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Published 2000 | Published
Book Section - Chapter Open

Estimation-based multi-channel adaptive algorithm for filtered-LMS problems

Abstract

This paper presents an estimation-based adaptive filtering algorithm for the multi-channel Filtered-LMS problems where a number of adaptively controlled secondary sources use multiple reference signals to cancel the effect of a number of primary sources (i.e. disturbance sources) as seen by a number of error sensors. We show that our estimation based approach easily extends to the multi-channel case, and that it maintains all of the stability and performance features of the single-channel solution. The problem of noise cancellation in a one dimensional acoustic duct, and a structural vibration control problem are chosen to examine the main characteristics of the proposed multi-channel adaptive algorithm. The performance of the new multi-channel adaptive algorithm is compared to the performance of a multi-channel implementation of the FAMS algorithm in these cases, and it is shown that the new algorithm provides a faster response, with improved transient behavior and steady-state performance.

Additional Information

© 2000 IEEE. This work is supported by grants from Lockheed Martin Missiles & Space, and the Powell Foundation at Stanford University.

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Published - Estimation-based_multi-channel_adaptive_algorithm_for_filtered-LMS_problems.pdf

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Estimation-based_multi-channel_adaptive_algorithm_for_filtered-LMS_problems.pdf

Additional details

Created:
August 19, 2023
Modified:
March 5, 2024