dsp (digital signal processing) fir filter design

소개글

FIIR 필터입니다.

목차

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본문내용

clear all
fs=8000;
fL=1000;
fH=2000;
wL=2*pi*fL/fs;
wH=2*pi*fH/fs;
n0=0;
hL0=wL/pi;
hH0=(pi-wH)/pi;
hB0=(wH-wL)/pi;

%M=5,15일때
n= (1:1:15);

hL = sin(wL*n)./(n*pi);
hH = -sin(wH*n)./(n*pi);
hB = (sin(wH*n)./(n*pi))-(sin(wL*n)./(n*pi));

bL = flip(hL);
bH = flip(hH);
bB = flip(hB);

song=wavread('ssong.wav');
yL = filter([bL hL0 hL],[1],song);
yH = filter([bH hH0 hH],[1],song);
yB = filter([bB hB0 hB],[1],song);

참고 자료

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