Results 21 to 30 of about 87,116,953 (200)

Signal-to-noise ratio (SNR±SD dB), excess attenuation (EA±SD dB) and tail-to-signal ratio (TSR±SD dB) for combined male and female song phrases in the forest, shrubs and along the stream.

open access: yes, 2022
Signal-to-noise ratio (SNR±SD dB), excess attenuation (EA±SD dB) and tail-to-signal ratio (TSR±SD dB) for combined male and female song phrases in the forest, shrubs and along the stream.
Tomasz S. Osiejuk (10287277)   +3 more
core   +1 more source

iCap: New method for noise reduction in electroencephalography (EEG) signals

open access: yesمجلة جامعة دمشق للعلوم الهندسية, 2022
Electroencephalographic (EEG) signal’s importance increases as the neurotechnology research and industry accelerate. Therefore, it is crucial to acquire noise-free signals by maximising the signal-to-noise ratio (SNR). Many methods are followed to clean
Nibras ABO ALZAHAB Riham DAIEA Mhd Shafik ALNAHHAS
doaj  

Robust Automatic Modulation Classification in Low Signal to Noise Ratio

open access: yesIEEE Access, 2023
In a non-cooperative communication environment, automatic modulation classification (AMC) is an essential technology for analyzing signals and classifying different kinds of signal modulation before they are demodulated.
To Truong An, Byung Moo Lee
doaj   +1 more source

Artifact reduction in multichannel pervasive EEG using hybrid WPT-ICA and WPT-EMD signal decomposition techniques [PDF]

open access: yes, 2014
In order to reduce the muscle artifacts in multi-channel pervasive Electroencephalogram (EEG) signals, we here propose and compare two hybrid algorithms by combining the concept of wavelet packet transform (WPT), empirical mode decomposition (EMD) and ...
Koushik Maharatna   +7 more
core   +1 more source

The Application of Contrast-Enhanced 3D-STIR-VISTA MR Imaging of the Brachial Plexus

open access: yesJournal of the Belgian Society of Radiology, 2022
Objective: To introduce contrast-enhanced 3D-STIR-VISTA sequence that would improve the image quality for the brachial plexus imaging and enhance the contrast between the brachial plexus and surrounding tissues.
Dingsheng Han   +3 more
doaj   +1 more source

Pitch-scaled estimation of simultaneous voiced and turbulence-noise components in speech

open access: yes, 2001
Almost all speech contains simultaneous contributions from more than one acoustic source within the speaker's vocal tract. In this paper, we propose a method -- the pitch-scaled harmonic filter (PSHF) -- which aims to separate the voiced and turbulence ...
Shadle, Christine H.   +1 more
core   +2 more sources

Adaptive Signal-to-Noise Ratio Indicator for Wearable Bioimpedance Monitoring

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   +1 more source

Noise to Signal

open access: yes, 2023
With the introduction of information theory in the middle of the 20th century, the concept of noise came to be contrasted with signal. The exhibition Noise to Signal mainly consists of two projects that highlight the relative nature of these terms.
Sandqvist, Joakim,, Lund University.
core  

Attention-dependent modulation of cortical taste circuits revealed by granger causality with signal-dependent noise [PDF]

open access: yes, 2013
We show, for the first time, that in cortical areas, for example the insular, orbitofrontal, and lateral prefrontal cortex, there is signal-dependent noise in the fMRI blood-oxygen level dependent (BOLD) time series, with the variance of the noise ...
Luo, Qiang   +15 more
core   +1 more source

Signal to Noise Ratio of a Coded Slit Hyperspectral Sensor

open access: yesSignals, 2022
In recent years, a wide range of hyperspectral imaging systems using coded apertures have been proposed. Many implement compressive sensing to achieve faster acquisition of a hyperspectral data cube, but it is also potentially beneficial to use coded ...
Jonathan Piper   +2 more
doaj   +1 more source

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