A methodology for detection and classification of some underwater acoustic signals using time-frequency analysis techniques

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A methodology for detection and classification of some underwater acoustic signals using time-frequency analysis techniques

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dc.contributor.author Boashash, Boualem
dc.contributor.author O'Shea, Peter
dc.date.accessioned 2011-07-23T03:41:38Z
dc.date.available 2011-07-23T03:41:38Z
dc.date.issued 1990-11
dc.identifier.citation IEEE Transactions on Acoustics, Speech and Signal Processing, Nov 1990,Volume 38, Issue 11,page(s): 1829 en_US
dc.identifier.issn 0096-3518
dc.identifier.uri http://hdl.handle.net/10576/10712
dc.description.abstract Signal detection techniques based on time-frequency signal analysis with the Wigner-Ville distribution (WVD) and the cross Wigner-Ville distribution (XWVD) are presented. These techniques are shown to provide high-resolution signal characterization in a time-frequency space, and good noise rejection performance. This type of detection is applied to the signaturing, detection, and classification of specific machine sounds: the individual cylinder firings of a marine engine. For this task, a four-step procedure has been devised. The autocorrelation function (ACF) is first used to ascertain the number of engine cylinders and the firing rate of the engine. Further correlation techniques are then used to detect the time at which individual cylinder firing events occur. WVD- and XWVD-based analyses follow to procedure high-resolution time-frequency signatures. Finally, two-dimensional correlations are used for the classification of the individual cylinders. The proposed methodology is tested on real data. XWVD-based detection is also applied to detection of a transient with unknown waveshape (using real data). en_US
dc.language.iso en en_US
dc.publisher IEEE en_US
dc.subject Acoustic noise en_US
dc.subject Acoustic signal detection en_US
dc.subject Engine cylinders en_US
dc.subject Radar detection en_US
dc.subject Signal analysis en_US
dc.subject time-frequency analysis en_US
dc.subject Underwater acoustics en_US
dc.subject Underwater tracking en_US
dc.subject Wigner-Ville distribution en_US
dc.subject autocorrelation function en_US
dc.subject cross Wigner-Ville distribution en_US
dc.subject engine firing rate en_US
dc.subject signal classification en_US
dc.subject signal detection en_US
dc.subject signal signaturing en_US
dc.subject two-dimensional correlations en_US
dc.subject underwater acoustic signals en_US
dc.subject time-frequency signal processing en_US
dc.subject Time-Frequency detection en_US
dc.subject Time-Frequency classification en_US
dc.subject Time-Frequency identification en_US
dc.subject Time-Frequency Signatures en_US
dc.subject Signaturing en_US
dc.subject transient detection en_US
dc.subject Time-Frequency correlation en_US
dc.title A methodology for detection and classification of some underwater acoustic signals using time-frequency analysis techniques en_US
dc.type Article en_US

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