Adaptive algorithms for sparse echo cancellation
Signal Processing
Comparison of convex combination and affine combination of adaptive filters
ICASSP '09 Proceedings of the 2009 IEEE International Conference on Acoustics, Speech and Signal Processing
Adaptive combination of proportionate filters for sparse echo cancellation
IEEE Transactions on Audio, Speech, and Language Processing
Improving the Tracking Capability of Adaptive Filters via Convex Combination
IEEE Transactions on Signal Processing - Part II
Universal linear prediction by model order weighting
IEEE Transactions on Signal Processing
Mean-square performance of a convex combination of two adaptive filters
IEEE Transactions on Signal Processing
An Affine Combination of Two LMS Adaptive Filters—Transient Mean-Square Analysis
IEEE Transactions on Signal Processing
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Combination schemes are gaining attention as an interesting way to improve adaptive filter performance. In this paper, we present some recently proposed practical schemes for convex and affine filter combination, explaining how they can be useful to overcome some of the most important limitations of conventional adaptive filters. We will also illustrate the benefits of this approach with several experiments. First, we explain how the combination can reduce the mean square error (MSE) of adaptive filters by biasing their outputs. We present also some recent results in real scenarios for acoustic echo cancellation.