Instantaneous frequency estimation using the cross Wigner-Ville distribution with application to nonstationary transient detection
O'Shea, Peter J. & Boashash, Boualem (1990) Instantaneous frequency estimation using the cross Wigner-Ville distribution with application to nonstationary transient detection. In International Conference on Acoustics, Speech, and Signal Processing, 1990. ICASSP-90, 3-6 Apr 1990.
Abstract: A method based on an iterative procedure incorporating time-frequency distributions (TFDs) is proposed for instantaneous frequency (IF) estimation of rapidly time-varying signals. This method is then applied to the problem of adaptively detecting a transient of unknown waveshape in white Gaussian noise. For this type of adaptive detection, the signal's time-frequency representation is first estimated, and this estimate is used as the true representation in a time-frequency correlator detector. The IF is assumed to be a critical feature of the transient. Accordingly, the IF is first estimated, and this estimate is then used as an aid to estimate the time-frequency representation of the true signal. This representation is then correlated with the time-frequency representation of the observed signal to provide the appropriate detection statistics
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|Item Type:||Conference Paper|
|Subjects:||Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > ELECTRICAL AND ELECTRONIC ENGINEERING (090600) > Signal Processing (090609)|
|Divisions:||Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering|
|Copyright Owner:||Copyright 1990 IEEE|
|Copyright Statement:||Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.|
|Deposited On:||14 Jul 2005|
|Last Modified:||09 Jun 2010 22:26|
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