Tracking of spectral lines in an ARCAP time-frequency representation

Manuel Davy , Benoit Leprettre , Christian Doncarli (1) , Nadine Martin (2)

1 IRCCyN - Institut de Recherche en Communications et en Cybernétique de Nantes
2 LIS - Laboratoire des images et des signaux

ARCAP time-frequency representation of narrow-band signals are madde of instantaneous characteristics (frequencies and amplitudes), without any time li,ks. In order to extract the frequency modulations (or spectral trajectoeries), we propose to re-create them on the basis of ballistic integrator models. The analytic expression of the corresponding asymptotic Kalman filter gains allows a very simple implementation of asociation procedures including trajectory birth or death. The points being associated, a Fraser filtering leads to the smoothed spectral trajectories.

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

Manuel Davy, Benoit Leprettre, Christian Doncarli, Nadine Martin. Tracking of spectral lines in an ARCAP time-frequency representation. EUSIPCO, Sep 1998, Rhodes, Greece. ⟨hal-01137457⟩