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对自适应噪声抵消系统中两路噪声相关性较弱的情况，采用相于函数作为频域增益因子，对自适应噪声抵消作进一步处理（或后处理），以改善语声增强效果．提出一种实时迭代算法取代现有的基于短时傅氏变换的算法，新算法可简化计算且便于与自适应系统一起实时实现．在计算机模拟实验中，后处理算法的有效性得到了验证．
In the case of weak correlation between the two noises in the adaptive noise cancellation system, the phase function is used as the frequency domain gain factor to further process (or post-process) the adaptive noise cancellation to improve the speech enhancement effect. A real-time iterative algorithm is proposed to replace the existing algorithm based on short-time Fourier transform. The new algorithm can simplify the calculation and facilitate the real-time implementation with the adaptive system. In computer simulation experiments, the effectiveness of the post-processing algorithm has been verified.