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Rational canonical form of polyphase matrices with applications to designing paraunitary filter banks

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3 Author(s)
Vouras, P. ; Naval Res. Lab., Johns Hopkins Univ., Baltimore, MD ; Trac Tran ; Ching, M.

In this paper we consider the rational canonical form of arbitrary polyphase matrices and use it to derive a simple implementation of paraunitary filter banks (PUFBs) based on a cascade of elementary building blocks. Furthermore, this decomposition is shown to be easily extendable to include a large class of perfect reconstruction filter banks (PRFBs) and can be especially useful for deriving the initial condition of PUFB design algorithms.

Published in:

Acoustics, Speech and Signal Processing, 2009. ICASSP 2009. IEEE International Conference on

Date of Conference:

19-24 April 2009