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EMDdenoise

于 2013-09-06 发布 文件大小:6KB
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代码说明:

  一种基于EMD分解后对imf分量利用小波分解进行去噪的方法,给出了相应的例子,有注释(Based on the EMD decomposition after the imf component by using the method of wavelet decomposition denoising, corresponding examples are given, with comments)

文件列表:

EMDdenoise
..........\EMDdenoise.m,19808,2009-04-12
..........\example.m,712,2009-04-12

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  • wavelet
    说明:  matlab 小波分析源码 小波去噪 仿真分析(matlab source wavelet analysis wavelet denoising simulation analysis)
    2008-11-21 22:31:07下载
    积分:1
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    该源代码又称双树复小波变换源代码,它不仅具有Gabor变换的六个方向选择性,而且有更小的冗余度,对图像处理的同行们肯定有很大的价值,可直接下载使用。(The source code also known as the Dual-Tree Complex Wavelet Transform source code, it not only has the Gabor transform of the six direction selectivity, but also has a smaller redundancy of image processing colleagues certainly have great value, can directly download使用.)
    2021-04-21 14:28:49下载
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  • Cosine_Transform
    余弦变换-DCT。好用的小波变换方法程序。(Cosine transform-DCT. Use of wavelet transform.)
    2009-06-20 17:31:55下载
    积分:1
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  • wave
    用于进行小波变换,对原始的光谱图像数据进行预处理(Used wavelet transform, the original spectral image data preprocessing)
    2014-01-07 22:55:01下载
    积分:1
  • Wavelet-dec--rec
    在理解了离散小波变换的基本原理和算法的基础上,通过设计VC程序对简单的一维信 号在加上了高斯白噪声之后进行Daubechies小波、Morlet小波和Haar小波变换,从而得到小波分解系数;再通过改变分解得到的各层高频系数进行信号的小波重构达到消噪的目的。在这一程序实现的过程中能直观地理解信号小波分解重构的过程和在信号消噪中的重要作用,以及在对各层高频系数进行权重处理时系数的选取对信号消噪效果的影响。(In understanding the basis of discrete wavelet transform basic principles and algorithms, through the design VC program Daubechies wavelet, Morlet wavelet and Haar wavelet transform after a simple one-dimensional signal plus a Gaussian white noise, resulting wavelet coefficients wavelet reconstruction signal again by changing the layers to achieve high-frequency coefficients decomposed noise cancellation purposes. Can intuitively understand wavelet decomposition and reconstruction process and an important role in signal de-noising in the process of implementation of this program, and in the high-frequency coefficients when the weight of the layers selected for signal processing coefficients denoising affected.)
    2014-07-10 18:16:49下载
    积分:1
  • waveletcompress
    自己写的小波图像压缩,包括普通压缩和序列图像压缩(himself wrote of wavelet image compression, including the compression and ordinary sequence Image Compression)
    2006-10-09 21:46:16下载
    积分:1
  • nlayer
    实现小波包的n层分解与重构,以及简单的输入输出方式(Implementation of wavelet packet decomposition and reconstruction of N layer)
    2012-04-16 14:10:45下载
    积分:1
  • detect_R_Wavelet
    在matlab环境下,实现ECG信号R波的检测,使用的方法是小波变换。(Matlab environment, the realization of the R wave of the ECG signal detection, the methods used wavelet transform.)
    2021-04-25 09:48:46下载
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  • cyclostationary_toolbox
    循环平稳信号是一类特殊的非平稳信号,其统计特征具有随时间呈周期变化的特点。旋转机械由于周期运行方式其振动信号具有循环平稳特性,因此利用循环平稳分析方法能够提取出在平稳假设下所不能得到的隐藏故障特征信息,为有效地分离和识别旋转机械早期微弱故障特征提供可能。(The cyclostationary signal is a special type of non-stationary signal whose statistical characteristics have a periodic variation with time. Due to the cyclical operation of the rotating machinery, the vibration signal has the characteristics of cyclostationary stability. Therefore, the cyclostationary analysis method can extract the hidden fault feature information that can not be obtained under the stationary assumption, which provides the possibility to effectively separate and identify the early weak fault features of the rotating machinery.)
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    积分:1
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