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clear;close all;
Nx=20;Nh=10;m=5; %É趨 Nx£¬NhºÍÎ»ÒÆÖµm
n=0:Nx-1;
x1=(0.9).^n;%²úÉúx1(n)
x2=zeros(1,Nx+m);
for k=m+1:m+Nx
    x2(k)=x1(k-m);
end
nh=0:Nh-1;h1=ones(1,Nh);%²úÉúh1(n)
h2=h1;
y1=conv(x1,h1);%¼ÆËãy1(n)=x1(n)*h1(n)
y2=conv(x2,h2);%¼ÆËãy2(n)=x2(n)*h2(n)
subplot(3,2,1);stem(n,x1,'.');
xlabel('n');ylabel('x1(n)');
axis([0,Nx+Nh-1,0,1]);
subplot(3,2,3);stem(nh,h1,'.');
xlabel('n');ylabel('h1(n)');
axis([0,Nh+Nx-1,0,1]);
subplot(3,2,5);stem(n,y1,'.');
xlabel('n');ylabel('y1(n)');
axis([0,Nx+Nh-1,0,6]);
subplot(3,2,2);stem(n,x2,'.');
xlabel('n');ylabel('x2(n)');
axis([0,34,0,1]);
subplot(3,2,4);stem(nh,h2,'.');
xlabel('nh');ylabel('h2(n)');
axis([0,34,0,1]);
subplot(3,2,6);stem(n,y2,'.');
xlabel('n');ylabel('y2(n)');
axis([0,34,0,6]);
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ľ³æ (ÕýʽдÊÖ)

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2Â¥: Originally posted by weigo1987 at 2012-10-31 08:54:16
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4Â¥2012-10-31 22:30:54
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weigo1987

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2Â¥2012-10-31 08:54:16
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