中文说明：
以输入和输出信号的统计特性的估计为依据，采取特定算法自动地调整滤波器系数，使其达到最佳滤波特性的一种算法或装置。自适应滤波器可自适应滤波器以是连续域的或是离散域的。离散域自适应滤波器由一组抽头延迟线、可变加权系数和自动调整系数的机构组成。
English Description：
Based on the estimation of the statistical characteristics of input and output signals, an algorithm or device that adopts a specific algorithm to automatically adjust the filter coefficients to achieve the best filtering characteristics. Adaptive filter can be adaptive filter in continuous domain or discrete domain. The discrete domain adaptive filter is composed of a set of tapped delay lines, variable weighting coefficients and a mechanism for automatically adjusting coefficients