Katsaggelos, “Recovery of correlated sparse signals from under-sampled measurements

In this paper we consider the problem of recovering tempo-rally smooth or correlated sparse signals from a set of under-sampled measurements. We propose two algorithmic solu-tions that exploit the signal temporal properties to improve the reconstruction accuracy. The effectiveness of the proposed al-gorithms is corroborated with experimental results. Index Terms — Sparse signal recovery, multiple measure-ment, greedy algorithm, convex relaxation method 1