T5.2.3 - Signal Averaging with Heartbeat Envelope for Non-Contact Heart Sound Measurement
- Event
- EUROSENSORS XXXVII
2025-09-07 - 2025-09-10
Wroclaw - Band
- Lectures
- Chapter
- T5.2 - Sensors for Medicine and Life-Sciences 1
- Author(s)
- S. Muramatsu, J. W. Fastier-Wooller, M. Yamamoto, T. Itoh - The University of Tokyo, Tokyo (Japan)
- Pages
- 134 - 135
- DOI
- 10.5162/EUROSENSORS2025/T5.2.3
- ISBN
- 978-3-910600-07-2
- Price
- free
Abstract
We propose a non-contact heart sound measurement method using signal averaging in conjunction withthe heartbeat envelope as a trigger. The performance of the heartbeat envelope was 0.01 s as thestandard deviation of the R-R interval estimation error, meeting the trigger requirement for our signal averaging method. The main component of the heart sound was extracted from a sound signal meas-ured 40 mm away from the chest wall.