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A multichannel affine projection algorithm with applications to multichannel acoustic echo cancellation

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3 Author(s)
Benesty, J. ; ENST, Paris, France ; Duhamel, P. ; Grenier, Y.

A straightforward generalization of the so-called affine projection algorithm (APA) to the multichannel (MC) case is easily obtained. However, due to the strong correlation between the input signals of the various channels, the resulting algorithm converges very slowly. The article describes the way to overcome this problem and derives an efficient algorithm that makes use of additional orthogonal projections.

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Signal Processing Letters, IEEE  (Volume:3 ,  Issue: 2 )