open access

https://hdl.handle.net/2115/39824

All Pass Filtered Reference LMS Algorithm for Adaptive Feedback Active Noise Control

英語

2009-10-04

Asia-Pacific Signal and Information Processing Association, 2009 Annual Summit and Conference, International Organizing Committee

Proceedings : APSIPA ASC 2009 : Asia-Pacific Signal and Information Processing Association, 2009 Annual Summit and Conference

859-865

APSIPA ASC 2009: Asia-Pacific Signal and Information Processing Association, 2009 Annual Summit and Conference. 4-7 October 2009. Sapporo, Japan. Oral session: Signal Processing Theory and Methods II (7 October 2009).

This paper presents a new structure for adaptive feedback active noise control. It is shown that the minimum phase component of the secondary path can be directly compensated while ANC controller generates the anti-noise signal. For compensation of the all pass component, the reference signal is filtered by only the all pass component of the secondary path and, then, used in the least mean square adaptation algorithm. Simulation results show that the proposed structure can dramatically increase the convergence rate of the adaptive feedback active noise controllers and also improve the band width within which adaptive feedback active noise control is efficient.

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