SYSTEMS AND METHODS FOR SUPPRESSING PEAKS IN A SEISMOCARDIOGRAM

The invention provides a seismocardiograph system, which includes an accelerometer, adapted to obtain accelerometer data from user, and a bandpass filter, adapted to filter the accelerometer data. Thesystem further includes an envelope filter, adapted to suppress S2 peaks in the band pass filtered accelerometer data, wherein the envelope filter comprises: a low-pass filter; and a comb filter, wherein the delay of the comb filter is tuned to a left ventricle ejection time (LVET). 本发明提供了一种心震图系统，所述心震图系统包括：加速度计，其适于获得来自用户的加速度计数据；以及带通滤波器，其适于对所述加速度计数据进行滤波。所述系统还包括：包络滤波器，其适于抑制经带通滤波的加速度计数据中的S2峰，其中，所述包络滤波器包括：低通滤波器；以及梳状滤波器，其中，所述梳状滤波器的延迟基于左心室射血时间(LVET)进行调谐。