1.

What is the magnitude squared response of the normalized low pass Butterworth filter?

A. 1/(1+Ω<sup>-2N</sup>)
B. 1+Ω<sup>-2N</sup>
C. 1+Ω<sup>2N</sup>
D. 1/(1+Ω^<sup>2N</sup>)
Answer» E.


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