Results 1 to 10 of about 1,355,826 (333)

Remote Sensing Low Signal-to-Noise-Ratio Target Detection Enhancement [PDF]

open access: goldSensors, 2023
In real-time remote sensing application, frames of data are continuously flowing into the processing system. The capability of detecting objects of interest and tracking them as they move is crucial to many critical surveillance and monitoring missions ...
Tian J. Ma, Robert J. Anderson
doaj   +4 more sources

Adaptive Signal-to-Noise Ratio Indicator for Wearable Bioimpedance Monitoring [PDF]

open access: yesSensors, 2023
Bioimpedance monitoring is an increasingly important non-invasive technique for assessing physiological parameters such as body composition, hydration levels, heart rate, and breathing.
Didzis Lapsa   +2 more
doaj   +2 more sources

High Signal-to-Noise Ratio MEMS Noise Listener for Ship Noise Detection

open access: yesRemote Sensing, 2023
Ship noise observation is of great significance to marine environment research and national defense security. Acoustic stealth technology makes a variety of ship noise significantly reduced, which is a new challenge for marine noise monitoring.
Shan Zhu   +8 more
doaj   +1 more source

Reconfigurable Intelligent Surface Optimal Placement in Millimeter-Wave Networks

open access: yesIEEE Open Journal of the Communications Society, 2021
This work discusses the optimal reconfigurable intelligent surface placement in highly-directional millimeter wave links. In particular, we present a novel system model that takes into account the relationship between the transmission beam footprint at ...
Konstantinos Ntontin   +5 more
doaj   +1 more source

On the definition of signal-to-noise ratio and contrast-to-noise ratio for FMRI data. [PDF]

open access: yesPLoS ONE, 2013
Signal-to-noise ratio, the ratio between signal and noise, is a quantity that has been well established for MRI data but is still subject of ongoing debate and confusion when it comes to fMRI data.
Marijke Welvaert, Yves Rosseel
doaj   +1 more source

Control of Healthcare-Associated Infections using Silver Nanoparticles in Radiology

open access: yesJournal of Medical Physics, 2022
Aims: The control of healthcare-associated infections (HCAIs) is a significant concern in the field of radiology due to multiple contact-transmitted pathogens on imaging devices.
Gyunheung Ahn, Sungchul Kim
doaj   +1 more source

Relationship between entropy and SNR changes in image enhancement

open access: yesEURASIP Journal on Image and Video Processing, 2017
There are many techniques of image enhancement. Their parameters are traditionally tuned by maximization of SNR criterion, which is unfortunately based on the knowledge of an ideal image.
Zuzana Krbcova, Jaromir Kukal
doaj   +1 more source

Enhancing signal and signal-to-noise ratio with post-selection and nonclassical states

open access: yesResults in Physics, 2021
We propose a weak measurement scheme with post-selection based on the cross-Kerr interaction between two optical fields. We demonstrate that our scheme can measure smaller physical effects and obtain a larger signal-to-noise ratio compared to the weak ...
Meng-yao Guo   +3 more
doaj   +1 more source

Planilha de triagem acústica da sala de aula: tradução e adaptação cultural para o Português Brasileiro

open access: yesAudiology: Communication Research, 2017
RESUMO Introdução No ambiente escolar, os professores sentem-se incomodados em ministrar aulas em salas ruidosas e percebem a dificuldade dos alunos em ouvir a informação, constatando, assim, que o ruído não é apenas um incômodo, mas também um fator ...
Aline Duarte da Cruz   +7 more
doaj   +1 more source

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