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cal_frefeature

于 2021-04-12 发布
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说明:  对信号进行频域特征提取,先通过傅里叶变换得到信号频谱,再计算频谱特征,包括重心频率,均方频率和频率方差(Firstly, the frequency spectrum of the signal is obtained by Fourier transform, and then the spectrum characteristics, including center of gravity frequency, mean square frequency and frequency variance, are calculated.)

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cal_frefeature.m, 2545 , 2020-07-20

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