能量重心频谱校正法加汉宁窗，利用离散窗谱函数的能量重心是坐标原点的原理，根据功率谱重心法则求出频率校正量，进而校正相位。-The energy center of gravity the spectrum correction with hanning window using a discrete window spectral function of the energy center of gravity is the principle of the origin of coordina