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À propos de : Coarse quantization for random interleaved sampling of bandlimited signals        

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  • Coarse quantization for random interleaved sampling of bandlimited signals
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  • The compatibility of unsynchronized interleaved uniform sampling with Sigma-Delta analog-to-digital conversion is investigated. Let f be a bandlimited signal that is sampled on a collection of N interleaved grids  { kT +  Tn}  k ∈ Z with offsets \hbox{$\{T_n\}_{n=1}^N\subset [0,T]$}. If the offsets Tn are chosen independently and uniformly at random from  [0 ,T]  and if the sample values of f are quantized with a first order Sigma-Delta algorithm, then with high probability the quantization error \hbox{$|f(t) - \widetilde{f}(t)|$}is at most of order N-1log N.
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  • m2an110057
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  • © EDP Sciences, SMAI, 2012
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  • EDP Sciences, SMAI
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