Title: QRD-based unconstrained optimal filtering for acoustic noise reduction
Authors: Rombouts, Geert ×
Moonen, Marc #
Issue Date: Sep-2003
Publisher: Elsevier science bv
Series Title: Signal processing vol:83 issue:9 pages:1889-1904
Abstract: We describe a new adaptive filtering algorithm based upon QR-decomposition for optimal multichannel filtering with an "unknown" desired signal, as well as its application to multi-channel acoustic noise reduction. A recursively calculated adaptive filter then optimally estimates the speech component in a noisy signal. The complexity of this algorithm is about 7 times lower than that of existing related algorithms, which are mainly based upon GSVD-decompositions, while performance is kept at the same level. Finally, it is shown how a parameter can be introduced which can be tuned to tradeoff noise reduction for signal distortion. (C) 2003 Elsevier B.V. All rights reserved.
ISSN: 0165-1684
Publication status: published
KU Leuven publication type: IT
Appears in Collections:ESAT - STADIUS, Stadius Centre for Dynamical Systems, Signal Processing and Data Analytics
Faculty of Engineering Science - miscellaneous
Electrical Engineering - miscellaneous
× corresponding author
# (joint) last author

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