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Wavelet_denoising

于 2010-06-01 发布文件大小:221KB

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下载积分: 1 下载次数: 202

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代码说明：

小波变换的MATLAB源程序，使用语语音增强，去除噪声效果好，算法实现简单，清晰(MATLAB source wavelet transform, using language speech enhancement, noise removal effect, algorithm is simple and clear)

文件列表：

Wavelet_denoising
.................\COMPARE.M,1905,2003-10-13
.................\compile.m,2257,2002-11-12
.................\Contents.m,688,2002-11-18
.................\daubcqf.m,3918,2002-11-12
.................\denoise.m,9132,2002-11-12
.................\ex.m,1009,2004-03-01
.................\ex1.m,409,2004-03-01
.................\find_syll.m,1583,2003-10-13
.................\HardTh.m,3117,2002-11-12
.................\htm" target=_blank>INSTALL,827,2002-11-12
.................\INSTALL_PRECOMPILED.txt,415,2003-10-13
.................\late_noise.wav,163870,2004-03-01
.................\htm" target=_blank>LICENSE,2094,2002-11-18
.................\MAIN.M,1294,2004-02-29
.................\makesig.m,7236,2002-11-12
.................\mdwt.c,2799,2002-11-12
.................\mdwt.dll,8192,2004-03-02
.................\mdwt.m,4934,2002-11-12
.................\mdwt_r.c,5826,2002-11-12
.................\midwt.c,2749,2002-11-12
.................\midwt.dll,8704,2004-03-02
.................\midwt.m,3655,2002-11-12
.................\midwt_r.c,6250,2002-11-12
.................\mirdwt.c,3196,2002-11-12
.................\mirdwt.dll,9216,2004-03-02
.................\mirdwt.m,5210,2002-11-12
.................\mirdwt_r.c,7607,2002-11-12
.................\mrdwt.c,2901,2002-11-12
.................\mrdwt.dll,8704,2004-03-02
.................\mrdwt.m,5068,2002-11-12
.................\mrdwt_r.c,7253,2002-11-12
.................\normalize.m,176,2004-02-29
.................\htm" target=_blank>README,1082,2002-11-12
.................\setopt.m,2986,2002-11-12
.................\SoftTh.m,3276,2002-11-12
.................\two_axes.m,3689,2004-03-01
.................\Wavelet_Denoise.fig,67392,2004-11-11
.................\wavelet_denoise.m,12139,2004-11-11
.................\ZERO_PAD.M,215,2003-10-13

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Desktop
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2012-02-02 15:25:22下载

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心电图(ECG)是临床上诊断心血管疾病的重要方法。数字滤波作为数字信号处理技术的重要组成部分，广泛应用于诸如信号分离、恢复、整形等多种场合中。为了使信号不失真及在可编程逻辑器件中容易实现，采用具有严格线性相位特性的FIR滤波器进行低通滤波（0-150Hz），用整系数梳状滤波器来去工频干扰及基线漂移,从而达到对心电信号进行预处理的目的。(Electrocardiogram (ECG) is an important method for clinical diagnosis of cardiovascular diseases. As an important part of digital signal processing technology, digital filtering is widely applied to many occasions, such as signal separation, recovery, shaping and so on. In order to make the signal undistorted and easy to be realized in programmable logic device, the FIR filter with strict linear phase characteristics is used for low pass filtering (0-150Hz), and the entire coefficient comb filter is used to get the interference of the power frequency and the baseline drift, thus the purpose of preprocessing the ECG signal is achieved.)

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BBS
时频分析代码，希望对大家有用，关于盲源分离的基础知识(Time frequency analysis code, we hope to be useful to everyone, about the basic knowledge of blind source separation.)

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Wavelet_denoising
小波变换的MATLAB源程序，使用语语音增强，去除噪声效果好，算法实现简单，清晰(MATLAB source wavelet transform, using language speech enhancement, noise removal effect, algorithm is simple and clear)

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可导入comtrade格式录波文件，进行谐波分析(It can import COMTRADE format recording file for harmonic analysis)

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