TIME-DELAY PROPERTIES OF A STOCHASTIC-RESONANCE INFORMATION TRANSMISSION LINE

Autor: A. Fendrik, R. P. J. Perazzo, Diego F. Grosz, S.A. Ibáñez, Pablo Ignacio Fierens
Rok vydání: 2008
Předmět:
Zdroj: Fluctuation and Noise Letters. :L315-L321
ISSN: 1793-6780
0219-4775
DOI: 10.1142/s0219477508005082
Popis: In this paper we analyze the properties of a chain of forward-coupled bi-stable over-damped oscillators. It is well known that this system displays stochastic resonance and behaves as a transmission line when an adequate amount of noise is added to each oscillator, and the first oscillator is driven by a periodic (sine) modulating signal. By driving the first oscillator with a modulated sequence of random non-return-to-zero (NRZ) bits, we start by showing that the system exhibits a stochastic-resonance behavior. Then we show that bit delays can be adjusted by either changing the amount of noise and/or the coupling intensity between adjacent oscillators. We find that the system can be regarded as a tunable delay line for a broad range of noise and coupling parameters, a feature that may find applications in information processing and bit regeneration.
Databáze: OpenAIRE