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Noise-enhanced heterodyning in bistable systems.

Dykman, M. I. and Golubev, G. P. and Luchinsky, D. G. and McClintock, Peter V. E. and Stein, N. D. and Stocks, N. G. (1994) Noise-enhanced heterodyning in bistable systems. Physical Review E, 49 (3). pp. 1935-1942. ISSN 1539-3755

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Abstract

A new form of heterodyning is reported in which a heterodyne signal at the difference frequency between an input signal and a reference signal can be enhanced by adding noise. The underlying mechanism is closely related to that of stochastic resonance. The dependences of the heterodyne signal and the signal-to-noise ratio on the amplitudes and frequencies of the input and reference signals have been investigated. Noise-induced enhancement of the heterodyning has been demonstrated both for white noise and for high-frequency noise (with the power spectrum centered at the frequency of the reference signal) added at the input.

Item Type: Article
Journal or Publication Title: Physical Review E
Subjects: Q Science > QC Physics
Departments: Faculty of Science and Technology > Engineering
Faculty of Science and Technology > Physics
ID Code: 32127
Deposited By: Professor P. V. E. McClintock
Deposited On: 09 Mar 2010 13:30
Refereed?: Yes
Published?: Published
Last Modified: 26 Jul 2012 17:05
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/32127

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