stft_up_tools-master

说明：  傅里叶变换是一种分析信号的方法，它可分析信号的成分，也可用这些成分合成信号。在分析信号时，主要应用于处理平稳信号，通过傅里叶变换可以获取一段信号总体上包含哪些频率的成分，但是对各成分出现的时刻无法得知。(The Fourier transform is a method of analyzing a signal. It can analyze the components of a signal or synthesize a signal from those components. In the analysis of signals, it is mainly applied to the processing of stationary signals. Through the Fourier transform, it is possible to obtain the components of which frequencies a segment of signals contains in general, but it is impossible to know the time when each component appears.)

stft_up_tools-master, 0 , 2018-07-16
stft_up_tools-master\DATA, 0 , 2018-07-16
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