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Matlab 梳状滤波器程序

于 2018-04-06 发布 文件大小:2KB
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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.)

文件列表:

Matlab 梳状滤波器程序\sz_filter.m, 5914 , 2012-04-12
Matlab 梳状滤波器程序, 0 , 2015-01-13

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  • tei_kr12
    FMCW调频连续波雷达的测距测角,可以得到很精确的幅值、频率、相位估计,有小波分析的盲信号处理。( FMCW frequency modulated continuous wave radar range and angular measurements, You can get a very accurate amplitude, frequency, phase estimation, There Wavelet Analysis Blind Signal Processing.)
    2017-05-27 14:13:25下载
    积分:1
  • ridge
    本人自己编写的小波变换脊提取程序,可用与信号分析.欢迎指导.(I have written wavelet transform ridge extraction procedures, can be used with the signal analysis. Welcomed the guidance.)
    2021-01-05 17:18:53下载
    积分:1
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    波的合成及拍频现象实例,输入两正弦波的振幅、初相位及频率观察波的合成及拍频现象(Synthesis and beat frequency wave phenomena instance, enter the two sine wave amplitude, initial phase and frequency of observation of waves synthesis and beat frequency phenomenon)
    2009-09-30 08:41:52下载
    积分:1
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    2011-09-27 22:30:14下载
    积分:1
  • shiyan
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    Wavelet Neural networks
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    matlab程序,X-CT图像处理,用小波分解去除噪声(matlab program, X-CT image processing, noise removal by wavelet decomposition)
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    说明:  提出了一种基于复解析小波变换的相位诊断齿轮故障的方法。复解析小波变换将Hilbert变换与小波分析紧密结合在一起,具有自适应分析能力。利用复解析小波变换得到齿轮振动信号的相位,其功率谱图上可提取调制边频带结构来识别故障模式。试验结果表明这种方法可有效应用于齿轮局部故障诊断中。(A new method using the phase based on complex analytical wavelet transform for fault diagnosis of gears was proposed. The phase of vibration signals of gears is got by complex analytical wavelet transform, which combines Hilbert transform with wavelet transform tightly and possesses adaptive analysis ability. By making spectrum analysis of the phase, the sideband structure in power spectrum can be protruded, and the fault pattern can be identified. Experimental results show that the proposed method is effective in local defect detection of gears.)
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