High resolution time-frequency analysis by fractional domain warping

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buir.contributor.authorArıkan, Orhan
buir.contributor.orcidArıkan, Orhan|0000-0002-3698-8888
dc.citation.epage3556en_US
dc.citation.spage3553en_US
dc.contributor.authorÖzdemir, Ahmet Kemalen_US
dc.contributor.authorDurak, Lütfiyeen_US
dc.contributor.authorArıkan, Orhanen_US
dc.coverage.spatialSalt Lake City, UT, USA
dc.date.accessioned2016-02-08T11:57:44Z
dc.date.available2016-02-08T11:57:44Z
dc.date.issued2001-05en_US
dc.departmentDepartment of Electrical and Electronics Engineeringen_US
dc.descriptionDate of Conference: 7-11 May 2001
dc.descriptionConference name: 2001 IEEE International Conference on Acoustics, Speech, and Signal Processing. Proceedings
dc.description.abstractA new algorithm is proposed to obtain very high resolution time-frequency analysis of signal components with curved time-frequency supports. The proposed algorithm is based on fractional Fourier domain warping concept introduced in this work. By integrating this warping concept to the recently developed directionally smoothed Wigner distribution algorithm [1], the high performance of that algorithm on linear, chirp-like components is extended to signal components with curved time-frequency supports. The main advantage of the algorithm is its ability to suppress not only the cross-cross terms, but also the auto-cross terms in the Wigner distribution. For a signal with N samples duration, the computational complexity of the algorithm is O(N log N) flops for each computed slice of the new time-frequency distribution.en_US
dc.description.provenanceMade available in DSpace on 2016-02-08T11:57:44Z (GMT). No. of bitstreams: 1 bilkent-research-paper.pdf: 70227 bytes, checksum: 26e812c6f5156f83f0e77b261a471b5a (MD5) Previous issue date: 2001en
dc.identifier.doi10.1109/ICASSP.2001.940609
dc.identifier.urihttp://hdl.handle.net/11693/27609
dc.language.isoEnglishen_US
dc.publisherIEEE
dc.relation.isversionofhttps://doi.org/10.1109/ICASSP.2001.940609
dc.source.titleICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedingsen_US
dc.subjectFractional Fourier transform domainen_US
dc.subjectTime frequency analysisen_US
dc.subjectWigner distributionen_US
dc.subjectAlgorithmsen_US
dc.subjectComputational complexityen_US
dc.subjectFourier transformsen_US
dc.subjectFrequency domain analysisen_US
dc.subjectTime domain analysisen_US
dc.subjectSignal processingen_US
dc.titleHigh resolution time-frequency analysis by fractional domain warpingen_US
dc.typeConference Paperen_US

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