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An efficient projection procedure is derived for use of orthogonal multiwavelets in the analysis of discrete data sequences. A family of simple prefilters corresponding to numerical quadrature evaluation of the projection integrals provides exact results for locally polynomial data. The full approximation order of the multiwavelet basis can thus always be enabled. For nonpolynomial signals, the prefilters provide approximations to the coefficients of the multiwavelet series whose convergence accelerates quickly with increase in sampling rate. Comparison is also made with previous time-invariant multiwavelet prefilters
Published in:
Signal Processing, IEEE Transactions on
(Volume:48
,
Issue:
11
)
Date of Publication: Nov 2000
- Page(s):
- 3100 - 3108
- ISSN :
- 1053-587X
- INSPEC Accession Number:
- 6753283
- Digital Object Identifier :
- 10.1109/78.875467
- Product Type:
- Journals & Magazines
- Date of Current Version :
- 06 August 2002
- Issue Date :
- Nov 2000
- Sponsored by :
- IEEE Signal Processing Society
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