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Communication Dans Un Congrès Année : 2013

Sparse modal estimation of 2-D NMR signals

Résumé

We propose a sparse modal estimation approach for analyzing 2-D NMR signals. It consists in decomposing the 2-D problem into two 1-D modal estimations. Each 1-D problem is formulated in terms of simultaneous sparse approximation which is efficiently solved using the Simultaneous Orthogonal Matching Pursuit method associated with a multi-grid dictionary refinement. Then, we propose a new criterion for mode pairing which comes down to solve a sparse approximation problem involving a low dimensional dictionary. The effectiveness of the method is demonstrated on real NMR data.
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Dates et versions

hal-00838252 , version 1 (25-06-2013)

Identifiants

  • HAL Id : hal-00838252 , version 1

Citer

Souleymen Sahnoun, El-Hadi Djermoune, David Brie. Sparse modal estimation of 2-D NMR signals. 38th International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2013, May 2013, Vancouver, Canada. pp.8751-8755. ⟨hal-00838252⟩
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