A stable fast affine projection adaptation algorithm suitable for low-cost processors

Authors:
Heping Ding
Affiliations:
Network Edge Technol., Nortel Networks, Ottawa, Ont., Canada
Venue:
ICASSP '00 Proceedings of the Acoustics, Speech, and Signal Processing, 2000. on IEEE International Conference - Volume 01
Year:
2000

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Abstract

The fast affine projection (FAP) adaptation algorithm possesses a superior convergence property, but most of its implementations so far suffer from instability resulting from error propagation and accumulation in a matrix inversion process. A stable yet simple FAP algorithm is proposed, where the matrix inversion is performed based on an optimization scheme in the field of non-linear programming. Proven to be stable and immune to numerical errors, the new algorithm is suitable for a wide range of voice applications.