Generalized average sampling and reconstruction for wavelet subspaces

2018 ◽  
Vol 26 (2) ◽  
pp. 333-342
Author(s):  
S. Yugesh ◽  
P. Devaraj
Author(s):  
Haizhen Li ◽  
Yan Tang

This paper mainly studies the average sampling and reconstruction in shift-invariant subspaces of mixed Lebesgue spaces $L^{p,q}(\mathbb{R}^{d+1})$, under the condition that the generator $\varphi$ of the shift-invariant subspace belongs to a hybrid-norm space of mixed form, which is weaker than the usual assumption of Wiener amalgam space and allows to control the orders $p,q$. First, the sampling stability for two kinds of average sampling functionals are established. Then, we give the corresponding iterative approximation projection algorithms with exponential convergence for recovering the time-varying shift-invariant signals from the average samples.


2015 ◽  
Vol 39 (11) ◽  
pp. 2930-2938
Author(s):  
Yingchun Jiang ◽  
Suping Wang ◽  
Meixiang Yang

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