Results 21 to 30 of about 5,089 (226)

SPECTRAL ESTIMATION OF TIME SERIES

open access: yesСовременная наука и инновации, 2022
As a result of spectral analysis, namely, the fast Fourier transform (FFT) method, the wavelet transform method, the Hilbert-Huang transform method, certain periods of the time series representing the monthly average values of the sunspot numbers were ...
L. N. Dzhimbeeva   +5 more
doaj   +1 more source

Crack detection in beams using Hilbert-Huang transform [PDF]

open access: yesمجله مدل سازی در مهندسی, 2018
This study presents a non-destructive method for detecting location and depth of crack in beams. The method utilizes Hilbert-Huang Transform (HHT) as a time-series analysis technique.
Mohammad Reza Galeban, Shapour Moradi
doaj   +1 more source

Representation Learning for EEG-Based Biometrics Using Hilbert–Huang Transform

open access: yesComputers, 2022
A promising approach to overcome the various shortcomings of password systems is the use of biometric authentication, in particular the use of electroencephalogram (EEG) data.
Mikhail Svetlakov   +4 more
doaj   +1 more source

THE USE OF THE HILBERT HUANG TRANSFORMATION IN THE TESTING OF RAILWAY STRUCTURES [PDF]

open access: yesAkustika, 2021
The aim of the paper is to introduce a less used method for the evaluation of non-stationary and especially transient phenomena in railway structures to the wider professional public. This method may find wide application in many technical and other fields. It is the so-called Hilbert-Huang transform.
Smutný, Jaroslav   +2 more
openaire   +2 more sources

Data Mining Applied to the Electrochemical Noise Technique in the Time/Frequency Domain for Stress Corrosion Cracking Recognition

open access: yesCorrosion and Materials Degradation, 2023
In this paper, time/frequency domain data processing was proposed to analyse the EN signal recorded during stress corrosion cracking on precipitation-hardening martensitic stainless steel in a chloride environment.
Luigi Calabrese   +2 more
doaj   +1 more source

Power-Line Partial Discharge Recognition with Hilbert–Huang Transform Features

open access: yesEnergies, 2022
Partial discharge (PD) has caused considerable challenges to the safety and stability of high voltage equipment. Therefore, highly accurate and effective PD detection has become the focus of research.
Yulu Wang, Hsiao-dong Chiang, Na Dong
doaj   +1 more source

Analyse des signaux multicomposante à modulation de fréquence linéaire par la transformation de Teager-Huang-Hough [PDF]

open access: yes, 2014
A novel detection approach of linear FM (LFM) signals, with single or multiple components, in the time-frequency plane of Teager-Huang (TH) transform is presented.
BOUDRAA, Abdelouahab   +4 more
core   +1 more source

Phase controlled integrated interferometric single-sideband filter based on planar Bragg gratings implementing photonic Hilbert transform [PDF]

open access: yes, 2013
The first monolithically integrated all-optical single-sideband filter based on photonic Hilbert transform and planar Bragg gratings is proposed and experimentally demonstrated.
Smith, P.G.R.   +6 more
core   +1 more source

A Comparative Study of Time-Frequency Representations for Fault Detection in Wind Turbine [PDF]

open access: yes, 2011
To reduce the cost of wind energy, minimization and prediction of maintenance operations in wind turbine is of key importance. In variable speed turbine generator, advanced signal processing tools are required to detect and diagnose the generator faults ...
CHARPENTIER, Jean-Frederic   +10 more
core   +1 more source

Decomposition of Multicomponent Micro-Doppler Signals Based on HHT-AMD

open access: yesApplied Sciences, 2018
Micro-Doppler signals analysis has been emerging as an important topic in target identification, and relative research has been focusing on features extraction and separation of the radar signals.
Wenchao Li, Gangyao Kuang, Boli Xiong
doaj   +1 more source

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