Optimal shift invariant spaces and their Parseval frame generators
Given a set of functions F = {f1, ..., fm} ⊂ L2 (Rd), we study the problem of finding the shift-invariant space V with n generators {φ1, ..., φn} that is "closest" to the functions of F in the sense thatV = under(arg min, V′ ∈ Vn) underover(∑, i = 1, m) wi {norm of matrix} fi - PV′ fi {nor...
| Autores principales: | Cabrelli, Carlos Alberto, Molter, Ursula Maria |
|---|---|
| Publicado: |
2007
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| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10635203_v23_n2_p273_Aldroubi http://hdl.handle.net/20.500.12110/paper_10635203_v23_n2_p273_Aldroubi |
| Aporte de: |
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