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Advanced Search Results For "SIGNAL-to-noise ratio"

1 - 10 of 64,583 results for
 "SIGNAL-to-noise ratio"
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Modulation Recognition of Communication Signals Based on Multimodal Feature Fusion.

Publication Type:Academic Journal

Source(s):Sensors (Basel, Switzerland) [Sensors (Basel)] 2022 Aug 30; Vol. 22 (17). Date of Electronic Publication: 2022 Aug 30.

Abstract:Modulation recognition is the indispensable part of signal interception analysis, which has always been the research hotspot in the field of radio communication. With the increasing complexity of the electromagnetic spectrum environment, interference i...

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Meta-learning-enabled accurate OSNR monitoring of directly detected QAM signals with one-shot training.

Publication Type:Academic Journal

Source(s):Optics letters [Opt Lett] 2022 May 01; Vol. 47 (9), pp. 2218-2221.

Abstract:We experimentally demonstrate meta-learning-enabled accurate optical signal-to-noise ratio (OSNR) monitoring of directly detected 16QAM signals with extremely few training data. When one-shot training, where one amplitude histogram (AH) for each OSNR v...

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Focal fMRI signal enhancement with implantable inductively coupled detectors.

Publication Type:Academic Journal

Source(s):NeuroImage [Neuroimage] 2022 Feb 15; Vol. 247, pp. 118793. Date of Electronic Publication: 2021 Dec 08.

Abstract:Despite extensive efforts to increase the signal-to-noise ratio (SNR) of fMRI images for brain-wide mapping, technical advances of focal brain signal enhancement are lacking, in particular, for animal brain imaging. Emerging studies have combined fMRI ...

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3 T: the good, the bad and the ugly.

Publication Type:Academic Journal

Source(s):The British journal of radiology [Br J Radiol] 2022 Feb 01; Vol. 95 (1130), pp. 20210708. Date of Electronic Publication: 2021 Nov 10.

Abstract:It is around 20 years since the first commercial 3 T MRI systems became available. The theoretical promise of twice the signal-to-noise ratio of a 1.5 T system together with a greater sensitivity to magnetic susceptibility-related contrast mechanisms, ...

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It's noisy out there! A review of denoising techniques in cryo-electron tomography.

Publication Type:Academic Journal

Source(s):Journal of structural biology [J Struct Biol] 2021 Dec; Vol. 213 (4), pp. 107804. Date of Electronic Publication: 2021 Oct 31.

Abstract:Cryo-electron tomography is the only technique that can provide sub-nanometer resolved images of cell regions or even whole cells, without the need of labeling or staining methods. Technological advances over the past decade in electron microscope stab...

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Seeing is Sensing - External Observation of In Vivo Biological Gradient Field by Tracking Nanoswimmers.

Publication Type:Academic Journal

Source(s):Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference [Annu Int Conf IEEE Eng Med Biol Soc] 2021 Nov; Vol. 2021, pp. 1205-1208.

Abstract:This work aims to demonstrate through computational analysis that, by monitoring the trajectory of externally manipulable nanoswimmers (NS), the in vivo biological gradient field (BGF) interacting with the NS can be indirectly observed. This observabil...

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Reinforcing neuron extraction and spike inference in calcium imaging using deep self-supervised denoising.

Publication Type:Academic Journal

Source(s):Nature methods [Nat Methods] 2021 Nov; Vol. 18 (11), pp. 1395-1400. Date of Electronic Publication: 2021 Aug 16.

Abstract:Calcium imaging has transformed neuroscience research by providing a methodology for monitoring the activity of neural circuits with single-cell resolution. However, calcium imaging is inherently susceptible to detection noise, especially when imaging ...

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Removing independent noise in systems neuroscience data using DeepInterpolation.

Publication Type:Academic Journal

Source(s):Nature methods [Nat Methods] 2021 Nov; Vol. 18 (11), pp. 1401-1408. Date of Electronic Publication: 2021 Oct 14.

Abstract:Progress in many scientific disciplines is hindered by the presence of independent noise. Technologies for measuring neural activity (calcium imaging, extracellular electrophysiology and functional magnetic resonance imaging (fMRI)) operate in domains ...

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Resolution-enhanced OCT and expanded framework of information capacity and resolution in coherent imaging.

Publication Type:Academic Journal

Source(s):Scientific reports [Sci Rep] 2021 Oct 15; Vol. 11 (1), pp. 20541. Date of Electronic Publication: 2021 Oct 15.

Abstract:Spatial resolution in conventional optical microscopy has traditionally been treated as a fixed parameter of the optical system. Here, we present an approach to enhance transverse resolution in beam-scanned optical coherence tomography (OCT) beyond its...

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Interactive Multimedia Data Coscattering Point Imaging for Low Signal-to-Noise Ratio 3D Seismic Data Processing.

Publication Type:Academic Journal

Source(s):Wireless Communications & Mobile Computing. 8/4/2022, p1-12. 12p.

Abstract:In this paper, low signal-to-noise ratio 3D seismic data are processed by the method of coscattered point imaging, and the imaging method is analyzed in combination with interactive multimedia for 3D seismic data. The reconstruction is carried out usin...

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