matlab fir�˲�

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#43

From: puppet0411
Date: Mon, 25 Sep 2006 02:32

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t = 0:0.01:1000;
A1 = 60; A2 = 60;
SPP1 = 200; SPP2 = 7;
f1 = 2*pi/SPP1; f2 = 2*pi/SPP2;
y1 = A1*sin(2*pi*f1*t); y2 = A2*sin(2*pi*f2*t);
y = y1+y2;
figure;
subplot(311);plot(t, y1);
subplot(312);plot(t,y2);
subplot(313);plot(y);

b = fir1(50,0.25);
figure;
[h,w] = freqz(b,1,512,2);
plot(w,abs(h));

yout = filter(b,1,y);

figure;
plot(yout); grid;

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From: puppet0411@bbs.neu.edu.cn (puppet0411)
Newsgroups: cn.bbs.sci.electronics
Subject: matlab fir�˲�
Date: 25 Sep 2006 02:32:10 GMT
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