首页>
外国专利>
Bi-spectral filtering of electrocardiogram signals to determine selected QRS potentials
Bi-spectral filtering of electrocardiogram signals to determine selected QRS potentials
展开▼
机译:心电图信号的双谱滤波以确定选定的QRS电位
展开▼
页面导航
摘要
著录项
相似文献
摘要
Method and apparatus for analyzing electrocardiogram signals to ascertain any defects or abnormalities in heart activity. Sensed, orthogonal x, y and z input signals are processed to obtain QRS onset and then passed through first and second spectral filters having respective passbands of 70-200 hertz and 40-200 hertz in order to establish QRS offset and accurate determinations of RMS voltage values and (LAS) low amplitude signals in the terminal QRS portion of the ECG signal. A spectral filtering of the x, y and z input signals with 150-250 hertz bandpass window also allows determination of certain high frequency activity in the midportions of the QRS.
展开▼