使用线性相位滤波器减少心电图基线漂移
ECG baseline wander reduction using linear phase filters.
作者信息
van Alsté J A, van Eck W, Herrmann O E
出版信息
Comput Biomed Res. 1986 Oct;19(5):417-27. doi: 10.1016/0010-4809(86)90037-6.
PMID:3769470
Abstract
The continuous real time reduction of baseline wander is a considerable problem in electrocardiography during exercises. Our solution consists of spectral filtering. The legitimacy of high-pass filtering of the ECG by means of digital linear phase filters with a low cut-off frequency as high as the heart rate is shown. The specifications of these filters are derived from experimental results. Special hardware is presented that simultaneously performs the desired real-time filter operation in four ECG leads.
摘要
在运动心电图检查中，持续实时减少基线漂移是一个相当大的问题。我们的解决方案包括频谱滤波。结果表明，使用截止频率高达心率的数字线性相位滤波器对心电图进行高通滤波是合理的。这些滤波器的规格是根据实验结果得出的。本文介绍了一种特殊硬件，它能同时对四条心电图导联进行所需的实时滤波操作。
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