自适应数字带阻滤波器的设计及应用

Design of Adaptive Digital Band-stop Filter and its Application

本文采用自适应跟踪数字带阻滤波器自动跟踪被测信号中干扰信号的频率,并利用该频率设计相应的数字带阻滤波器去除被测信号中的干扰信号。试验表明,该方法具有设计简单、应用方便、实时性强等特点。

An adaptive digital band-stop filter is designed to e-liminate the disturbance component with some frequency in the measuring signal. The adaptive least square method is adopted to get the frequency of the disturbance component. It is shown that the adaptive digital band -stop filter has the advantage of stable performance, simple adjustment, easy modification.