Conjugate symmetric sequency-ordered complex Hadamard transform

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Conjugate symmetric sequency-ordered complex Hadamard transform

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dc.contributor.author Aung, Aye
dc.contributor.author Ng, Boon Poh
dc.contributor.author Rahardja, Susanto
dc.date.accessioned 2011-09-21T04:15:57Z
dc.date.available 2011-09-21T04:15:57Z
dc.date.copyright 2009
dc.date.issued 2011-09-21
dc.identifier.citation Aung, A., Ng, B. P., & Rahardja, S. (2009). Conjugate Symmetric Sequency-Ordered Complex Hadamard Transform. IEEE Transactions on Signal Processing, 57(7), 2582-2593.
dc.identifier.issn 1053-587X
dc.identifier.uri http://hdl.handle.net/10220/7088
dc.description.abstract A new transform known as conjugate symmetric sequency-ordered complex Hadamard transform (CS-SCHT) is presented in this paper. The transform matrix of this transform possesses sequency ordering and the spectrum obtained by the CS-SCHT is conjugate symmetric. Some of its important properties are discussed and analyzed. Sequency defined in the CS-SCHT is interpreted as compared to frequency in the discrete Fourier transform. The exponential form of the CS-SCHT is derived, and the proof of the dyadic shift invariant property of the CS-SCHT is also given. The fast and efficient algorithm to compute the CS-SCHT is developed using the sparse matrix factorization method and its computational load is examined as compared to that of the SCHT. The applications of the CS-SCHT in spectrum estimation and image compression are discussed. The simulation results reveal that the CS-SCHT is promising to be employed in such applications.
dc.format.extent 12 p.
dc.language.iso en
dc.relation.ispartofseries IEEE transactions on signal processing
dc.rights © 2009 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. The published version is available at: [DOI: http://dx.doi.org/10.1109/TSP.2009.2017572].
dc.subject DRNTU::Engineering::Electrical and electronic engineering::Electronic systems::Signal processing.
dc.title Conjugate symmetric sequency-ordered complex Hadamard transform
dc.type Journal Article
dc.contributor.school School of Electrical and Electronic Engineering
dc.identifier.doi http://dx.doi.org/10.1109/TSP.2009.2017572
dc.description.version Accepted version
dc.identifier.rims 155440

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