1.

What is the system function of the filter with impulse response hk(n)?

A. \(\frac{1}{1-W_N^{-k} z^{-1}}\)
B. \(\frac{1}{1+W_N^{-k} z^{-1}}\)
C. \(\frac{1}{1-W_N^k z^{-1}}\)
D. \(\frac{1}{1+W_N^k z^{-1}}\)
Answer» B. \(\frac{1}{1+W_N^{-k} z^{-1}}\)


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