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Adaptive filter bank reconstruction using fast multichannel RLS algorithms

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2 Author(s)
Dah-Chung Chang ; Dept. of Commun. Eng., Nat. Chiao Tung Univ., Hsinchu, Taiwan ; Wen-Rong Wu

The recursive least-squares (RLS) algorithm has been used in the adaptive synthesis filter bank for fast convergence. However, because of interpolation operations involved in the synthesis process, fast RLS algorithms cannot be applied. In this work, an approach is proposed that can formulate subband signal reconstruction as a multichannel filtering problem. This formulation allows the application of fast multichannel RLS algorithms and substantial reduction in computational complexity

Published in:

Electronics Letters  (Volume:34 ,  Issue: 12 )