On implementation and design of filter banks for subband adaptive systems

Weiss, S. and Harteneck, M. and Stewart, R.W. (1998) On implementation and design of filter banks for subband adaptive systems. In: IEE Colloquium on Digital Filters, 1998-04-20 - 1998-04-20.

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Abstract

This paper introduces a polyphase implementation and design of an oversampled K-channel generalized DFT (GDFT) filter bank, which can be employed for subband adaptive filtering, and therefore is required to have a low aliasing level in the subband signals. A polyphase structure is derived which can be factorized into a real valued polyphase network and a GDFT modulation. For the latter, an FFT realization may be used, yielding a highly efficient polyphase implementation for arbitrary integer decimation ratios N les;K. We also present an analysis underlining the efficiency of complex valued subband processing. The design of the filter bank is completely based on the prototype filter and solved using a fast converging iterative least squares method, for which we give examples. The design specifications closely correspond with performance limits of subband adaptive filtering, which are under-pinned by simulation results.

ORCID iDs

Weiss, S. ORCID logoORCID: https://orcid.org/0000-0002-3486-7206, Harteneck, M. and Stewart, R.W. ORCID logoORCID: https://orcid.org/0000-0002-7779-8597;
  • Item type:Conference or Workshop Item(Paper)
    ID code:32648
    Dates:
    Date
    Event
    20 April 1998
    Published
    Notes:©1998 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting /republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
    Keywords:adaptive filters, computational complexity, filtering theory, filter banks, implementation, design, subband adaptive system, Electrical engineering. Electronics Nuclear engineering, Electrical and Electronic Engineering
    Subjects:Technology > Electrical engineering. Electronics Nuclear engineering
    Department:Faculty of Engineering > Electronic and Electrical Engineering
    Depositing user: Pure Administrator
    Date deposited:31 Aug 2011 10:14
    Last modified:11 Aug 2021 01:46
    URI:https://strathprints.strath.ac.uk/id/eprint/32648
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