Results 51 to 60 of about 11,957,855 (289)
A systematic comparison of deep learning methods for EEG time series analysis
Frontiers in Neuroinformatics, 2023 Analyzing time series data like EEG or MEG is challenging due to noisy, high-dimensional, and patient-specific signals. Deep learning methods have been demonstrated to be superior in analyzing time series data compared to shallow learning methods which ...
Dominik Walther +4 more
doaj +1 more source
Computing the fast Fourier transform on SIMD microprocessors [PDF]
, 2012 This thesis describes how to compute the fast Fourier transform (FFT) of a power-of-two length signal on single-instruction, multiple-data (SIMD) microprocessors faster than or very close to the speed of state of the art libraries such as FFTW (“Fastest ...
Blake, Anthony Martin
core
Operando Tracking of Oxygen‐Vacancy Dynamics and Negative Capacitance in Ca‐Doped BiFeO3
Advanced Functional Materials, EarlyView.Operando electrochemical impedance spectroscopy, combined with electrocoloration, enables a direct correlation between real‐space ionic redistribution and the corresponding frequency‐domain electrical response. In lateral Ca‐doped BiFeO3 devices, time‐resolved impedance snapshots capture the evolution from bulk‐dominated mixed conduction to an ...
Jeonghun Suh +3 more
wiley +1 more source
IET Quantum CommunicationTransforms play a pivotal role in the study of signals and images. With the advent of quantum systems, analysing signals in the quantum domain is of particular interest. In this work, we aim to build a generalised transform circuit in the quantum domain.
Bidisha Dhara +2 more
doaj +1 more source
Quantifying rhythmicity in perceptual reports
NeuroImage, 2022 Several recent studies investigated the rhythmic nature of cognitive processes that lead to perception and behavioral report. These studies used different methods, and there has not yet been an agreement on a general standard.
Tommaso Tosato +3 more
doaj +1 more source
Random fractional Fourier transform : stochastic perturbations along the axis of propagation [PDF]
, 1999 The fractional Fourier transform (FRT) is known to be optically implementable with use of a medium with a perfect radial quadratic-index profile. Using the quantum-mechanical operator formalism, we examine the effects on the FRT action of such a medium
Abe, Sumiyoshi, Sheridan, John T.
core +1 more source
Advanced Functional Materials, EarlyView.A single‐step laser annealing strategy is presented for dual‐gate a‐IGZO TFTs. The steep thermal gradient induces graded oxygen doping in the channel and simultaneous WOx removal at the contacts, enabling concurrent interface and contact engineering.
Sihyeon Kwon +9 more
wiley +1 more source
Implementación en Sistemas Embebidos de la Transformada Discreta de Hartley
TecnoLógicas, 2010 Orthogonal transformations have been very useful in the characterization and signal processing. In particular Hartley Transform allows for time-frequency representations and vice versa.
Juan S. Botero-Valencia +1 more
doaj
Testing of a Polarimetric Current Sensor in the Frequency Domain
Sensors, 2021 This paper proposes an original model of a polarimetric current sensor, in which the measuring coil was made of a single mode telecommunication optical fiber ITU-T G.652, G.653, G.655, and G.657. This sensor was subjected to the commercialization process,
Sławomir Andrzej Torbus +1 more
doaj +1 more source
Discrete Fourier transform associated with generalized Schur polynomials
Proceedings of the American Mathematical Society, 2018 We prove the Plancherel formula for a four-parameter family of discrete Fourier transforms and their multivariate generalizations stemming from corresponding generalized Schur polynomials. For special choices of the parameters, this recovers the sixteen classic discrete sine- and cosine transforms DST-1,...,DST-8 and DCT-1,...,DCT-8, as well as ...
J. F. van Diejen, E. Emsiz
openaire +3 more sources