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An Efficient Implementation of the Delay Compensation for Sub-Band Filtered-x Least-Mean-Square Algorithm

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3 Author(s)
Longji Wang ; Dept. of Electr. & Comput. Eng., Concordia Univ., Montreal, Que. ; Swamy, M.N.S. ; Ahmad, M.O.

The sub-band filtered-x least-mean-square algorithm used in the active control of noise and vibration suffers from reduced stability bounds due to the error-path delay. The error-path delay results from both the secondary path and the analysis filter bank. To restore the stability bounds, a method has been suggested, whereby the delay is compensated. However, this results in an increased computational complexity. In this brief, we derive an efficient implementation of the error-path delay compensation that results in substantial computational saving

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Circuits and Systems II: Express Briefs, IEEE Transactions on  (Volume:53 ,  Issue: 8 )