Journal ArticleDOI
Active noise control
TLDR
The importance of having a clear understanding of the principles behind both the acoustics and the electrical control in order to appreciate the advantages and limitations of active noise control is emphasized.Abstract:
Active noise control exploits the long wavelengths associated with low frequency sound. It works on the principle of destructive interference between the sound fields generated by the original primary sound source and that due to other secondary sources, acoustic outputs of which can be controlled. The acoustic objectives of different active noise control systems and the electrical control methodologies that are used to achieve these objectives are examined. The importance of having a clear understanding of the principles behind both the acoustics and the electrical control in order to appreciate the advantages and limitations of active noise control is emphasized. A brief discussion of the physical basis of active sound control that concentrates on three-dimensional sound fields is presented. >read more
Citations
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Journal ArticleDOI
Active noise control: a tutorial review
Sen M. Kuo,Dennis R. Morgan +1 more
TL;DR: The basic adaptive algorithm for ANC is developed and analyzed based on single-channel broad-band feedforward control, then modified for narrow-bandFeedforward and adaptive feedback control, which are expanded to multiple-channel cases.
Journal ArticleDOI
Genetic algorithms and their applications
TL;DR: The genetic algorithm is introduced as an emerging optimization algorithm for signal processing and a number of applications, such as IIR adaptive filtering, time delay estimation, active noise control, and speech processing, that are being successfully implemented are described.
Journal ArticleDOI
The evolution of multiferroics
TL;DR: In this article, a review of multiferroic thin-film heterostructures, device architectures, and domain and interface effects is presented. But the focus of the field is now shifting into neighbouring research areas, as discussed in this review.
Journal ArticleDOI
Adaptive Volterra filters for active control of nonlinear noise processes
Li Tan,Jean Jiang +1 more
TL;DR: Numerical simulation results show that the developed VFXLMS algorithm achieves performance improvement over the standard filtered-X LMS algorithm for the following two situations: the reference noise is a nonlinear noise process, and at the same time, the secondary path estimate is of nonminimum phase; and the primary path exhibits the nonlinear behavior.
BookDOI
Handbook of Noise and Vibration Control.
TL;DR: The Handbook of Noise and Vibration Control by Malcolm J. Crocker as discussed by the authors, New Jersey, 2007 1584 pp. Price: $195.00 (hardcover) ISBN: 0471395994
References
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Book
Adaptive filtering prediction and control
Graham C. Goodwin,Kwai Sang Sin +1 more
TL;DR: This unified survey focuses on linear discrete-time systems and explores the natural extensions to nonlinear systems and summarizes the theoretical and practical aspects of a large class of adaptive algorithms.
Journal ArticleDOI
Adaptive noise cancelling: Principles and applications
Bernard Widrow,J.R. Glover,John M. McCool,J. Kaunitz,C.S. Williams,R.H. Hearn,James R. Zeidler,Jr. Eugene Dong,R.C. Goodlin +8 more
TL;DR: It is shown that in treating periodic interference the adaptive noise canceller acts as a notch filter with narrow bandwidth, infinite null, and the capability of tracking the exact frequency of the interference; in this case the canceller behaves as a linear, time-invariant system, with the adaptive filter converging on a dynamic rather than a static solution.
Journal ArticleDOI
A multiple error LMS algorithm and its application to the active control of sound and vibration
TL;DR: An algorithm is presented to adapt the coefficients of an array of FIR filters, whose outputs are linearly coupled to another array of error detection points, so that the sum of all the mean square error signals is minimized.
Journal ArticleDOI
Inverse filtering of room acoustics
Masato Miyoshi,Yutaka Kaneda +1 more
TL;DR: In this article, a novel method is proposed for realizing exact inverse filtering of acoustic impulse responses in room, based on the principle called the multiple-input/output inverse theorem (MINT).
Proceedings ArticleDOI
Adaptive inverse control
Bernard Widrow,Michel Bilello +1 more
TL;DR: In this paper, a method for adaptive control of plant dynamics and for controlling plant disturbance for unknown linear plants using neural networks is described. But this method is not suitable for control of nonlinear plants.