Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/8860
Title: Virtual sensing for broadband noise control in a lightly damped enclosure
Authors: Yuan, J 
Issue Date: 2004
Source: Journal of the Acoustical Society of America, 2004, v. 116, no. 2, p. 934-941
Abstract: Available virtual sensing schemes either depend on assumptions that are valid for isolated frequencies, or require heavy online adaptations. A simple method is proposed here to predict the virtual signal exactly for broadband noise control in a lightly damped enclosure. The proposed method requires two physical sensors installed judiciously in a sound field to predict a virtual signal. The method is based on an exact mathematical relation between the virtual and physical sensors, which is valid for the entire frequency of interest. It is possible to use multiple sensor-pairs to reduce the sensitivity of the proposed method with respect to acoustic parameters, such as speed of sound or sensor mismatching. Experimental results are presented to verify the analytical results.
Publisher: Acoustical Society of America
Journal: Journal of the Acoustical Society of America 
ISSN: 0001-4966
EISSN: 1520-8524
DOI: 10.1121/1.1768946
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