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  4. Construction of Hilbert transform pairs of wavelet bases and optimal time-frequency localization
 
conference paper

Construction of Hilbert transform pairs of wavelet bases and optimal time-frequency localization

Chaudhury, Kunal N.
•
Unser, Michael  
2008
2008 Ieee International Conference On Acoustics, Speech And Signal Processing
33rd IEEE International Conference on Acoustics, Speech and Signal Processing

We propose a novel method of constructing exact Hilbert transform (HT) pairs of wavelet bases using fractional B-splines and state necessary and sufficient conditions for generating such wavelet pairs. In particular, we demonstrate how HT pairs of biorthogonal wavelet bases of L-2 (R) can be constructed using well-localized scaling functions with identical Riesz bounds. Finally, we illustrate this concept by constructing a family of analytic Gabor-like wavelets that exhibit near optimal time-frequency localization.

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Type
conference paper
DOI
10.1109/ICASSP.2008.4518350
Web of Science ID

WOS:000257456702142

Author(s)
Chaudhury, Kunal N.
Unser, Michael  
Date Issued

2008

Publisher

Ieee Service Center, 445 Hoes Lane, Po Box 1331, Piscataway, Nj 08855-1331 Usa

Published in
2008 Ieee International Conference On Acoustics, Speech And Signal Processing
Start page

3277

End page

3280

Subjects

B-spline

•

Hilbert transform

•

biorthogonal

•

wavelet basis

•

time-frequency localization

•

Gabor function

URL

URL

http://bigwww.epfl.ch/publications/chaudhury0801.html

URL

http://bigwww.epfl.ch/publications/chaudhury0801.pdf

URL

http://bigwww.epfl.ch/publications/chaudhury0801.ps
Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
LIB  
Event nameEvent placeEvent date
33rd IEEE International Conference on Acoustics, Speech and Signal Processing

Las Vegas, NV

Mar 30-Apr 04, 2008

Available on Infoscience
November 30, 2010
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/61209
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