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Comparison between different wavelet transforms and thresholding techniques for ECG denoising

机译:ECG去噪的不同小波变换和阈值技术的比较

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ECG Signal holds critical information regarding the physiology and pathological functions of heart. Quite often, they get corrupted by different type of noises, so to get proper information, it is essential to perform the denoising. This paper discusses the denoising of three different type of noises which generally corrupts the ECG signal viz. power line interference, baseline drift noise and EMG (wideband stochastic) noise. The denoising is performed over these noisy signals using five different thresholding techniques clubbed with ten different wavelet transform functions from the wavelet family. Finally, for each type of noise the optimized combination of thresholding technique and wavelet function is suggested.
机译:心电图信号保存有关心脏的生理和病理功能的重要信息。通常,它们会因不同类型的噪声而损坏,因此要获得正确的信息,执行降噪至关重要。本文讨论了通常会损坏ECG信号的三种不同类型噪声的降噪。电力线干扰,基线漂移噪声和EMG(宽带随机)噪声。使用五种不同的阈值技术对这些噪声信号进行去噪,这些阈值技术结合了来自小波家族的十种不同的小波变换函数。最后,针对每种类型的噪声,提出了阈值技术和小波函数的优化组合。

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