The University of Southampton
University of Southampton Institutional Repository

Efficient Subband Adaptive Filtering with Oversampled GDFT Filter Banks

Weiss, S, Lampe, L and Stewart, R W (1997) Efficient Subband Adaptive Filtering with Oversampled GDFT Filter Banks At Colloquium on Adaptive Signal Processing for Mobile Communication Systems. , 4/1-4/9.

Record type: Conference or Workshop Item (Other)


This paper addresses the numerical efficiency of adaptive filtering implemented in subbands. Our approach first focuses on oversampled GDFT filter banks and their potential benefits over other possible subband decompositions. Although the subbands filters presented use complex arithmetic, the discussed method allows factorisation into a real valued prototype polyphase network, followed by a complex GDFT modulation, which can be mostly implemented via an FFT. Secondly we discuss the advantages and potential savings that can be gained by processing complex subband signals, with particular reference to adaptive system identification problems, for which we give demonstrations of the potential benefits of our GDFT approach compared to adaptive identification in both fullband and critically sampled DCT-IV based pseudo-QMF subbands.

PDF weiss97c.pdf - Other
Download (262kB)
Postscript - Other
Download (262kB)

More information

Published date: October 1997
Additional Information: Organisation: IEE Address: London, Uk
Venue - Dates: Colloquium on Adaptive Signal Processing for Mobile Communication Systems, 1997-10-01
Organisations: Electronics & Computer Science


Local EPrints ID: 251911
PURE UUID: e38562df-9732-461e-b14f-b79952edd6b1

Catalogue record

Date deposited: 08 Nov 2000
Last modified: 18 Jul 2017 10:08

Export record


Author: S Weiss
Author: L Lampe
Author: R W Stewart

University divisions

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton:

ePrints Soton supports OAI 2.0 with a base URL of

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.