NDLI: Active nonlinear noise control with certain nonlinearities in the secondary path

Content Provider	IEEE Xplore Digital Library
Author	DeBrunner, V.E. Dayong Zhou
Copyright Year	2003
Description	Author affiliation: Sch. of Electr. & Comput. Eng., Oklahoma Univ., Norman, OK, USA (DeBrunner, V.E.; Dayong Zhou)
Abstract	The filter-X LMS algorithm is successfully applied in linear active noise control and linear active vibration control. However, when it comes to nonlinear noise or vibration control, or the secondary path has a nonlinearity, this algorithm needs to be modified to ensure that it converges and that it is unbiased. We proposed configurations [V. DeBrunner, et al., 2003] that solve both the main path nonlinearity and the secondary path nonlinearity problems where the nonlinearity can be expressed by Volterra series. However, in practices some nonlinear system can be expressed in much simple form such as a linear filter followed by a memoryless nonlinearity (Wiener model), a memoryless nonlinearity followed by linear filter (Hammerstein model), a linear filter, a memoryless nonlinearity and another linear filter connected in series (LNL model). Such kinds of nonlinear system structure can greatly reduce the computation burden and simplify the implementation structure. In this paper, we give out active nonlinear noise control (ANNC) with these kinds of secondary path nonlinearity. We find with these kinds of nonlinear structure in the secondary path, the ANNC will have much simpler structure and the computation burden can be further reduced.
Starting Page	2053
Ending Page	2057
File Size	318751
Page Count	5
File Format	PDF
ISBN	0780381041
DOI	10.1109/ACSSC.2003.1292341
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2003-11-09
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Active noise reduction Nonlinear filters Adaptive filters Least squares approximation Noise cancellation Automatic voltage control Hydraulic actuators Vibration control Loudspeakers Piezoelectric actuators
Content Type	Text
Resource Type	Article

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