On signals compression by EMD

Kais Khaldi (1) , Abdelouahab Boudraa (1)

1 IRENAV - Institut de Recherche de l'Ecole Navale

In this letter a new signals coding framework based on the Empirical Mode Decomposition (EMD) is introduced. The EMD breaks down any signal into a reduced number of oscillating components called Intrinsic Modes Decomposition (IMFs). Based on IMF properties, different coding strategies are presented. No assumptions concerning the linearity or the stationarity are made about the signal to be coded. Results obtained on ECG signals are presented and compared to those of wavelets coding.

Mots clés: Signals coding; empirical mode decomposition; instantaneous frequency; instantaneous phase; instantaneous amplitude; AR model; biomedical signals; ECG; Codage des signaux; Décomposition modale empirique; phase instantanée; fréquence instantanée; amplitude instantanée; modèle AR; signaux biomédicaux

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

Kais Khaldi, Abdelouahab Boudraa. On signals compression by EMD. Electronics Letters, 2012, 21 (1329-1331), pp.48. ⟨10.1049/el.2012.0737⟩. ⟨hal-01081608⟩