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离散小波变换

于 2017-06-27 发布 文件大小:153KB
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下载积分: 1 下载次数: 14

代码说明:

  我实现的离散小波变换,可直接运行,采用三级变换(Discrete wavelet thransform)

文件列表:

离散小波变换\Fig7.01.jpg
离散小波变换\imdwt1.m
离散小波变换\imidwt2.m
离散小波变换\selfdwt.m
离散小波变换\selfidwt.m
离散小波变换

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  • HarmoniousWavelet
    谐波小波分析的源代码,应该属于信号处理类的,绝对值得收藏,送给朋友们!(Harmonic wavelet analysis source code, it should be under the category of signal processing, and definitely worth collection, a gift my friends!)
    2008-06-24 18:41:18下载
    积分:1
  • simpsal
    提取图像显著图,小波融合 非常详细,有用(Extract image saliency map, wavelet fusion is very detailed, useful for)
    2011-11-02 12:32:07下载
    积分:1
  • wavepage
    小波包分析提取振动信号中的分解,系数重构特征频率,以及能量谱分析计算(Wavelet packet analysis to extract the vibration signal decomposition coefficient reconstruction of the characteristic frequency, and calculate the energy spectrum analysis)
    2011-11-01 16:08:34下载
    积分:1
  • 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
  • xiaobobianhuan
    小波变换光谱数据预处理阈值平滑处理用于光谱数据(xiaobobianhuan yuchuli )
    2009-06-24 09:41:13下载
    积分:1
  • 61
    说明:  提出了一种结合SVD的小波变换方法,对其在外弹道测量数据中的野值剔除进行了研究。对观测数据进行小波分解,将小波分解后的近似分量和细节分量组合实现相空间重构,作为SVD方法的输入观测矩阵,根据奇异 熵增量准则,对奇异值进行筛选,根据SVD逆变换重构原信号。这一方法克服了Hankel矩阵相空间构建方法数据 端点失真问题。以小波分解后分量重构的相空间可以满足正交性,进一步提高了SVD进行数据降噪和野值检测的精度。仿真数据和试验数据处理结果证明了这一方法的有效性。(Proposed a method of combining the SVD wavelet transform its outer ballistic measurement data in excluding outliers were studied. Observational data on wavelet decomposition, wavelet decomposition of the approximate combined component and detail component to achieve the phase space reconstruction, as the input observation matrix SVD method, based on singular entropy increment standards, singular value filter, according to the inverse transform heavy SVD structure of the original signal. This approach overcomes the Hankel matrix phase space construction method data endpoint distortion. Wavelet decomposition component of reconstruction phase space satisfy orthogonality, to further improve the SVD for data noise reduction and outlier detection accuracy. Simulation data and experimental data processing results prove the effectiveness of this approach.)
    2013-06-02 11:10:21下载
    积分:1
  • wavelet_lab2
    对图像做二维离散小波变换,分解级数为3级,并重构图像,不直接调用Matlab的dwt和idwt函数。(pair of 2-dimensional images DWT, decomposition of the three series, and Image Reconstruction, not directly call Matlab dwt and idwt function.)
    2006-12-03 11:39:43下载
    积分:1
  • ESPRIT_2D
    这篇代码介绍了一种阵列信号处理的一种算法,具有很大的作用。(This code describes an algorithm for an array signal processing, has a big role.)
    2021-04-23 09:38:48下载
    积分:1
  • GSM_Denoise
    实现了高斯混合尺度模型(GSM)算法,可被嵌入到各种去噪框架中(如各种小波变换等)使用。(Gaussian mixture scale model (GSM) algorithm, can be embedded into a variety of denoising framework (such as a variety of wavelet transform, etc.) use.)
    2021-04-07 09:19:01下载
    积分:1
  • Imattlabcoodem
    图象增强小波变换将一幅图象分解为大小、位置与方向都不同的分量。在做逆变换之前能改变小波变换域中某些系数的大小,,这样就能够洋选择的放大所感兴趣的分量而减小不需要的分量。给定一个图象信号,用二维小波分析析对图象进行增强处理。 (Image enhancement wavelet transform decomposition size, location and direction of the different components of an image. Wavelet transform domain, some the size of the coefficient can change before doing the inverse transformation, so can the component of interest to the amplification of the ocean choose to reduce the unwanted weight. Given an image signal, the analysis of two-dimensional wavelet analysis of image enhancement processing.)
    2012-07-27 21:23:36下载
    积分:1
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