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Stochastic resonance (SR) is a phenomenon in which a signal that is normally too weak to be detected by a sensor can be boosted by adding white noise to the signal, which contains a wide spectrum of frequencies. The frequencies in the white noise corresponding to the original signal's frequencies will resonate with each other, amplifying the original signal while not amplifying the rest of the white noise – thereby increasing the signal-to-noise ratio, which makes the original signal more prominent. Further, the added white noise can be enough to be detectable by the sensor, which can then filter it out to effectively detect the original, previously undetectable signal.
This phenomenon of boosting undetectable signals by resonating with added white noise extends to many other systems – whether electromagnetic, physical or biological – and is an active area of research.[1]
Stochastic resonance was first proposed by the Italian physicists Roberto Benzi, Alfonso Sutera and Angelo Vulpiani in 1981,[2] and the first application they proposed (together with Giorgio Parisi) was in the context of climate dynamics.[3][4]
^Moss F, Ward LM, Sannita WG (February 2004). "Stochastic resonance and sensory information processing: a tutorial and review of application". Clinical Neurophysiology. 115 (2): 267–81. doi:10.1016/j.clinph.2003.09.014. PMID 14744566. S2CID 4141064.
^Benzi, R; Sutera, A; Vulpiani, A (1 November 1981). "The mechanism of stochastic resonance". Journal of Physics A: Mathematical and General. 14 (11): L453–L457. Bibcode:1981JPhA...14L.453B. doi:10.1088/0305-4470/14/11/006. ISSN 0305-4470. S2CID 123005407.
Stochasticresonance (SR) is a phenomenon in which a signal that is normally too weak to be detected by a sensor can be boosted by adding white noise to...
previously used for statistical sampling. Stochasticresonance: In biological systems, introducing stochastic "noise" has been found to help improve the...
introduced, together with other Italian physicists, the concept of stochasticresonance in the study of climate change. Giorgio Parisi is a foreign member...
oscillations of the climate system. In particular, the mechanism of the stochasticresonance was originally proposed in order to describe this interaction. Jung-Eun...
have a random aspect and a cyclical aspect. This behavior is dubbed stochasticresonance. Half of the 2021 Nobel prize on physics was awarded for this work...
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(disambiguation) Color quantization Jitter Stick-slip phenomenon Stippling Stochasticresonance Spot wobble …[O]ne of the earliest [applications] of dither came...
arousal. When using sound to help brain function, also known as stochasticresonance, it was found that significantly more noise is required to improve...
The effects of tRNS may also be explained in the context of the stochasticresonance phenomenon. tRNS is, by definition, a stimulation that induces non-finalized...
A., Rahmstorf, S. (2002). "Abrupt glacial climate changes due to stochasticresonance". Phys. Rev. Lett. 88 (3): 038501. Bibcode:2002PhRvL..88c8501G. doi:10...
to analyze relaxation kinetics, non-equilibrium thermodynamics, stochasticresonance, as well as climate change. In bistable spatially extended systems...
mechanical and electrical domains, exist. This include chaos theory, stochasticresonance and many other nonlinear or vibrational phenomena. No new energy...
working primarily on non-linear dynamics. His works primarily concern stochasticresonance, spontaneous synchronization of coupled oscillators, and non-linear...
Russell DF; Wilkens LA; Moss F (November 1999). "Use of behavioural stochasticresonance by paddle fish for feeding". Nature. 402 (6759): 291–4. Bibcode:1999Natur...
systems to maximize the thermal resolution of the technique via the stochasticresonance effect." Nicholas Poniatowski University of Maryland, College Park...
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