自编的FFT、DTFT程序用于频谱分析，Rife是一种频谱校正方法，分别给出了以上算法的Matlab程序并且画出了图形。已调试通过。-FFT、DTFT codes writen by Matlab,for spectrum analyse.Rife is a method for spectrum correction.Figures are also given.These codes has been tested already.

可以自定义精度（最小频率分辨率）的FFT频谱细化算法：FFT-FT-Can customize the precision (the minimum frequency resolution) of the FFT spectrum thinning algorithm: FFT-FT