Problem

A lowpass filter is described by the difference equation (a) By performing a f...

A lowpass filter is described by the difference equation

(a) By performing a frequency translation of π/2, transform the filter into a bandpass filter.

(b) What is the impulse response of the bandpass filter?

(c) What is the major problem with the frequency translation method for transform-ing a prototype lowpass filter into a bandpass filter?

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Solutions For Problems in Chapter 4

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