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Adaptive SPWV distribution with adjustable volume 2-D separable kernel

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Original languageEnglish
Title of host publication10th IEEE International Conference on Electronics, Circuits and Systems, 2003 (ICECS 2003)
Publisher or commissioning bodyInstitute of Electrical and Electronics Engineers (IEEE)
Pages68 - 71
Number of pages4
ISBN (Print)0780381637
StatePublished - Dec 2003
Event10th International Conference on Electronics, Circuits and Systems - Sharjah, United Arab Emirates


Conference10th International Conference on Electronics, Circuits and Systems
CountryUnited Arab Emirates


In practical time-frequency (T-F) analysis of nonstationary signals associated with the use of the smooth pseudo Wigner-Ville distribution (SPWV), an important issue is a choice of the smoothing window. To address this problem, a fast sub-optimal technique is proposed, relating the window length to the approximate slope of the frequency modulation. The results obtained by using this automated procedure are comparable to results given by supervised decompositions and are more (locally) adapted. The developed method has been used in processing of radar returns. In order to objectively assess the performance of the transforms, several measures can be used. For signals with unknown modulation laws, cost functions are available, including measures based on entropy function. Their application to evaluation of the obtained T-F distributions is demonstrated.

Additional information

Rose publication type: Conference contribution Sponsorship: This work is supported by AMs UK. Terms of use: Copyright © 2003 IEEE. Reprinted from 10th IEEE International Conference on Electronics, Circuits and Systems, 2003 (ICECS 2003). This material is posted here with permission of the IEEE. Such permission of the IEEE does not in any way imply IEEE endorsement of any of the University of Bristol's products or services. Internal or 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 must be obtained from the IEEE by writing to By choosing to view this document, you agree to all provisions of the copyright laws protecting it.


10th International Conference on Electronics, Circuits and Systems

Duration1 Dec 20031 Dec 2003
CountryUnited Arab Emirates

Event: Conference

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