Results 1 to 10 of about 7,858,197 (288)

Accelerated random noise suppression of seismic data using compressed singular-value decomposition

open access: yes矿业科学学报
Random noise is one of the common background noises in seismic data, and its attenuation will directly affect the signal-to-noise ratio of seismic data, which is of great significance to improve the quality of seismic data.
SUN Chao   +4 more
doaj   +1 more source

Altering brain dynamics with transcranial random noise stimulation

open access: yesScientific Reports, 2017
Random noise can enhance the detectability of weak signals in nonlinear systems, a phenomenon known as stochastic resonance (SR). This concept is not only applicable to single threshold systems but can also be applied to dynamical systems with multiple ...
Onno van der Groen   +2 more
semanticscholar   +1 more source

Relative growth of the partial sums of certain random Fibonacci-like sequences

open access: yes, 2017
We consider certain Fibonacci-like sequences $(X_n)_{n\geq 0}$ perturbed with a random noise. Our main result is that $\frac{1}{X_n}\sum_{k=0}^{n-1}X_k$ converges in distribution, as $n$ goes to infinity, to a random variable $W$ with Pareto-like ...
Roitershtein, Alexander, Zhou, Zhirou
core   +1 more source

Synchronization by noise for order-preserving random dynamical systems

open access: yes, 2016
We provide sufficient conditions for weak synchronization by noise for order-preserving random dynamical systems on Polish spaces. That is, under these conditions we prove the existence of a weak point attractor consisting of a single random point.
Flandoli, Franco   +2 more
core   +1 more source

Seismic Random Noise Attenuation Using DARE U-Net

open access: yesRemote Sensing
Seismic data processing plays a pivotal role in extracting valuable subsurface information for various geophysical applications. However, seismic records often suffer from inherent random noise, which obscures meaningful geological features and reduces ...
Tara P. Banjade   +6 more
doaj   +1 more source

Linear SPDEs with harmonizable noise [PDF]

open access: yes, 2011
Using tools from the theory of random fields with stationary increments, we introduce a new class of processes which can be used as a model for the noise perturbing an SPDE.
Balan, Raluca M.
core  

Automatic Identification and Suppression of Random Noise and Methods for Profile Splicing in the Sub-Bottom Profile of Deep Water

open access: yesJournal of Marine Science and Engineering
The complex topography of deep sea presents numerous challenges for the accurate exploration of sub-bottom profiles. These include real-time tracking of seafloor reflectors, acquisition and storage of deep-sea long-term reflection data, and splicing of ...
Xia Feng, Weifeng Ding
doaj   +1 more source

Dual-Mean Extraction Method of Dynamic Spectrum for Suppressing Random Noise and Coarse Error

open access: yesIEEE Access, 2019
Dynamic spectrum (DS) can greatly reduce the effects of individual differences and measurement environment by extracting the equivalent absorbance of pulsating arterial blood at multiple wavelengths.
Wei Tang   +5 more
doaj   +1 more source

Transcranial Random Noise Stimulation of Visual Cortex: Stochastic Resonance Enhances Central Mechanisms of Perception

open access: yesJournal of Neuroscience, 2016
Random noise enhances the detectability of weak signals in nonlinear systems, a phenomenon known as stochastic resonance (SR). Though counterintuitive at first, SR has been demonstrated in a variety of naturally occurring processes, including human ...
Onno van der Groen, N. Wenderoth
semanticscholar   +1 more source

Ambient awareness: From random noise to digital closeness in online social networks

open access: yesComputers in Human Behavior, 2016
Ambient awareness refers to the awareness social media users develop of their online network in result of being constantly exposed to social information, such as microblogging updates.
Ana Levordashka, S. Utz
semanticscholar   +1 more source

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