Results 21 to 30 of about 162,409 (257)

Frame Theory for Signal Processing in Psychoacoustics [PDF]

open access: yes, 2017
This review chapter aims to strengthen the link between frame theory and signal processing tasks in psychoacoustics. On the one side, the basic concepts of frame theory are presented and some proofs are provided to explain those concepts in some detail. The goal is to reveal to hearing scientists how this mathematical theory could be relevant for their
Péter Balázs   +3 more
openaire   +2 more sources

Extending Fibre Nonlinear Interference Power Modelling to Account for General Dual-Polarisation 4D Modulation Formats

open access: yesEntropy, 2020
In optical communications, four-dimensional (4D) modulation formats encode information onto the quadrature components of two arbitrary orthogonal states of polarisation of the optical field.
Gabriele Liga   +3 more
doaj   +1 more source

Functional Brain Imaging Synthesis Based on Image Decomposition and Kernel Modeling: Application to Neurodegenerative Diseases

open access: yesFrontiers in Neuroinformatics, 2017
The rise of neuroimaging in research and clinical practice, together with the development of new machine learning techniques has strongly encouraged the Computer Aided Diagnosis (CAD) of different diseases and disorders.
Francisco J. Martinez-Murcia   +6 more
doaj   +1 more source

Achievable Information Rates for Probabilistic Amplitude Shaping: An Alternative Approach via Random Sign-Coding Arguments

open access: yesEntropy, 2020
Probabilistic amplitude shaping (PAS) is a coded modulation strategy in which constellation shaping and channel coding are combined. PAS has attracted considerable attention in both wireless and optical communications. Achievable information rates (AIRs)
Yunus Can Gültekin   +2 more
doaj   +1 more source

Probabilistic Shaping for Finite Blocklengths: Distribution Matching and Sphere Shaping

open access: yesEntropy, 2020
In this paper, we provide a systematic comparison of distribution matching (DM) and sphere shaping (SpSh) algorithms for short blocklength probabilistic amplitude shaping. For asymptotically large blocklengths, constant composition distribution matching (
Yunus Can Gültekin   +3 more
doaj   +1 more source

Data Augmentation for Speaker Identification under Stress Conditions to Combat Gender-Based Violence

open access: yesApplied Sciences, 2019
A Speaker Identification system for a personalized wearable device to combat gender-based violence is presented in this paper. Speaker recognition systems exhibit a decrease in performance when the user is under emotional or stress conditions, thus the ...
Esther Rituerto-González   +3 more
doaj   +1 more source

A Concept for Myocardial Current Density Estimation with Magnetoelectric Sensors

open access: yesCurrent Directions in Biomedical Engineering, 2023
In this paper we present a novel noninvasive approach to estimate current densities in the heart from magnetocardiography. The proposed algorithm uses nested optimization to model current densities in equally-sized voxels of myocardial tissue.
Engelhardt Erik   +6 more
doaj   +1 more source

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

Game Theory for Signal Processing in Networks

open access: yesCoRR, 2015
44 pages, 14 figures, To appear in IEEE Signal Processing ...
Giacomo Bacci   +3 more
openaire   +2 more sources

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

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