[Study on abstracting method of high frequency components of ECG]

This paper presents a method to abstract high frequency components from ECG. A new signal averaging method based on vectorcardiographic loop matched alignment is proposed. It improves the crucial estimation of signal averaging and ensures that every one of the cardiographic signals participating in signal averaging comes from the same heart beat, so that each of three leads at least has uniform low pass filter effect. These conclusions have been confirmed by the analysis of ECG in clinical test.