(New page: function y = myconv(x1,x2) x3=fliplr(x2); len1=length(x1); len2=length(x2); len3=len1+len2-1; len4=len2-1; y=zeros(1,len3); for q=1:1:len3 q1=q+len4; n2=zeros(1,len3); n2([q...) |
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x3=fliplr(x2); | x3=fliplr(x2); | ||
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len1=length(x1); | len1=length(x1); | ||
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len2=length(x2); | len2=length(x2); | ||
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len3=len1+len2-1; | len3=len1+len2-1; | ||
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len4=len2-1; | len4=len2-1; | ||
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y=zeros(1,len3); | y=zeros(1,len3); | ||
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for q=1:1:len3 | for q=1:1:len3 | ||
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q1=q+len4; | q1=q+len4; | ||
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n2=zeros(1,len3); | n2=zeros(1,len3); | ||
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n2([q:q1])=x3; | n2([q:q1])=x3; | ||
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len5=length(n2); | len5=length(n2); | ||
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n1=zeros(1,len5); | n1=zeros(1,len5); | ||
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n1([len2:len3])=x1; | n1([len2:len3])=x1; | ||
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c1=n1.*n2; | c1=n1.*n2; | ||
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c2=0; | c2=0; | ||
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for i=1:1:len3 | for i=1:1:len3 | ||
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c2=c2+c1([i]); | c2=c2+c1([i]); | ||
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end | end | ||
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sum=c2 | sum=c2 | ||
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y([q])=sum | y([q])=sum | ||
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end | end | ||
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t=length(y); | t=length(y); | ||
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t2=(t-1)/2; | t2=(t-1)/2; | ||
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v=-t2:1:t2; | v=-t2:1:t2; | ||
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subplot(3,1,1),stem(x1,'g*'); | subplot(3,1,1),stem(x1,'g*'); | ||
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subplot(3,1,2),stem(x2,'b*'); | subplot(3,1,2),stem(x2,'b*'); | ||
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subplot(3,1,3),stem(v,y,'r*'); | subplot(3,1,3),stem(v,y,'r*'); | ||
Latest revision as of 11:09, 1 July 2009
function y = myconv(x1,x2)
x3=fliplr(x2);
len1=length(x1);
len2=length(x2);
len3=len1+len2-1;
len4=len2-1;
y=zeros(1,len3);
for q=1:1:len3
q1=q+len4;
n2=zeros(1,len3);
n2([q:q1])=x3;
len5=length(n2);
n1=zeros(1,len5);
n1([len2:len3])=x1;
c1=n1.*n2;
c2=0;
for i=1:1:len3
c2=c2+c1([i]);
end
sum=c2
y([q])=sum
end
t=length(y);
t2=(t-1)/2;
v=-t2:1:t2;
subplot(3,1,1),stem(x1,'g*');
subplot(3,1,2),stem(x2,'b*');
subplot(3,1,3),stem(v,y,'r*');
