在FFT后信号的频率往往与谱线不相重合，而在两条谱线之间。为了要求得信号的频率、幅值和初始相角，必须要使用修*来完成。这里给出一种修*。-After the signal in the FFT frequency spectrum often do not coincide, and in between the two lines. Request for a signal frequency, amplitude and ini

由于做FFT的能量泄露，频谱会出现误差，本程序用于FFT频谱的幅值和相位校正-As the leakage energy to do the FFT, the spectrum will be errors, the procedure used for the FFT spectrum of the amplitude and phase correction