Theory, Implementation and Application of Time-Frequency Signal Analysis using the Wigner-Ville Distribution

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Theory, Implementation and Application of Time-Frequency Signal Analysis using the Wigner-Ville Distribution

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Title: Theory, Implementation and Application of Time-Frequency Signal Analysis using the Wigner-Ville Distribution
Author: Boashash, B
Abstract: The spectral analysis of non-stationary signals cannot be accomplished by the simple use of classical time domain representations such as correlation methods or frequency domain representations based on the Fourier Transform. For such signals, a concept of Time-Frequency Distribution (TFD) has been defined which takes jointly into account the variables of time and frequency. One of these TFD's, the Wigner-Ville distribution has been shown to possess the most interesting properties for use as a tool for Time-Frequency Signal Analysis. Its properties are reviewed, and it is shown how they can be useful for a practical analysis. The computational aspects for efficiently implementing the method are discussed, and an example of application to the analysis of transient signals is presented.
Description: This is one of the earliest papers to demonstrate the need for using time frequency distributions (TFD) when one deals with non-stationary signals such as speech, seismic, oceanographic, biomedical and biological signal analysis [30]. (Additional details can be found in the comprehensive book on Time-Frequency Signal Analysis and Processing (see http://www.elsevier.com/locate/isbn/0080443354). In addition, the most recent upgrade of the original software package that calculates Time-Frequency Distributions and Instantaneous Frequency estimators can be downloaded from the web site: www.time-frequency.net. This was the first software developed in the field, and it was first released publicly in 1987 at the 1st ISSPA conference held in Brisbane, Australia, and then continuously updated).
URI: http://hdl.handle.net/10576/10817
Date: 1987-09

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