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Abstract:
In digital signal and image processing one can only process discrete signals of finite length, and the space C-L is the preferred setting. Recently, Kutyniok and Strohmer constructed orthonormal Wilson bases for C-L with general lattices of volume L/2 ( L even). In this paper, we extend this construction to Wilson frames for C-L with general lattices of volume L/2K, where K is an element of N and L is an element of 2KN. We obtain a necessary and sufficient condition for two sequences having Wilson structure to be dual frames for C-L. When the window function satisfies some symmetry property, we obtain a characterization of a Wilson system to be a tight frame for C-L, show that a Wilson frame for C-L can be derived from the underlying Gabor frame, and that the dual frame having Wilson structure can also be derived from the canonical Gabor dual of the underlying Gabor frame.
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Source :
INTERNATIONAL JOURNAL OF WAVELETS MULTIRESOLUTION AND INFORMATION PROCESSING
ISSN: 0219-6913
Year: 2016
Issue: 6
Volume: 14
1 . 4 0 0
JCR@2022
ESI Discipline: COMPUTER SCIENCE;
ESI HC Threshold:167
CAS Journal Grade:4
Cited Count:
WoS CC Cited Count: 0
SCOPUS Cited Count:
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count:
Chinese Cited Count:
30 Days PV: 8
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