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CS小波基稀疏矩阵代码

于 2022-03-24 发布 文件大小:1.21 kB
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代码说明:

     离散小波变换(DiscreteWavelet Transform, DWT)和离散傅里叶变换(Discrete FourierTransform, DFT)不一样,在Matlab中确实有dwt函数,但它与一般书中讲的DWT不一样,dwt是基于Mallat(法国学者,音译为马拉特)算法实现的,针对的离散时间信号,而DWT指的是将连续小波变换(Continuous WaveletTransform, CWT)中的尺度参数a和时移参数b离散化,即将下式中的a和b离散化,但t仍然是连续的。

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