Please use this identifier to cite or link to this item:
https://hdl.handle.net/2440/78346
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dc.contributor.author | Das, D. | - |
dc.contributor.author | Moreau, D. | - |
dc.contributor.author | Cazzolato, B. | - |
dc.date.issued | 2013 | - |
dc.identifier.citation | Mechanical Systems and Signal Processing, 2013; 37(1-2):440-454 | - |
dc.identifier.issn | 0888-3270 | - |
dc.identifier.issn | 1096-1216 | - |
dc.identifier.uri | http://hdl.handle.net/2440/78346 | - |
dc.description.abstract | The computational complexity of the virtual FXLMS algorithm is higher than that of the conventional FXLMS algorithm. The additional complexity comes from computation of three secondary path transfer functions (as opposed to one) and a transfer function between the physical and the virtual microphones. The order of these transfer functions may be very high in practical situations where the acoustic damping is low. The high computational complexity of the virtual FXLMS algorithm imposes issues like high power consumption, making it difficult to implement the algorithm in battery operated ANC devices such as active headsets. In addition, the operating sampling frequency of the algorithm is limited and this in turn restricts its operation to relatively low frequency applications. In this paper, a new virtual FXLMS algorithm is derived by implementing all of the secondary path transfer functions in the frequency domain. The algorithm is simulated using measured transfer functions in a duct with low acoustic damping. Implementation schemes are proposed for the new frequency-domain virtual FXLMS algorithm, citing its advantages for use as an efficient real-time active noise control algorithm. © 2013 Elsevier Ltd. | - |
dc.description.statementofresponsibility | Debi Prasad Das, Danielle J. Moreau, Ben S.Cazzolato | - |
dc.language.iso | en | - |
dc.publisher | Academic Press Ltd Elsevier Science Ltd | - |
dc.rights | Copyright © 2013 Elsevier Ltd. All rights reserved. | - |
dc.source.uri | http://dx.doi.org/10.1016/j.ymssp.2012.12.005 | - |
dc.subject | Active noise control | - |
dc.subject | Adaptive filter | - |
dc.subject | Frequency-domain adaptive filter | - |
dc.subject | Computational complexity | - |
dc.subject | Virtual ANC | - |
dc.title | A computationally efficient frequency-domain filtered-X LMS algorithm for virtual microphone | - |
dc.type | Journal article | - |
dc.identifier.doi | 10.1016/j.ymssp.2012.12.005 | - |
pubs.publication-status | Published | - |
dc.identifier.orcid | Cazzolato, B. [0000-0003-2308-799X] | - |
Appears in Collections: | Aurora harvest Environment Institute publications Mechanical Engineering publications |
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File | Description | Size | Format | |
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hdl_78346.pdf | Accepted version | 358.82 kB | Adobe PDF | View/Open |
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