Design of PPG Based Heart Rate Sensor Enabling Motion Artifact Cancellation
We have proposed a photoplethysmography (PPG) based heart rate sensor which is equipped with a normal PPG sensor and a motion artifact sensor to be able to cancel motion artifact induced during exercise. It has two critical design parameters such as the height of the motion artifact sensor and the distance between the motion artifact sensor and the normal PPG sensor. This paper tries to determine the two parameters by experiments with a subject.