关键词: 三轴ACC, 容积脉搏波（PPG）, 实时小波, 智能穿戴, 运动干扰

Abstract: When extracting motion heart rate on the base of PPG, measurement result of conventional heart-rate extraction algorithm faces large error and bad real-time performance problems due to motion noise interference, a real-time heart rate extraction method of anti-motion interference is then presented. By using real-time wavelet de-noising, classifying and then training motion by combining ACC, heart rate gain of each motion status is calculated and real-time heart rate is compensated in the method. It is indicated by experimental result that, when compared with real-time heart rate calculated by using EGG signals collected at the same time, the absolute error rate is just around 1.2%. When compared with conventional heart rate extraction algorithm, the method is characterized with strong anti-interference and accurate real-time performance.

Key words: triaxial-acc, Photoplethysmography（PPG）, real-time wavelet, smart wear, motion interferene