文章基本信息

标题：Comparison of Wavelet Types and Thresholding Methods on Wavelet Based Denoising of Heart Sounds
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作者：Burhan Ergen
期刊名称：Journal of Signal and Information Processing
印刷版ISSN：2159-4465
电子版ISSN：2159-4481
出版年度：2013
卷号：04
期号：03
页码：164-167
DOI：10.4236/jsip.2013.43B029
语种：English
出版社：Scientific Research Publishing
摘要：This paper focuses on the denoising of phonocardiogram (PCG) signals by means of discrete wavelet transform (DWT) using different wavelets and noise level estimation methods. The signal obtained by denoising from PCG signal contaminated white noise and the original PCG signal is compared to determine the appropriate parameters for denoising. The comparison is evaluated in terms of signal to noise ratio (SNR) before and after denoising. The results showed that the decomposition level is the most important parameter determining the denoising quality.
关键词：Discrete Wavelet Transform; Denoising; PCG