1.

According to Goertzel Algorithm, if the computation of DFT is expressed as a linear filtering operation, then which of the following is true?

A. y<sub>k</sub>(n)= ( sum_{m=0}^N x(m)W_N^{-k(n-m)} )
B. y<sub>k</sub>(n)= ( sum_{m=0}^{N+1} x(m)W_N^{-k(n-m)} )
C. y<sub>k</sub>(n)= ( sum_{m=0}^{N-1} x(m)W_N^{-k(n+m)} )
D. y<sub>k</sub>(n)= ( sum_{m=0}^{N-1} x(m)W_N^{-k(n-m)} )
Answer» E.


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