AFA

代码说明：

  自适应滤波器的特点是自动调节自身的冲激响应,达到最优滤波,此算法适用于平稳和非平稳随机信号,并且不要求知道信号和噪声的统计特性。(Adaptive filter is characterized by automatic adjustment of its own impulse response, the optimal filtering, this algorithm applied to a smooth and non-stationary random signal, and does not demand to know the signal and noise is investigated.)