Novel Ambient Light Rejection System for PPG-based Measurement Devices
Loading...
Author
Theurillat, Patrick
Rincon Gil, Edgar Virgilio
Gentsch, Roland
Correvon, Marc
Persechini, Pascal
Rüedi, Pierre-François
Solà, Josep
DOI
Abstract
Photoplethysmography (PPG) is becoming the standard technology for heart rate measurements in wearables because of its ease of use. Nowadays, numerous commercial off-the-shelf (COTS) analog front end (AFE) components dedicated to PPG are available. However, in everyday use cases, insufficient ambient light rejection (ALR) leads to poor AFE performances and subsequent inaccurate heart rate estimations. The results of a novel approach that solves ALR issues in daily life use cases are presented herein. CSEM has been active in the domain of PPG sensing and processing for more than 15 years, covering R&D activities ranging from optical design, AFE development, and embedded algorithms to application-specific integrated circuit (ASIC) implementation.
Publication Reference
CSEM Scientific and Technical Report 2016, p. 89
Year
2016