资源简介
设计cic 滤波器的matlab程序,可以实现对信号的抽取
代码片段和文件信息
%对一个采样频率为45.5MHz的信号进行14倍的抽取滤波
%同时进行补偿滤波器的设计,并给出CIC滤波器、补偿滤波器和级联后的频谱图
% Design a minimum-order CIC compensator that compensates...
% for the droop in the passband for the CIC decimator.
Fs = 45.5e6; % Input sampling frequency
Fpass = 0.5e6; % Frequency band of interest
D = 14; % Decimation factor of CIC
d1 = fdesign.decimator(D‘CIC‘1Fpass65Fs); %design a cic filter
Hcic = design(d1);
Hd(1) = cascade(dfilt.scalar(1/gain(H
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