The structure of nonlinear noise cancellation (NNC) and the theory of noise canceling are described.Fuzzy rules are obtained from the input-output data pairs.

• 该方法由输入-输出数据对直接提取模糊规则,模糊规则的后件参数采用递推最小二乘法一次计算得出,然后从测量信号中消去噪声得到有用的信号。