123 citations · 398 across the 47 of their papers we have counts for
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cs.IT2012
Joint Sparsity with Different Measurement Matrices
Reinhard Heckel, Helmut Bölcskei
We consider a generalization of the multiple measurement vector (MMV) problem, where the measurement matrices are allowed to differ across measurements. This problem arises natural…
cs.IT2012★ 1 cited
Identification of Sparse Linear Operators
Reinhard Heckel, Helmut Bölcskei
We consider the problem of identifying a linear deterministic operator from its response to a given probing signal. For a large class of linear operators, we show that stable ident…
cs.IT2012★ 11 cited
Sparse Signal Separation in Redundant Dictionaries
Céline Aubel, Christoph Studer, Graeme Pope +1
We formulate a unified framework for the separation of signals that are sparse in "morphologically" different redundant dictionaries. This formulation incorporates the so-called "a…