一种基于模糊逻辑的数字信号滤波方法

A Method of Filtering Digital Signal Noise Based on Fuzzy Logic

提出了一种用模糊逻辑推理对数字信号进行滤波的方法。根据带有噪声信号的特性,通过比较该信号与其前、后几个信号的差异,再运用模糊逻辑推理规则,就可以判断出该信号是否带有噪声,并对其进行处理。通过实验说明:该方法可以滤除信号中带有的脉冲噪声和同分布噪声,方法简单,结果满意。

A new filtering noise method based on fuzzy logic inference is developed. By the character of the noise and comparing the signal with the signals before and after it, the noise can be detected and filtered by the rules of the fuzzy logic inference. The experiments show that this method can filter the impulsive noise and uni- formly distributed noise excellently. Moreover, this method is simple and the effect is satisfied.