Design of least asymmetric compactly supported orthogonal wavelets via optimization

Author

Zhao, Y. ; Swamy, M.N.S.

Author_Institution

Dept. of Electr. & Comput. Eng., Concordia Univ., Montreal, Que., Canada

Volume

2

fYear

1999

fDate

9-12 May 1999

Firstpage

817

Abstract

The compactly supported orthogonal wavelets have found wide applications in practice. 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 the compactly supported orthogonal wavelets designed via optimization are much less asymmetric and have an approximate linear phase.

Keywords

FIR filters; optimisation; signal processing; wavelet transforms; FIR filters; approximate linear phase; asymmetry; degrees of freedom; design; least asymmetric compactly supported orthogonal wavelets; optimization; signal processing; Application software; Biomedical signal processing; Design optimization; Finite impulse response filter; Linear approximation; Nonlinear distortion; Phase distortion; Polynomials; Signal denoising; Signal design;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical and Computer Engineering, 1999 IEEE Canadian Conference on

Conference_Location

Edmonton, Alberta, Canada

ISSN

0840-7789

Print_ISBN

0-7803-5579-2

Type

conf

DOI

10.1109/CCECE.1999.808069

Filename

808069