband frequency modulated continuous wave (FMCW) radar. In addition to respiration and pulse wave signals, the heart sound signal is retrieved, which has so far only been achieved with CW radars. Proof-of-concept measurements were performed with a subject seated 0.5 m away from the radar. With respect to a reference electrocardiography (ECG), a high accuracy of 95.7% was achieved for the instantaneous beat-to-beat heart rate.
Schlagworte
FMCW radar
heart sound detection
ultra-wideband radar
vital sign detection