基于多抽样率结构的窄带FIR滤波器设计与实现
The design and implementation of narrow band FIR filter based on multirate structure
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摘要: 在高采样率条件下,采用常规的设计方法来实现窄带FIR滤波器是非常困难的.本文提出了一种利用多抽样率结构来实现窄带FIR滤波器的方法,并利用该方法设计了一个用于电参数测量系统的极窄带FIR滤波器.通过计算机仿真,详细阐述了其实现方法.Abstract: Under the condition of high sampling rate,the design of narrow band FIR digital filters by usual ways is impossible.Based on multirate digital signal processing,this paper developed a new method to design the narrow band FIR filters.All of these are confirmed by the computer simulation,and its steps are presented.