Design of least-asymmetric compactly supported orthogonal wavelets via optimization

Authors
Zhao, Y Swamy, MNS
Citation
Y. Zhao et Mns. Swamy, Design of least-asymmetric compactly supported orthogonal wavelets via optimization, CAN J EL C, 26(1), 2001, pp. 21-26
Citations number
13
Categorie Soggetti
Eletrical & Eletronics Engineeing
Journal title
CANADIAN JOURNAL OF ELECTRICAL AND COMPUTER ENGINEERING-REVUE CANADIENNE DE GENIE ELECTRIQUE ET INFORMATIQUE
ISSN journal
08408688 → ACNP
Volume
26
Issue
1
Year of publication
2001
Pages
21 - 26
Database
ISI
SICI code
0840-8688(200101)26:1<21:DOLCSO>2.0.ZU;2-1
Abstract
Compactly supported orthogonal wavelets have found wide application in prac tice. A disadvantage of these wavelets is that they are not symmetric. Thus they do not have a linear phase, which is a property often desired in some applications such as signal processing. In this paper, degrees of freedom are introduced in the design to minimize the asymmetry of the wavelets. The results indicate that compactly supported orthogonal wavelets designed via optimization are much less asymmetric and have an approximately linear pha se.