Problem

The analysis filters in a three-channel QMF hank have the transfer functions (a...

The analysis filters in a three-channel QMF hank have the transfer functions

(a) Determine the polyphase matrix and express the analysis filters in the form (11.12.11).

(b) Determine the synthesis filters that result in perfect reconstruction.

(c) Sketch the three-channel QMF bank that employs polyphase filters in the analysis and synthesis sections.

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Solutions For Problems in Chapter 11