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Projection-based atom selection in orthogonal matching pursuit for compressive sensing

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4 Author(s)
Chatterjee, S. ; Sch. of Electr. Eng. & the ACCESS Linnaeus Centre, KTH - R. Inst. of Technol., Stockholm, Sweden ; Hari, K.V.S. ; Handel, P. ; Skoglund, M.

For compressive sensing, we endeavor to improve the atom selection strategy of the existing orthogonal matching pursuit (OMP) algorithm. To achieve a better estimate of the underlying support set progressively through iterations, we use a least squares solution based atom selection method. From a set of promising atoms, the choice of an atom is performed through a new method that uses orthogonal projection along-with a standard matched filter. Through experimental evaluations, the effect of projection based atom selection strategy is shown to provide a significant improvement for the support set recovery performance, in turn, the compressive sensing recovery.

Published in:

Communications (NCC), 2012 National Conference on

Date of Conference:

3-5 Feb. 2012