Results 11 to 20 of about 329,555 (323)

Mapping the GPS multipath environment using the signal‐to‐noise ratio (SNR) [PDF]

open access: yesRadio Science, 2007
GPS multipath, where a signal arrives by more than one path, is a source of positioning error which cannot be easily neutralized. Better understanding of the multipath environment, i.e., the direction of and distance to reflecting objects, is important for multipath mitigation during the site construction phase as well as discerning the impact of ...
Andria Bilich, Kristine M. Larson
openaire   +2 more sources

Quantification of Signal-to-Noise Ratio in Cerebral Cortex Recordings Using Flexible MEAs With Co-localized Platinum Black, Carbon Nanotubes, and Gold Electrodes

open access: yesFrontiers in Neuroscience, 2018
Developing new standardized tools to characterize brain recording devices is critical to evaluate neural probes and for translation to clinical use. The signal-to-noise ratio (SNR) measurement is the gold standard for quantifying the performance of brain
Alex Suarez-Perez   +13 more
doaj   +2 more sources

Feeble-light ghost imaging via correlation calculation

open access: yesResults in Physics, 2023
Noise is a significant factor affecting imaging quality because it seriously reduces the detection signal-to-noise ratio (SNR), especially in feeble-light detection. In this paper, we propose a practical method to separate signal from noise background in
Wei Tan   +8 more
doaj   +1 more source

Signal-to-Noise Ratio of Brillouin Grating Measurement with Micrometer-Resolution Optical Low Coherence Reflectometry

open access: yesSensors, 2020
Signal-dependent speckle-like noise was the dominant noise in a Brillouin grating measurement with micrometer-resolution optical low coherence reflectometry (OLCR).
Kazumasa Takada   +2 more
doaj   +1 more source

Signal-To-Noise Ratio: A Robust Distance Metric for Deep Metric Learning [PDF]

open access: yesComputer Vision and Pattern Recognition, 2019
Deep metric learning, which learns discriminative features to process image clustering and retrieval tasks, has attracted extensive attention in recent years.
Tongtong Yuan   +4 more
semanticscholar   +1 more source

Evaluating effectiveness of dynamic soundfield system in the classroom

open access: yesNoise and Health, 2016
Research has reported on the use of soundfield amplification devices in the classroom. However, no study has used standardized tests to determine the potential advantages of the dynamic soundfield system for normally hearing students and for the teacher ...
Aline Duarte da Cruz   +5 more
doaj   +1 more source

Low Frequency Noise Characterization and Signal-to-Noise Ratio Optimization for Silicon Hall Cross Sensors

open access: yesIEEE Journal of the Electron Devices Society, 2015
In this paper, silicon-based Hall cross sensors with different device dimensions and carrier densities are designed and fabricated. Low frequency noise behavior regarding to the device dimension and carrier density of the Hall cross sensors has been ...
Dongli Zhang, Mingxiang Wang, Kai Sun
doaj   +1 more source

Overview of Signal Processing Problems in Power Electronic Control Circuits

open access: yesEnergies, 2023
This paper examines various aspects related to digital signal processing in digital control circuits used in power electronics. The discussion focuses on several common issues, including the sampling rate of signals (including phenomena such as aliasing ...
Krzysztof Sozański
doaj   +1 more source

Effect of the Output of the System in Signal Detection [PDF]

open access: yes, 1997
We analyze the consequences that the choice of the output of the system has in the efficiency of signal detection. It is shown that the signal and the signal-to-noise ratio (SNR), used to characterize the phenomenon of stochastic resonance, strongly ...
A. Grzegorczyk   +11 more
core   +4 more sources

Low intensity white noise improves performance in auditory working memory task: An fMRI study

open access: yesHeliyon, 2019
Research suggests that white noise may facilitate auditory working memory performance via stochastic resonance. Stochastic resonance is quantified by plotting cognitive performance as a function of noise intensity.
Elza Othman   +8 more
doaj   +1 more source

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