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matlab实现小波变换

于 2022-11-13 发布 文件大小:1.91 kB
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小波变换是一种新的变换分析方法,它继承和发展了短时傅立叶变换局部化的思想,同时又克服了窗口大小不随频率变化等缺点,能够提供一个随频率改变的时间一频率窗口,是进行信号时频分析和处理的理想工具。它的主要特点是通过变换能够充分突出问题某些方面的特征,因此,小波变换在许多领域都得到了成功的应用,特别是小波变换的离散数字算法已被广泛用于许多问题的变换研究中。从此,小波变换越来越引进人们的重视,其应用领域来越来越广泛。

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