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Thursday, July 16, 2020 | History

6 edition of Stochastic Resonance and Noise-Assisted Signal Transfer found in the catalog.

Stochastic Resonance and Noise-Assisted Signal Transfer

On Coupling-Effects Of Stochastic Resonators and Spectral Optimization Of Fluctuations In Random ... from the Faculty of Science & Technology)

by Peter Hammerstein

  • 245 Want to read
  • 33 Currently reading

Published by Uppsala Universitet .
Written in English

    Subjects:
  • Physics,
  • Science,
  • Science/Mathematics

  • The Physical Object
    FormatPaperback
    Number of Pages106
    ID Numbers
    Open LibraryOL12854592M
    ISBN 109155459684
    ISBN 109789155459680
    OCLC/WorldCa56334116

    With regard to sensory perception, an inverted U-shaped function between signal and noise is typically considered as the signature of stochastic resonance (SR) 4,5,6,://   This cooperative effect between a weak signal and noise in a nonlinear system, leading to an enhanced response to the periodic force, is termed stochastic resonance (SR). The term 'SR' first appeared in [ 2 ] in , where it was proposed as a plausible mechanism for almost periodic occurrences (approximately every years) of ice ages

      The possibility of utilizing the phenomenon of stochastic resonance in bistable or multi-stable nonlinear dynamical systems to implement memory and logic function has been studied. We demonstrate how ubiquitous ambient noise enables a bistable system to behave as a memory device, as well as a logic gate for sub−threshold input  › Books › Science & Math › Physics. Short Retraction Notice The paper is withdrawn from "Journal of Intelligent Learning Systems and Applications" due to data errors in this paper which has been confirmed by EIC of this journal. This article has been retracted to straighten the academic record. In making this decision the Editorial Board follows COPE's Retraction ://?PaperID=

    The auditory system has traditionally been considered to be limited by noise 1,2,, in the form of random collisions of air molecules against the eardrum or of Brownian motion of cochlear   Noise assisted image processing by ensembles of R-SETs. International Journal of Parallel, Emergent and Distributed Systems , 32 (3), DOI: / Kenji Yoshida, Kazuhiko Hirakawa. Stochastic resonance in bistable atomic ://


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Stochastic Resonance and Noise-Assisted Signal Transfer by Peter Hammerstein Download PDF EPUB FB2

Stochastic resonance (SR) is an interesting phenomenon of noise-assisted signal transmission or signal processing through certain nonlinear systems. This paper discusses SR in nonlinear multiple signal detection for four representative noises based on a maximum a posterior probability (MAP) ://   Unlike the traditional signal detection methods that eliminate or suppress noise, stochastic resonance (SR) can amplify the output response of the signal by transferring noise energy to the signal.

SR has been widely used in weak signal detection due to its noise-assisted advantage. Stochastic Resonance and Noise-Assisted Signal Transfer: On Coupling Effects of Stochastic Resonators and Spectral Optimization of Fluctuations in Random Network Switches Hammerstein, Peter Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Technology, Department of ?pid=diva Stochastic resonance is a nonlinear effect wherein the noise turns out to be beneficial to the transmission or detection of an information-carrying signal.

This paradoxical effect has now been reported in a large variety of nonlinear systems, including electronic circuits, optical devices, material-physics phenomena, neuronal systems, chemical 「Stochastic resonance and noise-assisted signal transfer: on coupling-effects of stochastic resonators and spectral optimization of fluctuations in random network switches」を図書館から検索。カーリルは複数の図書館からまとめて蔵書検索ができるサービスです。 Adding random noise to a weak periodic signal can enhance the flow of information through certain nonlinear physical systems, via a process known as stochastic resonance (SR).

We have used crayfish mechanoreceptor cells to investigate the possibility that SR can be induced in Stochastic resonance and noise-assisted signal transfer: on coupling-effects of stochastic resonators and spectral optimization of fluctuations in random network switches Peter S.

Hammerstein (Acta Universitatis Upsaliensis. Uppsala dissertations from the Faculty of Science and Technology ; 55) Uppsala Universitet,   Stochastic Resonators (SRTs) (see ref.4,5,7) are one of the most intensively studied topic concerning noise assisted signal transfer.

