Title
Sigma-Delta quantization of sub-Gaussian frame expansions and its application to compressed sensing.
Abstract
Suppose that the collection $\{e_{i}\}_{i=1}^{m}$ forms a frame for ℝk, where each entry of the vector ei is a sub-Gaussian random variable. We consider expansions in such a frame, which are then quantized using a Sigma–Delta scheme. We show that an arbitrary signal in ℝk can be recovered from its quantized frame coefficients up to an error which decays root-exponentially in the oversampling rate ...
Year
DOI
Venue
2013
10.1093/imaiai/iat007
Information and Inference: A Journal of the IMA
Keywords
Field
DocType
compressed sensing,quantization,random frames,root-exponential accuracy,Sigma–Delta,sub-Gaussian matrices
Discrete mathematics,Random variable,Mathematical optimization,Oversampling,Polynomial,Gaussian,Residual frame,Quantization (physics),Quantization (signal processing),Compressed sensing,Mathematics
Journal
Volume
Issue
ISSN
3
1
2049-8764
Citations 
PageRank 
References 
16
0.67
15
Authors
3
Name
Order
Citations
PageRank
Felix Krahmer136927.16
Rayan Saab214914.56
Özgür Yilmaz368551.36