Enhanced coding for exponentially distributed signals using suprathreshold stochastic resonance
Das, Aruneema, Stocks, Nigel G. and Hines, Evor, 1957-. (2009) Enhanced coding for exponentially distributed signals using suprathreshold stochastic resonance. Communications in Nonlinear Science and Numerical Simulation, Vol.14 (No.1). pp. 223-232. ISSN 1007-5704Full text not available from this repository.
Official URL: http://dx.doi.org/10.1016/j.cnsns.2007.07.013
Our previous work on stochastic resonance (SR) in threshold based systems proved that the SR effect is dependent oil the nature of the input signal distribution; more specifically, for certain types of signal distribution SR is not observed [Das A, Stocks NG, Nikitin A, Hines EL. Quantifying stochastic resonance in a single threshold detector for random aperiodic signals. Fluctuation Noise Lett 2004;4:L247-65]. Here we show that suprathreshold stochastic resonance (SSR) - a novel and distinct form of SR - removes this limitation and hence leads to the conclusion that SSR can probably enhance the transmission of signals of any distribution and amplitude. SSR effects are studied in a parallel array of identical nonlinear threshold based devices. A double exponential signal distribution is chosen because this distribution did not demonstrate conventional SR effects in a single threshold device [Das A, Stocks NG, Nikitin A., Hines EL. Quantifying Stochastic resonance in a single threshold detector for random aperiodic signals. Fluctuation and Noise Letters 2004;4:L247-L265.]. SSR as a possible mechanism for enhancing transmission of speech signals in the human ear is also discussed. (C) 2007 Elsevier B.V. All rights reserved.
|Item Type:||Journal Article|
|Subjects:||Q Science > QA Mathematics
T Technology > TJ Mechanical engineering and machinery
Q Science > QC Physics
|Divisions:||Faculty of Science > Engineering|
|Journal or Publication Title:||Communications in Nonlinear Science and Numerical Simulation|
|Publisher:||Elsevier Science BV|
|Number of Pages:||10|
|Page Range:||pp. 223-232|
|Access rights to Published version:||Restricted or Subscription Access|
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