NDLI: An Improved Active Noise Control Algorithm Without Secondary Path Identification Based on the Frequency-Domain Subband Architecture

Content Provider	IEEE Xplore Digital Library
Author	Ming Wu Guoyue Chen Xiaojun Qiu
Copyright Year	2006
Abstract	Common active noise control (ANC) algorithms need to identify the secondary path transfer functions between the output of the adaptive control filters and the error sensors, and then use the information to guide the direction of control filter coefficient updating. Recently, Zhou et al. proposed an ANC algorithm without secondary path identification, and we improve their algorithm in this paper. For single-tone and narrowband noise control, the direction of control filter coefficient updating has four choices 180deg, 0deg, and plusmn90deg. We test the four update directions and select the one that works the best. If for all four update directions, the system converges slowly or diverges, we adjust the step size and test again with the new step size. The multitone and broadband noise control problems are converted into several single-tone and narrowband noise control problems by means of a frequency-domain delayless subband architecture. Compared to Zhou's algorithm, our proposed method yields good performance and converges quickly. Simulation results confirm the effectiveness of our proposed algorithm.
Sponsorship	IEEE Signal Processing Society
Starting Page	1409
Ending Page	1419
Page Count	11
File Size	685549
File Format	PDF
ISSN	15587916
Volume Number	16
Issue Number	8
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-11-01
Publisher Place	U.S.A.
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Active noise reduction Adaptive filters Information filtering Information filters Narrowband Transfer functions Adaptive control Error correction System testing Delay delayless subband algorithm Active noise control (ANC) adaptive filters
Content Type	Text
Resource Type	Article
Subject	Acoustics and Ultrasonics Electrical and Electronic Engineering

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