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Content Provider | IEEE Xplore Digital Library |
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Author | Chau, E. Sheikhzadeh, H. Brennan, R.L. |
Copyright Year | 2004 |
Description | Author affiliation: Dspfactory Ltd., Waterloo, Ont., Canada (Chau, E.; Sheikhzadeh, H.; Brennan, R.L.) |
Abstract | The affine projection algorithm (APA) has been shown to improve the performance of oversampled subband adaptive filters (OS-SAFs) compared to classical normalized least mean square (NLMS) algorithms. Because of the complexity of APA, however, only low-order APAs are practical for real-time implementation. Thus, we propose a reduced-complexity version of the Gauss-Seidel fast APA (GSFAPA) for adapting the subband filters in OS-SAF systems. We propose modifying the GSFAPA with a complexity reduction method based on partial filter update, and also with a low-cost method for combined regularization and step size control. We show the advantage of the new algorithm - termed low-cost Gauss-Seidel fast affine projection - compared to the APA in a subband echo canceller application. |
File Size | 323561 |
File Format | |
ISBN | 0780384849 |
ISSN | 15206149 |
DOI | 10.1109/ICASSP.2004.1327059 |
Language | English |
Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Publisher Date | 2004-05-17 |
Publisher Place | Canada |
Access Restriction | Subscribed |
Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Subject Keyword | Projection algorithms Adaptive filters Echo cancellers Gaussian processes Convergence Filter bank Size control Least squares methods Signal processing Electronic mail |
Content Type | Text |
Resource Type | Article |
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