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A Mathematical Review of Polyphase Filterbank Implementations for Radio Astronomy

Published online by Cambridge University Press:  02 January 2013

Christopher Harris  and
Karen Haines
Christopher Harris*
Affiliation:
ICRAR, The University of Western Australia, M468, 35 Stirling Hwy, Crawley 6009, Australia
Karen Haines
Affiliation:
WASP, The University of Western Australia, M024, 35 Stirling Hwy, Crawley 6009, Australia
*
CCorresponding author. Email: christopher.harris@icrar.org
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Abstract

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The technique of polyphase filterbanks is commonly used for signal processing in radio astronomy. The rapid and ongoing evolution of parallel hardware architectures requires optimised implementations of such techniques to be redeveloped. However, much of the published research regarding polyphase filterbanks refers the reader to signal processing books with a more general scope. Furthermore, these references tend to focus on the design of filters, rather than their implementation. For this reason, this work presents a mathematical background for the implementation of a polyphase filterbank specific to radio astronomy. It also addresses the advantages and disadvantages of polyphase filterbanks in comparison with more commonly used techniques.

Keywords

methods: data analysismethods: numerical
Type
Research Article
Information
Publications of the Astronomical Society of Australia , Volume 28 , Issue 4 , 2011 , pp. 317 - 322
Copyright
Copyright © Astronomical Society of Australia 2011

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