Results 51 to 60 of about 1,088,206 (196)

Estimation of information parameters of the signal on background of additive and multiplicative noise with arbitrary distribution

Физика волновых процессов и радиотехнические системы, 2018
The issues of quasi-optimal signal processing in conditions of simultaneous effect of additive and multiplicative non-Gaussian noise are considered. The resulting expression describing the effect on the value of the normalized a posteriori errors of ...
V.M. Artyushenko, V.I. Volovach
doaj  

Reduction of Multiplicative Noise in Radar Images

Известия высших учебных заведений России: Радиоэлектроника, 2021
Introduction. A radar image is an image obtained by remote sensing the earth's surface with a radar device. Radar images are characterized by background graininess caused by speckle noise, which should be filtered to improve the quality of radar images ...
A. A. Tuzova, V. A. Pavlov, A. A. Belov
doaj   +1 more source

Stabilizing role of multiplicative noise in nonconfining potentials

Physical Review Research
We provide a simple framework for the study of parametric (multiplicative) noise, making use of scale parameters. We focus on a large class of one-dimensional stochastic differential equations in which the deterministic drift pushes trajectories toward ...
Ewan T. Phillips, Benjamin Lindner, Holger Kantz   +2 more
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Exact solutions for the system of stochastic equations for the ion sound and Langmuir waves

Results in Physics, 2021
We consider the system of stochastic equations of the ion sound and Langmuir waves with multiplicative noise in the Itô sense. To get new exact stochastic solutions, we apply three distinct methods such as: He’s semi-inverse method, the Riccati–Bernoulli
Wael W. Mohammed, Raed Qahiti, Hijaz Ahmad, Jamel Baili, Fatma Elahraa Mansour, M. El-Morshedy   +5 more
doaj   +1 more source

Optical soliton solutions of the stochastic resonant nonlinear Schrödinger equation with spatio temporal and inter-modal dispersion under generalized Kudryashov's law non-linearity

Ain Shams Engineering Journal
This article investigates optical soliton solutions within the stochastic resonant nonlinear Schrödinger equation (SRNLSE). This equation incorporates both spatio-temporal dispersion (STD) and inter-modal dispersion (IMD), along with multiplicative white
Nafissa T. Trouba, Mohamed E.M. Alngar, Haitham A. Mahmoud, Reham M.A. Shohib   +3 more
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Multiplicative Lévy noise in bistable systems [PDF]

The European Physical Journal B, 2012
Stochastic motion in a bistable, periodically modulated potential is discussed. The system is stimulated by a white noise increments of which have a symmetric stable Lévy distribution. The noise is multiplicative: its intensity depends on the process variable like |x|^{-θ}.
openaire   +2 more sources

Modification to an Auxiliary Function Method for Solving Space-Fractional Stochastic Regularized Long-Wave Equation

Fractal and Fractional
This study aims to explore the effect of spatial-fractional derivatives and the multiplicative standard Wiener process on the solutions of the stochastic fractional regularized long-wave equation (SFRLWE) and contribute to its analysis.
Muneerah Al Nuwairan, Adel Elmandouh
doaj   +1 more source

The impact of standard Wiener process on the optical solutions of the stochastic nonlinear Kodama equation using two different methods

Journal of Low Frequency Noise, Vibration and Active Control
The stochastic nonlinear Kodama (SNLK) equation forced in the Stratonovich sense by multiplicative noise is considered here. New elliptic, hyperbolic, trigonometric, and rational stochastic solutions are acquired using ( G ′/ G )-expansion method and ...
Mohamed S. Algolam, Athar I. Ahmed, Hijyah M. Alshammary, Fatma E. Mansour, Wael W. Mohammed   +4 more
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Multiplicative noise, fast convolution and pricing [PDF]

Quantitative Finance, 2012
In this work we detail the application of a fast convolution algorithm computing high dimensional integrals to the context of multiplicative noise stochastic processes. The algorithm provides a numerical solution to the problem of characterizing conditional probability density functions at arbitrary time, and we applied it successfully to quadratic and
BORMETTI, GIACOMO, Cazzaniga, Sofia
openaire   +3 more sources

New strategies for low noise, agile PLL frequency synthesis [PDF]

, 2009
Phase-Locked Loop based frequency synthesis is an essential technique employed in wireless communication systems for local oscillator generation.
Wang, H.
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