Sampling and reconstruction in shift-invariant spaces on $$\mathbb {R}^d$$ R d

Verfasser / Beitragende:
[A. Selvan, R. Radha]
Ort, Verlag, Jahr:
2015
Enthalten in:
Annali di Matematica Pura ed Applicata (1923 -), 194/6(2015-12-01), 1683-1706
Format:
Artikel (online)
ID: 605496099
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024 7 0 |a 10.1007/s10231-014-0439-x  |2 doi 
035 |a (NATIONALLICENCE)springer-10.1007/s10231-014-0439-x 
245 0 0 |a Sampling and reconstruction in shift-invariant spaces on $$\mathbb {R}^d$$ R d  |h [Elektronische Daten]  |c [A. Selvan, R. Radha] 
520 3 |a Let $$\phi \in W(C,\ell ^1)$$ ϕ ∈ W ( C , ℓ 1 ) such that $$\{\tau _n\phi :n\in \mathbb {Z}^d\}$$ { τ n ϕ : n ∈ Z d } forms a Riesz basis for $$V(\phi )$$ V ( ϕ ) . It is shown that $$\mathbb {Z}^d$$ Z d is a stable set of sampling for $$V(\phi )$$ V ( ϕ ) if and only if $$\Phi ^\dagger (x)\ne 0$$ Φ † ( x ) ≠ 0 , for every $$x\in \mathbb {T}^d$$ x ∈ T d , where $$\Phi ^{\dagger }(x):=\sum _{n\in \mathbb {Z}^d}\phi (n)e^{2\pi in\cdot x},~~ x\in \mathbb {T}^d$$ Φ † ( x ) : = ∑ n ∈ Z d ϕ ( n ) e 2 π i n · x , x ∈ T d . Sampling formulae are provided for reconstructing a function $$f\in V(\phi )$$ f ∈ V ( ϕ ) from uniform samples using Zak transform and complex analytic technique. The problem of sampling and reconstruction is discussed in the case of irregular samples also. The theory is illustrated with some examples, and numerical implementation for reconstruction of a function from its nonuniform samples is provided using MATLAB. 
540 |a Fondazione Annali di Matematica Pura ed Applicata and Springer-Verlag Berlin Heidelberg, 2014 
690 7 |a Frames  |2 nationallicence 
690 7 |a Laurent operator  |2 nationallicence 
690 7 |a Riesz basis  |2 nationallicence 
690 7 |a Shift-invariant space  |2 nationallicence 
690 7 |a Wiener amalgam space  |2 nationallicence 
690 7 |a Zak transform  |2 nationallicence 
700 1 |a Selvan  |D A.  |u Department of Mathematics, Indian Institute of Technology Madras, 600 036, Chennai, India  |4 aut 
700 1 |a Radha  |D R.  |u Department of Mathematics, Indian Institute of Technology Madras, 600 036, Chennai, India  |4 aut 
773 0 |t Annali di Matematica Pura ed Applicata (1923 -)  |d Springer Berlin Heidelberg  |g 194/6(2015-12-01), 1683-1706  |x 0373-3114  |q 194:6<1683  |1 2015  |2 194  |o 10231 
856 4 0 |u https://doi.org/10.1007/s10231-014-0439-x  |q text/html  |z Onlinezugriff via DOI 
898 |a BK010053  |b XK010053  |c XK010000 
900 7 |a Metadata rights reserved  |b Springer special CC-BY-NC licence  |2 nationallicence 
908 |D 1  |a research-article  |2 jats 
949 |B NATIONALLICENCE  |F NATIONALLICENCE  |b NL-springer 
950 |B NATIONALLICENCE  |P 856  |E 40  |u https://doi.org/10.1007/s10231-014-0439-x  |q text/html  |z Onlinezugriff via DOI 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Selvan  |D A.  |u Department of Mathematics, Indian Institute of Technology Madras, 600 036, Chennai, India  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Radha  |D R.  |u Department of Mathematics, Indian Institute of Technology Madras, 600 036, Chennai, India  |4 aut 
950 |B NATIONALLICENCE  |P 773  |E 0-  |t Annali di Matematica Pura ed Applicata (1923 -)  |d Springer Berlin Heidelberg  |g 194/6(2015-12-01), 1683-1706  |x 0373-3114  |q 194:6<1683  |1 2015  |2 194  |o 10231