Matlab求周期信号的傅里叶级数；求连续时间信号的傅里叶变换-Using Matlab for the periodic signal Fourier series；Continuous time Fourier transform signal

matlab对持续音和时变音的频谱分析，快速傅里叶变换-matlab spectrum when continuous tone accented analysis, fast Fourier transform

应用离散傅里叶变换DFT，通过MATLAB实现对连续信号频谱分析，以满足理论分析和工程实际的需要-Application of discrete Fourier transform (DFT, by MATLAB continuous signal spectrum analysis, so as to meet the needs of the theoretical analysis and engineering practice