Stochastic resonance detector for weak signals

Details Stochastic resonance detector for weak signals Stochastic resonance detector for weak signals

1997-08-25

1999-12-28

Ballato, Josie

Electricity: measuring and testing

Magnetic

Magnetometers

324633, 324619, 324652, G01R 2728

Patent

active

060086424

ABSTRACT:
A stochastic resonator signal detector comprises a multi-stable nonlinear device for coupling to an input signal and a control signal coupled to the multi-stable nonlinear device for varying asymmetry among stable states of the multi-stable nonlinear device. The interaction of the input signal with the control signal in the multi-stable nonlinear device generates an output signal having an amplitude responsive to the input signal amplitude and a frequency range that comprises harmonics of products of the control signal and the input signal.

REFERENCES:
"Stochastic Resonance in a Superconducting Loop With a Josephson Junction", J. Appl. Phys. 77 (6), Mar. 15, 1995, A. D. Hibbs and A. L. Singsaas.
"Flux Amplification Using Stochastic Superconducting Quantum Interference", Appl. Phys. Lett. 66 (1), Jan. 2, 1995, R. Rouse, Siyuan Han, and J.E. ens.
"Noise-Controlled Resonance Behavior in Nonlinear Dynamical Systems with Broken Symmetry", A. R. Bulsara and M.E. Inchiosa, Jan. 1996 American Physical Society.

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