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Compute the circular convolution of x(n){2,1,2,1}and h(n)={1,2,3,4,}by using FFT-IFFT method.

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Compute the circular convolution of x(n){2,1,2,1}and h(n)={1,2,3,4,}by using FFT-IFFT method.

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written 5.7 years ago by |

Calculate DFT of x(n)by DIT-FFT

Calculate DFT of h(n)by DIT-FFT

We know that convolution in time domain is equivalent to multiplication in frequency domain

Y(k)=X(k).H(k)

={60 ,0,-4,0}

Now, calculate IDFT of Y(k)by IDIT-FFT

y(n)={14,16,14,16}

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