Band-limited Signal Concentration in Time-frequency

dc.contributor.authorWei, Liying
dc.contributor.authorKennedy, Rodney
dc.contributor.authorLamahewa, Tharaka
dc.coverage.spatialOmaha USA
dc.date.accessioned2015-12-10T22:23:12Z
dc.date.createdSeptember 28-30 2009
dc.date.issued2009
dc.date.updated2016-02-24T10:59:28Z
dc.description.abstractThis 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 results show that our function has better properties: 1) faster decaying rate; 2) larger main lobe; and 3) higher energy concentration measure.
dc.identifier.isbn9781424444748
dc.identifier.urihttp://hdl.handle.net/1885/52673
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE Inc)
dc.relation.ispartofseriesInternational Conference on Signal Processing and Communication Systems (ICSPCS 2009)
dc.sourceProceedings of International Conference on Signal Processing and Communication Systems (ICSPCS 2009)
dc.subjectKeywords: Band-limited functions; Band-limited signal; Energy concentration; Orthonormal basis; Simulation result; Time frequency; Time interval; Variational methods; Signal processing; Communication systems
dc.titleBand-limited Signal Concentration in Time-frequency
dc.typeConference paper
local.bibliographicCitation.lastpage6
local.bibliographicCitation.startpage1
local.contributor.affiliationWei, Liying, College of Engineering and Computer Science, ANU
local.contributor.affiliationKennedy, Rodney, College of Engineering and Computer Science, ANU
local.contributor.affiliationLamahewa, Tharaka, College of Engineering and Computer Science, ANU
local.contributor.authoremailu8607590@anu.edu.au
local.contributor.authoruidWei, Liying, u4271045
local.contributor.authoruidKennedy, Rodney, u8607590
local.contributor.authoruidLamahewa, Tharaka, u3995913
local.description.embargo2037-12-31
local.description.notesImported from ARIES
local.description.refereedYes
local.identifier.absfor090609 - Signal Processing
local.identifier.ariespublicationu4334215xPUB252
local.identifier.doi10.1109/ICSPCS.2009.5306397
local.identifier.scopusID2-s2.0-70649084282
local.identifier.uidSubmittedByu4334215
local.type.statusPublished Version

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