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傅里叶分解方法

于 2023-01-04 发布 文件大小:5.08 kB
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傅里叶分解方法(FDM)基于傅里叶变换,可以将多分量信号按频率从低频到高频(或者从高频到低频)分解出多个自分量,与EMD(或者EEMD)分解方法相比,FDM理论基础完整,避免了模态混叠效应,用于降噪效果好。此代码中Fs是采样品频率,N是信号采样点数。Xt是输入信号,其中加载的数据应为.mat格式。使用时需新建.m文件,加载数据之后调用FDM_Low2High_High2LowS.m中的函数。

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