I would like to write blogs which contains programs in C
language or of MATLAB code.The reason is simple,I have a subject called
Digital signal processing laboratory.It contains totally 24 programs and
in exam we need to write just two,so some programs which I like out of
the remaining ones I would like to write them in my blogs.
C program :#include<stdio.h>
int i,j,m,n,x[30],h[30],y[30],a[30],x2[30],temp[30];
main()
{
printf("enter the length of the first sequence");
scanf("%d",&m);
printf("enter the length of the second sequence");
scanf("%d",&n);
printf("enter the first sequence");
for(i=0;i<m;i++)
scanf("%d",&x[i]);
printf("enter the second sequence");
for(j=0;j<n;j++)
scanf("%d",&h[j]);
if(m-n!=0)
{
if(m>n)
{
for(i=n;i<m;i++)
h[i]=0;
m=n;
}
for(i=m;i<n;i++)
x[i]=0;
m=n;
}
y[0]=0;
a[0]=h[0];
for(j=1;j<n;j++)
a[j]=h[n-j];
for(i=0;i<n;i++)
y[0]+=x[i]*a[i];
for(k=1;k<n;k++)
{
y[k]=0;
for(j=1;j<n;j++)
x2[j]=a[j-1];
x2[0]=a[1-j];
for(i=0;i<n;i++)
{
a[i]=x2[i];
y[k]+=x[i]*x2[i];
}
}
printf("circular convolution is ");
for(i=0;i<n;i++)
printf("%d\n",y[i]);
