Generalized sampling in shift invariant spaces with frames |
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Authors: | Stefan Ericsson |
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Institution: | Department of Engineering Sciences and Mathematics,Lulea University of Technology, SE-971 87 Lule~, Sweden |
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Abstract: | Generalized sampling in a shift invariant subspace V of L2 (R) is considered. A function f in V is processed with different filters Lm and then one tries to reconstruct f from the samples Lmf (j'k). We develop a theory of how to do this in the case when V possesses a shift invariant frame. Special attention is paid to the question: How to obtain dual frames with compact support? |
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Keywords: | Generalized sampling frames Riesz basis reproducing kernel shift invariant spaces |
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