Takla George F, Nair Bala G, Loparo Kenneth A
Div. of Anesthesiology, Cleveland Clinic, OH 44195, USA.
Conf Proc IEEE Eng Med Biol Soc. 2006;2006:1686-9. doi: 10.1109/IEMBS.2006.259496.
In this paper we develop an approach to synthesize a wavelet that matches the ECG signal. Matching a wavelet to a signal of interest has potential advantages in extracting signal features with greater accuracy, particularly when the signal is contaminated with noise. The approach that we have taken is based on the theoretical work done by Chapa and Rao. We have applied their technique to a noise-free ECG signal representing one cardiac cycle. Results indicate that a matched wavelet, that was able to capture the broad ECG features, could be obtained. Such a wavelet could be used to extract ECG features such as QRS complexes and P&T waves with greater accuracy.
在本文中,我们开发了一种合成与心电图(ECG)信号匹配的小波的方法。将小波与感兴趣的信号进行匹配在更准确地提取信号特征方面具有潜在优势,特别是当信号被噪声污染时。我们采用的方法基于查帕(Chapa)和拉奥(Rao)所做的理论工作。我们已将他们的技术应用于表示一个心动周期的无噪声ECG信号。结果表明,可以获得能够捕捉ECG广泛特征的匹配小波。这样的小波可用于更准确地提取诸如QRS复合波和P波及T波等ECG特征。