Created
April 23, 2016 09:26
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| n= -3:3; | |
| x=[2 4 -3 1 -5 4 7]; | |
| [y1,n1]= sigshift(n,x,3); | |
| y1=2*y1; | |
| [y2,n2]= sigshift(n,x,-4); | |
| y2= 3*y2; | |
| [y3,n3]= sigadd(n1,y1,n2,y2); | |
| [y3,n3]=sigadd(n3,y3,n,-x); | |
| stem(n3,y3); | |
| hold on; | |
| [x1,n1]= sigshift(n,x,-4); | |
| x1=2*x1; | |
| [x2, n2]= sigshift(n,x,-5); | |
| x2=5*x2; | |
| x3= 2*x; | |
| [a,b]=sigadd(n1,x1,n2,x2,n,x3); | |
| figure; | |
| stem(b,a); | |
| [x1,n1]=sigshift(n,x,-3); | |
| [x2,n2]=sigshift(n,x,2); | |
| [x1,n1]=sigmul(n1,x1,n2,x2); | |
| [x2,n2]=sigshift(-n,x,1); | |
| [x3,n3]=sigshift(n,x,-1); | |
| [x2,n2]=sigmult(n3,x3,n2,x2); | |
| [x1,n1]=sigadd(n1,x1,n2,x2); | |
| figure; | |
| stem(n1,x1); |
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