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

作　　者：张亚利[1] 田社平[1] 

机构地区：[1]上海市上海交通大学信息检测技术与仪器系,200030

出　　处：《微计算机信息》2004年第1期44-45,共2页Control & Automation

摘　　要：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.

关 键 词：数字带阻滤波器 自适应 干扰信号 频率设计 信号处理 中心频率 最小二乘法 

分 类 号：TN713.7[电子电信—电路与系统]