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Type: Journal article
Title: A moving zone of quiet for narrowband noise in a one-dimensional duct using virtual sensing
Author: Petersen, C.
Zander, A.
Cazzolato, B.
Hansen, C.
Citation: Journal of the Acoustical Society of America, 2007; 121(3):1459-1470
Publisher: Acoustical Soc Amer Amer Inst Physics
Issue Date: 2007
ISSN: 0001-4966
Statement of
Cornelis D. Petersen, Anthony C. Zander, Ben S. Cazzolato, and Colin H. Hansen
Abstract: A frequent problem in active noise control is that the zone of quiet created at the error sensor tends to be very small. This means that the error sensor generally needs to be located close to an observer's ear, which might not always be a convenient or feasible solution. Virtual sensing is a method that can move the zone of quiet away from the error sensor to a desired location that is spatially fixed. This method has been investigated previously, and has shown potential to improve the performance of an active noise control system. However, it is very likely that the desired location of the zone of quiet is not spatially fixed. An active noise control system incorporating a virtual sensing method thus has to be able to create a moving zone of quiet that tracks the observer's ears. This paper presents a method for creating a moving zone of quiet based on the LMS virtual microphone technique. To illustrate the proposed method, it is implemented in an acoustic duct and narrowband control results are presented. These results show that a moving zone of quiet was effectively created inside the duct for narrowband noise.
Keywords: Humans
Models, Theoretical
User-Computer Interface
Pharmaceutical Vehicles
Description: © 2007 Acoustical Society of America
DOI: 10.1121/1.2431583
Appears in Collections:Aurora harvest
Environment Institute publications
Mechanical Engineering publications

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