Results 21 to 30 of about 153,573 (265)

Statistical Analysis and Machine Learning Prediction of Fog-Caused Low-Visibility Events at A-8 Motor-Road in Spain

open access: yesAtmosphere, 2021
This work presents a full statistical analysis and accurate prediction of low-visibility events due to fog, at the A-8 motor-road in Mondoñedo (Galicia, Spain).
Sara Cornejo-Bueno   +7 more
doaj   +1 more source

Quantitative Evaluation for Magnetoelectric Sensor Systems in Biomagnetic Diagnostics

open access: yesSensors, 2022
Dedicated research is currently being conducted on novel thin film magnetoelectric (ME) sensor concepts for medical applications. These concepts enable a contactless magnetic signal acquisition in the presence of large interference fields such as the ...
Eric Elzenheimer   +9 more
doaj   +1 more source

Algebraic Signal Processing Theory

open access: yes, 2006
This paper presents an algebraic theory of linear signal processing. At the core of algebraic signal processing is the concept of a linear signal model defined as a triple (A, M, phi), where familiar concepts like the filter space and the signal space are cast as an algebra A and a module M, respectively, and phi generalizes the concept of the z ...
Püschel, Markus, Moura, José M. F.
openaire   +2 more sources

Automatic Localization of an Ultrasound Probe with the Help of Magnetic Sensors

open access: yesCurrent Directions in Biomedical Engineering, 2022
Ultrasound measurements are a widely used instrument in clinical practice. For later traceability of the images, the position (and orientation) of the ultrasound probe must be recorded during the measurement. Until now this has to be done manually by the
Bald Christin   +2 more
doaj   +1 more source

MV-GPRNet: Multi-View Subsurface Defect Detection Network for Airport Runway Inspection Based on GPR

open access: yesRemote Sensing, 2022
The detection and restoration of subsurface defects are essential for ensuring the structural reliability of airport runways. Subsurface inspections can be performed with the aid of a robot equipped with a Ground Penetrating Radar (GPR).
Nansha Li   +5 more
doaj   +1 more source

Orthogonality is superiority in piecewise-polynomial signal segmentation and denoising

open access: yesEURASIP Journal on Advances in Signal Processing, 2019
Segmentation and denoising of signals often rely on the polynomial model which assumes that every segment is a polynomial of a certain degree and that the segments are modeled independently of each other.
Michaela Novosadová   +2 more
doaj   +1 more source

Test-Time Adaptation for Speech Enhancement via Domain Invariant Embedding Transformation

open access: yesIEEE Open Journal of Signal Processing
Deep learning-based speech enhancement models achieve remarkable performance when test distributions match training conditions, but often degrade when deployed in unpredictable real-world environments with domain shifts.
Tobias Raichle, Niels Edinger, Bin Yang
doaj   +1 more source

Regular perturbation on the group-velocity dispersion parameter for nonlinear fibre-optical communications

open access: yesNature Communications, 2020
Nonlinear effects have been studied in optical fiber communications channels under various specified parameter regimes. Here, the authors develop an approximate model via perturbation that is more accurate for the highly nonlinear regime.
Vinícius Oliari   +2 more
doaj   +1 more source

Optimization of array geometry for direction-of-arrival estimation using a priori information [PDF]

open access: yesAdvances in Radio Science, 2010
This paper focuses on the estimation of the direction-of-arrival (DOA) of signals impinging on a sensor array. A novel method of array geometry optimization is presented that improves the DOA estimation performance compared to the standard uniform linear
O. Lange, B. Yang
doaj   +1 more source

Sickle Cell Disease Is an Inherent Risk for Asthma in a Sibling Comparison Study

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Introduction Sickle cell disease (SCD) and asthma share a complex relationship. Although estimates vary, asthma prevalence in children with SCD is believed to be comparable to or higher than the general population. Determining whether SCD confers an increased risk for asthma remains challenging due to overlapping symptoms and the ...
Suhei C. Zuleta De Bernardis   +9 more
wiley   +1 more source

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