Necessary and sufficient conditions for perfect reconstruction (PR) in a modulated filter bank are derived. It is shown that, for a bank of M filters of length L, PR can be obtained when L = 2KM, for any positive integer K, whereas previous results guaranteed PR only for K = 1.

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In  Electronics Letters

Publisher  Institution of Electrical Engineers
Copyright © 1990 by The Institution of Electrical Engineers(IEE).

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