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已有的时序相干平均和空间平均法提取希氏束电图存在不少缺点。本文提出应用时序自适应滤波法来增强由体表测得的心电信号中各个周期的希氏束电图,因而能在临床环境下观察各个心拍中的希氏束电图。心电信号经过高通滤波以清除T波。一个分离的连续自适应滤波器专用于抑制共模信号。随机噪声则由一时序自适应滤波器消除。应用自适应滤波方法需要两个高增益、高频率的ECG输入通道:一个作
There are many shortcomings in the existing sequential coherent averaging and spatiotemporal extraction of His bundle beam. In this paper, the application of time series adaptive filtering method to enhance the body surface measured by the ECG signal of each cycle of His bundle electrogram, which can be observed in the clinical environment of each heart beat His bundle. ECG after high-pass filter to clear the T wave. A separate continuous adaptive filter is dedicated to suppressing common-mode signals. Random noise is removed by a timing adaptive filter. Application of adaptive filtering requires two high-gain, high-frequency ECG input channels: one for