Results 21 to 30 of about 2,019,128 (293)

A Study on Distortion Estimation Based on Image Gradients

open access: yesSensors, 2022
Image noise is a variation of uneven pixel values that occurs randomly. A good estimation of image noise parameters is crucial in image noise modeling, image denoising, and image quality assessment.
Sin Chee Chin   +3 more
doaj   +1 more source

The asymmetric resonant exchange qubit under the influence of electrical noise

open access: yes, 2015
We investigate the influence of electrical charge noise on a resonant exchange (RX) qubit in a triple quantum dot. This RX qubit is a variation of the exchange-only spin qubit which responds to a narrow-band resonant frequency.
Burkard, Guido, Russ, Maximilian
core   +1 more source

Simulations of noise-parameter uncertainties [PDF]

open access: yes2002 IEEE MTT-S International Microwave Symposium Digest (Cat. No.02CH37278), 2003
This paper reports results for uncertainties obtained from a Monte Carlo simulation of noise-parameter measurements. The simulator permits the computation of the dependence of the uncertainty in the noise parameters on uncertainties in the underlying quantities.
openaire   +1 more source

Improved estimation in a non-Gaussian parametric regression [PDF]

open access: yes, 2011
The paper considers the problem of estimating the parameters in a continuous time regression model with a non-Gaussian noise of pulse type. The noise is specified by the Ornstein-Uhlenbeck process driven by the mixture of a Brownian motion and a compound
Pchelintsev, Evgeny
core   +3 more sources

Parameter estimation of impulsive noise for channel coded communication systems

open access: yesIET Communications, 2021
In this paper, an impulsive noise estimation algorithm for generating bit log‐likelihood ratios (LLRs) for channel coded systems in impulsive noise environments is proposed. This approach is to design the LLR detector in the maximum‐likelihood (ML) sense,
Chun‐Yin Chen, Mao‐Ching Chiu
doaj   +1 more source

Reduction of Multiplicative Noise in Radar Images

open access: yesИзвестия 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

Non-Gaussian, non-dynamical stochastic resonance [PDF]

open access: yes, 2013
The archetypal system demonstrating stochastic resonance is nothing more than a threshold triggered device. It consists of a periodic modulated input and noise. Every time an output crosses the threshold the signal is recorded.
Dybiec, Bartlomiej   +1 more
core   +3 more sources

STUDY OF NOISE PROTECTION PROPERTIES OF MATERIALS AND CLOTHES PACKAGES

open access: yesАлматы технологиялық университетінің хабаршысы, 2021
The work is devoted to the study of the noise-protective ability of textile materials used for special clothing. An installation has been developed that allows measuring the noise level passing through the materials.
ZH. . Usenbekov   +3 more
doaj  

"PARAMETERS AFFECTING NOISE INDUCED HEARING LOSS IN INDUSTRY" [PDF]

open access: yesIranian Journal of Public Health, 1977
The paper is based on a study conducted in three different industries on 84.4 on their employees to determine the effect of over all noise intensity, length of employment and rest periods among them.
D. Parvizpour, P. Meshgi
doaj   +2 more sources

NOISE AND VIBRATION EFFECTS ON HUMAN ORGANISM, PRODUCED BY THE DEVELOPMENT ACTIVITIES OF THE PINOASA MINIER PERIMETER [PDF]

open access: yesFiabilitate şi Durabilitate, 2019
At present, noise pollution along with atmospheric pollution and waste management are serious problems faced by Europe's population. According to World Health Organization statistics, half of Europeans live in permanent noise and one third suffer from ...
Nicoleta-Maria MIHUT
doaj  

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