[1]申玉静,王寻,唐闽.最优改进对数谱幅度估计与小波结合的心音降噪[J].中国医学物理学杂志,2020,37(10):1287-1292.[doi:DOI:10.3969/j.issn.1005-202X.2020.10.013]
 SHEN Yujing,WANG Xun,TANG Min.Combination of optimally-modified log-spectral amplitude estimator and wavelet for heart sound denoising[J].Chinese Journal of Medical Physics,2020,37(10):1287-1292.[doi:DOI:10.3969/j.issn.1005-202X.2020.10.013]
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最优改进对数谱幅度估计与小波结合的心音降噪()
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《中国医学物理学杂志》[ISSN:1005-202X/CN:44-1351/R]

卷:
37
期数:
2020年第10期
页码:
1287-1292
栏目:
医学信号处理与医学仪器
出版日期:
2020-10-29

文章信息/Info

Title:
Combination of optimally-modified log-spectral amplitude estimator and wavelet for heart sound denoising
文章编号:
1005-202X(2020)10-1287-06
作者:
申玉静1王寻23唐闽1
1.中国医学科学院阜外医院心律失常中心, 北京 100037; 2.上海电机学院智能制造(中德)学院, 上海 201306; 3.中国科学院声学研究所语言声学与内容理解重点实验室, 北京 100190
Author(s):
SHEN Yujing1 WANG Xun23 TANG Min1
1. Center of Arrhythmia, Fuwai Hospital, Chinese Academy of Medical Sciences, Beijing 100037, China 2. School of Intelligent Manufacturing and CDKIP, Shanghai Dianji University, Shanghai 201306, China 3. Key Laboratory of Speech Acoustics and Content Understanding, Institute of Acoustics, Chinese Academy of Sciences, Beijing 100190, China
关键词:
心音降噪小波阈值最优改进对数谱幅度估计
Keywords:
Keywords: heart sound denoising wavelet thresholding optimally-modified log-spectral amplitude estimator
分类号:
R318;R452.5
DOI:
DOI:10.3969/j.issn.1005-202X.2020.10.013
文献标志码:
A
摘要:
小波阈值降噪为心音降噪的一种常用方法。本文提出了使用最优改进对数幅度谱估计与小波阈值降噪相结合的方法对心音降噪。在正常心音和一些常见疾病的心音中加入不同强度的白噪声和粉红噪声,构造不同信噪比的心音信号,并将本文所提出的方法和仅用小波阈值降噪方法的去噪效果进行了定量的对比。结果表明本文方法降噪效果总体优于仅使用小波阈值降噪达到的效果。
Abstract:
Abstract: Wavelet thresholding is a frequently-used method for heart sounds denoising. Herein optimally-modified log-spectral amplitude estimator is combined with wavelet thresholding to remove heart sound noises. After that the white noises and pink noises of different intensities are artificially added into normal heart sounds and the heart sounds of some common diseases to construct heart sounds of different signal-to-noise rates, traditional wavelet thresholding and the proposed method are used for heart sounds denoising. The quantitative comparison results show that the denoising effect of the proposed method is better than that of traditional wavelet thresholding.

相似文献/References:

[1]郁伟,李正权,邢松.改进WOA-VMD算法的心电信号去噪[J].中国医学物理学杂志,2023,40(9):1143.[doi:DOI:10.3969/j.issn.1005-202X.2023.09.014]
 YU Wei,LI Zhengquan,XING Song,et al.ECG signal denoising using improved WOA-VMD algorithm[J].Chinese Journal of Medical Physics,2023,40(10):1143.[doi:DOI:10.3969/j.issn.1005-202X.2023.09.014]
[2]冯帅,刘飞飞,伍昕宇,等.基于最小均方误差对数谱幅度估计的心音降噪算法[J].中国医学物理学杂志,2023,40(11):1370.[doi:DOI:10.3969/j.issn.1005-202X.2023.11.009]
 FENG Shuai,LIU Feifei,WU Xinyu,et al.Heart sound denoising algorithm based on minimum mean-square error log-spectral amplitude estimation[J].Chinese Journal of Medical Physics,2023,40(10):1370.[doi:DOI:10.3969/j.issn.1005-202X.2023.11.009]

备注/Memo

备注/Memo:
【收稿日期】2020-04-15 【基金项目】国家自然科学基金(11864007, 61527811) 【作者简介】申玉静,主治医师,主要研究方向为心律失常的起搏器治疗,E-mail: shenyj0328@126.com 【通信作者】王寻,讲师,博士后,研究方向:心音信号处理,E-mail: wangxunweihua@163.com;唐闽,主任医师,研究方向:心房颤动、室早、房早等心律失常的消融治疗,E-mail: doctortangmin@hotmail.com
更新日期/Last Update: 2020-10-29