中文说明：
改变窗长的相位差离散频谱校正源程序。改变窗长的相位差校正程序，可选择矩形窗和汉宁窗。已调试通过。
English Description：
Change the window length of the phase difference discrete spectrum correction source. Rectangular window and Hanning window can be selected as phase difference correction program to change window length. Debugging passed