The generalized frequency-domain adaptive filtering algorithm as an approximation of the block recursive least-squares algorithm

Journal article
(Original article)


Publication Details

Author(s): Schneider M, Kellermann W
Journal: Eurasip Journal on Advances in Signal Processing
Publication year: 2016
Volume: 2016
Journal issue: 6
Pages range: 1-15
ISSN: 1687-6180


Abstract


Acoustic echo cancellation (AEC) is a well-known application of adaptive filters in communication acoustics. To implement AEC for multichannel reproduction systems, powerful adaptation algorithms like the generalized frequency-domain adaptive filtering (GFDAF) algorithm are required for satisfactory convergence behavior. In this paper, the GFDAF algorithm is rigorously derived as an approximation of the block recursive least-squares (RLS) algorithm. Thereby, the original formulation of the GFDAF algorithm is generalized while avoiding an error that has been in the original derivation. The presented algorithm formulation is applied to pruned transform-domain loudspeaker-enclosure-microphone models in a mathematically consistent manner. Such pruned models have recently been proposed to cope with the tremendous computational demands of massive multichannel AEC. Beyond its generalization, a regularization of the GFDAF is shown to have a close relation to the well-known block least-mean-squares algorithm.



FAU Authors / FAU Editors

Kellermann, Walter Prof. Dr.-Ing.
Professur für Nachrichtentechnik
Schneider, Martin
Lehrstuhl für Multimediakommunikation und Signalverarbeitung


How to cite

APA:
Schneider, M., & Kellermann, W. (2016). The generalized frequency-domain adaptive filtering algorithm as an approximation of the block recursive least-squares algorithm. Eurasip Journal on Advances in Signal Processing, 2016(6), 1-15. https://dx.doi.org/10.1186/s13634-015-0302-2

MLA:
Schneider, Martin, and Walter Kellermann. "The generalized frequency-domain adaptive filtering algorithm as an approximation of the block recursive least-squares algorithm." Eurasip Journal on Advances in Signal Processing 2016.6 (2016): 1-15.

BibTeX: 

Last updated on 2018-19-04 at 03:35