myfft是一个自编matlab函数，将输入的采样频率个采样点数建立一个数据库后，取出表中的数据进行fft分析，绘制出时频波形进行比较分析-myfft self Matlab is a function of the input sampling frequency of 000 sampling points after the establishment of a database and extract table data fft analysis, time-frequency mapping out a comparative analysis of waveforms
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