Instantaneous frequency of signals: Concepts, estimation techniques and applications

QSpace/Manakin Repository

Instantaneous frequency of signals: Concepts, estimation techniques and applications

Show full item record


Title: Instantaneous frequency of signals: Concepts, estimation techniques and applications
Author: Boashash, B; Jones, G; O'Shea, P
Abstract: The instantaneous frequency (IF) of a signal is a parameter which is of significant practical importance, since in many situations it corresponds to some physical phenomenon. This paper considers the definition of the IF, describes a number of ways of estimating it (along with a consideration of how closely the estimates are likely to correspond to physical reality), and presents two applications where IF estimation is used.
Description: This paper is an IF review paper and shows many interesting results such as: 1) that the signal phase spectrum theta(f), and hence its Time-Delay depend on both the phase and amplitude of the time signal, whereas the IF depends, by Ville's or Gabor’s definition, depends only on the phase term. 2) the study of the cross-terms in the STFT and therefore the Spectrogram (in appendix 2). (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/10576/10821
Date: 1989

Files in this item

Files Size Format View
Boashash-Jones- ... stimation-applications.pdf 1.074Mb PDF View/Open

This item appears in the following Collection(s)

Show full item record

Search QSpace


Advanced Search

Browse

My Account