Results 31 to 40 of about 288,603 (325)

Generalized Discrete Fourier Transform on the Base of Lagrange and Hermite Interpolation Formulas

open access: yesLobachevskii Journal of Mathematics, 2022
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Sitnik, S. M.   +2 more
openaire   +1 more source

Finite Impulse Response (FIR) Filters to Simulate Response of an Antenna [PDF]

open access: yes, 2006
In performance analysis of radar/communications systems using computer simulations or physical wave-front generator, it is often desired to include in the simulation the response of the antenna.
Sokol, Thomas
core   +1 more source

Applications of fractional lower order S transform time frequency filtering algorithm to machine fault diagnosis. [PDF]

open access: yesPLoS ONE, 2017
Stockwell transform(ST) time-frequency representation(ST-TFR) is a time frequency analysis method which combines short time Fourier transform with wavelet transform, and ST time frequency filtering(ST-TFF) method which takes advantage of time-frequency ...
Junbo Long   +5 more
doaj   +1 more source

Moving shape dynamics: A signal processing perspective [PDF]

open access: yes, 2008
This paper provides a new perspective on human motion analysis, namely regarding human motions in video as general discrete time signals. While this seems an intuitive idea, research on human motion analysis has attracted little attention from the signal
Christopher Leckie   +3 more
core   +1 more source

Beat-Notes Acquisition of Laser Heterodyne Interference Signal for Space Gravitational Wave Detection

open access: yesSensors, 2023
In space gravitational wave detection missions, the laser heterodyne interference signal (LHI signal) has a high-dynamic characteristic due to the Doppler shift.
Zhenpeng Wang   +3 more
doaj   +1 more source

Quantum Walks, Quantum Gates and Quantum Computers [PDF]

open access: yes, 2007
The physics of quantum walks on graphs is formulated in Hamiltonian language, both for simple quantum walks and for composite walks, where extra discrete degrees of freedom live at each node of the graph.
A. Ambainis   +11 more
core   +2 more sources

Optimized Nonuniform FFTs and Their Application to Array Factor Computation [PDF]

open access: yes, 2019
We deal with developing an optimized approach for implementing nonuniform fast Fourier transform (NUFFT) algorithms under a general and new perspective for 1-D transformations.
Capozzoli, Amedeo   +2 more
core   +1 more source

A Convolutional Neural Network Based Auto Features Extraction Method for Tea Classification with Electronic Tongue

open access: yesApplied Sciences, 2019
Feature extraction is a key part of the electronic tongue system. Almost all of the existing features extraction methods are “hand-crafted”, which are difficult in features selection and poor in stability. The lack of automatic, efficient and
Yuan hong Zhong   +7 more
doaj   +1 more source

Fully solvable finite simplex lattices with open boundaries in arbitrary dimensions

open access: yesPhysical Review Research, 2023
Finite simplex lattice models are used in different branches of science, e.g., in condensed-matter physics, when studying frustrated magnetic systems and non-Hermitian localization phenomena; or in chemistry, when describing experiments with mixtures. An
Ievgen I. Arkhipov   +4 more
doaj   +1 more source

Prediction of transonic 2D wing flutter using the time-spectral computational fluid dynamics

open access: yesJournal of Fluid Science and Technology, 2022
A new computation method to predict a transonic wing flutter under the limit-cycle oscillation (LCO) is developed using the time spectral (TS) method. The fluid and structural unknowns at a specified time interval in one cycle of the flutter are obtained
Koji MIYAJI, Hiroto TAKEGAWA
doaj   +1 more source

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