Perfect reconstruction FIR filter banks: some properties and factorizations

Perfect reconstruction finite impulse-response (FIR) filter banks are analyzed both in the z-transform and time domains, showing the alternatives between designs in the two domains. Various classes of perfect reconstruction schemes are indicated, and relations between previously known systems are given. Windowed modulated filter banks with low computational complexity and perfect reconstruction are shown. New factorizations of polyphase filter matrices leading in particular to linear-phase filters, are given. The computational complexity and the architecture of the new structures are indicated


Published in:
IEEE Transactions on Acoustics, Speech and Signal Processing, 37, 7, 1057-1071
Year:
1989
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 Record created 2005-04-18, last modified 2018-03-17

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