The particularity of these systems is that the signal power and signal-to-noise-ratio (SNR) at the output expresses well de ned maxima versus the input noise strength. Classical SRTs are threshold based ~noise/research_files/   Noise can enhance a system’s internal coherence [stochastic resonance, (SR)] or damage it [stochastic anti-resonance, (SAR)].

Both effects are resonantly sensible to the system parameters that allow naming both phenomena as a resonance with taking into account a principal difference between the linear and nonlinear systems far from an By contrast, this paper is concerned with a nonlinear filtering process known as Stochastic Resonance (SR), research on which has been supported by the Physics Division of the Office of Naval Research (ONR) for several years and more recently by the Cognitive and Neural Sciences Division of the :// Logical Stochastic Resonance: Noise assisted memory and logic gates.

T his book is based on the work that I did when I was a doctoral candidate at. So the output signal-to-noise ratio   Such behaviors are related to stochastic resonance effects in signal estimation, shown here feasible for the first time with unital quantum noises.

The results provide enhanced appreciation of quantum noise or decoherence, manifesting that it is not always detrimental for   Stochastic resonance (SR) is a noise assisted signal propagation phenomenon which has recently attracted much attention due to its relevance in biology and sensing [1–19].

A stochastic resonator (STR) is a special nonlinear system (Fig. 1), which requires an optimal intensity of noise to be added to the input signal for the best signal   The stochastic resonance (SR) is the phenomenon which can emerge in nonlinear dynamic systems.

In general, it is related with a bistable nonlinear system of Duffing type under additive excitation combining deterministic periodic force and Gaussian white noise.

It manifests as a stable quasiperiodic interwell hopping between both stable states with a small random ://   The proposed method applies the stochastic resonance to each polarized component. The experiments show that the proposed spectrum sensing method is suitable for generalized likelihood ratio test in additional white Gussion noise and lower signal to noise ratio, rather than polarized channel matrix and idealistic likelihood ratio :// Adding random noise to a weak periodic signal can enhance the flow of information through certain nonlinear physical systems, via a process known as stochastic resonance (SR).

We have used crayfish mechanoreceptor cells to investigate the possibility that SR can be induced in neurophysiological systems. Various signal-to-noise ratio (SNR) measurements were derived from the action potentials Stochastic resonance (SR) is a tendency of some nonlinear systems to exhibit more favorable signal response with the addition of an optimal amount of noise to the signal [5].

In the context of the Intuitive-phenomenological model of immune-recognition has been elaborated based on the Stochastic Resonance (SR) – noise assysted signal detection of weak signals – phenomenon.

Nonself-peptide is considered as the weak signal to be amplified, and the self-peptide is considered as an athermal noise boosting detection of ://   Abstract. A simple, paradigmatic, model is used to illustrate some general properties of effects subsumed under the label stochastic resonance.

In particular, analyses of the transparent model show that (1) a small amount of noise added to a much larger signal can greatly increase the response to the signal, but (2) a weak signal added to much larger noise will not generate a substantial added   Stochastic resonance (SR), the enhancement of informa-tion transfer through systems exhibiting nonlinearity by the addition of an optimal level of noise to the system in the presence of a small signal, is ubiquitous in nonliving and living systems [1–3].

In particular, this physical concept has greatly impacted neuroscience research because. Stochastic resonance is said to be observed when increases in levels of unpredictable fluctuations—e.g., random noise—cause an increase in a metric of the quality of signal transmission or detection performance, rather than a decrease.

This counterintuitive effect relies on system nonlinearities and on some parameter ranges being “suboptimal”. Stochastic resonance has been observed ?id=/  () Parallel Array Bistable Stochastic Resonance System with Independent Input and Its Signal-to-Noise Ratio Improvement.

Mathematical Problems in Engineering() Stochastic resonance aided robust techniques for segmentation of medical ultrasound ://The aim of this study was to demonstrate the occurrence of stochastic resonance (SR) in spinal and cortical potentials elicited by periodic tactile stimuli in the anaesthetised cat.

The periodic tactile stimuli were applied on the central pad of the hindpaw and the noisy tactile stimuli on the glabrous skin of the third hindpaw ://