matlab实现excel格式的数据的快速傅立叶变化程序-matlab excel format data fast Fourier transform program

从Excel表中读取数据，然后分析其频谱、相谱和总谐波畸变率，并画出图（plot）。-Read data from an Excel table, and then analyze its spectrum, phase spectrum and total harmonic distortion rate, and draw the diagram (plot).

MATLAB 小程序，进行FFT计算，将原始数据放入EXCEL，运行M文件，进行频谱分析-MATLAB applet, the FFT calculation, the raw data into EXCEL, run M files, spectral analysis