Results 31 to 40 of about 177,717 (302)

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

Parametric dictionary learning for topological signal representation

open access: yes, 2023
The aim of this paper is to introduce a novel dictionary learning algorithm for sparse representation of signals defined over regular cell complexes. Leveraging tools from Hodge theory, we inject the underlying topology in the dictionary structure by ...
Di Lorenzo, Paolo   +2 more
core   +1 more source

Algebraic Signal Processing Theory

open access: yesCoRR, 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 ...
Markus Püschel, José M. F. Moura
openaire   +2 more sources

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

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

The Roles of Majorization and Generalized Triangular Decomposition in Communication and Signal Processing [PDF]

open access: yes, 2011
Signal processing is an art that deals with the representation, transformation, and manipulation of the signals and the information they contain based on their specific features.
Weng, Ching-Chih
core   +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

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

Adaptive digital signal processing Java teaching tool

open access: yes, 2001
This publication presents a JAVA program for teaching the rudiments of adaptive digital signal processing (DSP) algorithms and techniques. Adaptive DSP is on of the most important areas of signal processsing, and provides the core algorithmic means to ...
Harteneck, M., Stewart, R.W.
core   +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

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