Stochastic resonance: another way to retrieve subthreshold digital data

Saverio Morfu (1, 2) , Jc Comte (1)

1 Le2i - Laboratoire Electronique, Informatique et Image [UMR6306]
2 LUAN - Laboratoire Universitaire d'Astrophysique de Nice

A new type of electronic receiver based on stochastic resonance properties is proposed to retrieve subthreshold modulated (or not) digital signals. In order to check the receiver performances, we investigated different kinds of modulations. Considering both uniform and Gaussian white noise, a total restoration of the emitted data is achieved for an unmodulated or amplitude modulated (AM) signals, while an almost total restoration is reached using a frequency shift keying (FSK) modulation. These experimental results confirm the great interest of stochastic resonance in the signal transmission field.

Mots clés: nonlinear dynamics; stochastic resonance

Domaines: Systèmes désordonnés et réseaux de neurones [cond-mat.dis-nn]; Formation de Structures et Solitons [nlin.PS]; Analyse de données, Statistiques et Probabilités [physics.data-an]; Electronique; Traitement du signal et de l'image [eess.SP]; Traitement du signal et de l'image [eess.SP]

Saverio Morfu, Jc Comte. Stochastic resonance: another way to retrieve subthreshold digital data. Physics Letters A, 2003, 309 (1-2), pp.39-43. ⟨10.1016/S0375-9601(03)00166-X⟩. ⟨hal-00651528⟩