PPG Anomaly Detection Method Based on Random Matrix

Due to the characteristics of PPG signal vulnerable to interference, this paper proposes a PPG signal anomaly detection method based on random matrix. As an unsupervised method, this algorithm can not only effectively monitor abnormal signals, but also locate abnormal positions in PPG signals, avoiding a series of shortcomings of traditional unsupervised anomaly detection that cannot adapt to big data situations, high data requirements, and one-dimensional data detection. As a result,the proposed method, has high efficiency for PPG signal anomaly detection.