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Source-domain adaptive filtering for MIMO systems with application to acoustic echo cancellation

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3 Author(s)
Helwani, K. ; Deutsche Telekom Labs., Berlin Univ. of Technol., Berlin, Germany ; Buchner, H. ; Spors, S.

Combining the channels of a multiple input/multiple output (MIMO) system into suitably chosen modes by a domain transformation offers great improvements of adaptive filtering algorithms. In this paper we present an algorithm for adaptive MIMO filtering, called source-domain adaptive filtering (SDAF), with application to multichannel acoustic echo cancellation operating in an optimally adjusted transform domain without requiring a-priori knowledge about the system. Experimental results show a significant performance improvement compared to fixed transformation bases.

Published in:

Acoustics Speech and Signal Processing (ICASSP), 2010 IEEE International Conference on

Date of Conference:

14-19 March 2010

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