文件名称:wave-time-frequency
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普通信号都是非线性信号，一般的傅里叶变换无法有效分析，这是利用小波变换方法进行的有效时频分析方法-Common signals are non-linear signal, generally can not be effectively Fourier transform analysis, which is carried out using wavelet transform time-frequency analysis method for the effective
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wave time frequency
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