A comparative study of subspace-based methods for 2-D nuclear magnetic resonance spectroscopy signals

Souleymen Sahnoun (1) , El-Hadi Djermoune (1) , David Brie (1)

1 CRAN - Centre de Recherche en Automatique de Nancy

One of the major challenges is using subspace-based approaches for the determination of the parameters of one- or multidimensional signals is their practical applicability on real data containing \emph{damped} exponentials. In this paper, we present a comparison survey of low complexity subspace-based methods and we focus on 2-D nuclear magnetic resonance (NMR) spectroscopy application. We first present free search 2-D estimation approaches for damped sinusoids and we analyze their performances using simulated signals. Then, we present the results obtained on real 2-D NMR data.

Mots clés: Two-dimensional NMR; parameter estimation; high-resolution; damped sinusoids.; damped sinusoids

Domaines: Traitement du signal et de l'image [eess.SP]; Traitement du signal et de l'image [eess.SP]

Souleymen Sahnoun, El-Hadi Djermoune, David Brie. A comparative study of subspace-based methods for 2-D nuclear magnetic resonance spectroscopy signals. 2010. ⟨hal-00627648v2⟩