An Improved Method of Heart Rate Extraction Algorithm Based on Photoplethysmography for Sports Bracelet
acupatch Heart rate measurement employing photoplethysmography (PPG) is a prevalent technique for wearable devices.However, the acquired PPG signal is often contaminated with motion artifacts, which need to be accurately removed.In cases where the PPG and accelerometer (ACC) spectra overlap at the actual heart rate, traditional discrete Fourier tra