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Band-limited Signal Concentration in Time-frequency

Wei, Liying; Kennedy, Rodney; Lamahewa, Tharaka


This paper studies signal concentration in timefrequency using the general constrained variational method of Franks. We apply this method to formulate the minimum fourthmoment time-duration measure in the time interval [-T/2, T/2] for band-limited signals. An orthonormal basis of band-limited functions with the minimum fourth-moment time-duration measure is obtained. Comparing our optimal band-limited signals with Gabor's function with the minimum second-moment timeduration measure, simulation...[Show more]

CollectionsANU Research Publications
Date published: 2009
Type: Conference paper
Source: Proceedings of International Conference on Signal Processing and Communication Systems (ICSPCS 2009)
DOI: 10.1109/ICSPCS.2009.5306397


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