中文说明：
时移相位差校正法，通过时移，进行前后两次FFT分析，利用离散频谱对应峰值谱线的相位差以求出频率和相位校正量。
English Description：
Time shift phase difference correction method, through time shift, two FFT analysis, using the phase difference of discrete spectrum corresponding to the peak spectrum line to get the frequency and phase correction