Results 61 to 70 of about 813 (142)

Fault Diagnosis of HTS–SLIM Based on 3D Finite Element Method and Hilbert–Huang Transform

IEEE Access, 2022
Ali Ahmadpour, Abdolmajid Dejamkhooy, Hossein Shayeghi   +2 more
openaire   +1 more source

TSFusion: Multi‐Grained Temporal‐Spatial Graph Learning for Stable Traffic Flow Forecasting

IET Communications, Volume 20, Issue 1, January/December 2026.
Research addresses the limitations of existing traffic flow forecasting methods, which struggle with global temporal–spatial patterns and overfitting on pre–defined geographical correlations, by proposing a novel multi–grained temporal–spatial graph learning framework.
Zhenan Lin, Yuni Lai, Wai Lun Lo, Tai‐Chiu Hsung, Harris Sik‐Ho Tsang, Xiaoyu Xue, Kai Zhou, Yulin Zhu   +7 more
wiley   +1 more source

Instantaneous Frequency Extraction Using the EMD-Based Wavelet Ridge to Reveal Geological Features

Frontiers in Earth Science, 2018
As one of the important seismic attributes, instantaneous frequency (IF) is widely used to reveal geological features. Compared to the normally IF extraction using Hilbert transform (HT), IF extraction using the wavelet ridge is demonstrated to have a ...
Ya-juan Xue, Jian Zhang, Qiang Chang, Li-ping Zhang, Feng Zou   +4 more
doaj   +1 more source

Analytical Frameworks and Theories of Electric Power in Non‐Linear Circuits

IET Generation, Transmission &Distribution, Volume 20, Issue 1, January/December 2026.
Based on the challenges of distorted currents and non‐linear components in modern power grids, this article reviews seminal electrical power theories that seek to generalize the traditional definitions of active, reactive, and apparent power. It provides a detailed analysis of their mathematical foundations, practical implementation, and validity.
Rafael Escudero, Luis Ibarra
wiley   +1 more source

Estimation of Electric Power Quantities for Nonsinusoidal Conditions Based on Operating Point Fluctuations

IET Generation, Transmission &Distribution, Volume 20, Issue 1, January/December 2026.
This paper proposes an operating point fluctuations (OPF) framework to describe nonsinusoidal, nonstationary waveforms by modeling distortions as amplitude and phase fluctuations of a time‐varying fundamental component. Based on OPF, single‐phase and three‐phase power quantity expressions consistent with IEEE Std. 1459–2025 are derived under stationary
Yang Li, Guobing Song, Yiming Ren, Yuxuan Zhang   +3 more
wiley   +1 more source

Performance comparison of Hilbert transform and frequency-domain analysis reconstruction methods in coherence scanning interferometry using simulated signals

JPhys Photonics
Coherence scanning interferometry (CSI) is widely used for high-precision surface topography measurement, where accurate height reconstruction from interferometric correlograms remains a key issue. The Hilbert transform (HT) and frequency domain analysis
Helia Hooshmand, Han Haitjema, Samanta Piano, Richard Leach   +3 more
doaj   +1 more source

Improving seismic signal classification of different ground activities with advanced AI and signal processing techniques

Discover Geoscience
This study presents a comparative framework for seismic signal classification based on adaptive decomposition and Hilbert spectral analysis. A self-recorded vibration dataset containing approximately 4,500 one-second segments of pedestrian, bicycle, and ...
Abdul Moiz, Mohsin Jadoon, Sohaib Ahmad, Arshad Iqbal, Muhammad Bilal Qureshi   +4 more
doaj   +1 more source

Optimal capacity configuration of hybrid energy storage for PV-storage system considering prediction errors and power fluctuations

Zhejiang dianli
A hybrid energy storage system （HESS） composed of batteries and supercapacitors can effectively mitigate the impact of photovoltaic （PV） output randomness and fluctuation on grid connection.
GUO Beiyuan, YIN Yanhe, RUAN Zhijie, ZHOU Gui, LIUJin, LU Xiaohai, RUAN Dabing   +6 more
doaj   +1 more source

Multi-feature Fusion and Damage Identification of Large Generator Stator Insulation Based on Lamb Wave Detection and SVM Method

Sensors, 2019
Due to the merits of Lamb wave to Structural Health Monitoring (SHM) of composite, the Lamb wave-based damage detection and identification technology show a potential solution for the insulation condition evaluation of large generator stator.
Ruihua Li, Haojie Gu, Bo Hu, Zhifeng She
doaj   +1 more source

An experimental residual envelope analysis-based method for incipient fault detection in induction machines

Scientific African
Induction motor (IM) is a vital element of any industrial manufacturing process due to its robust construction and simple maintainability. However, an incipient fault—even on a single rotor bar—can quickly become problematic and spread to adjacent bars ...
Hamza SABIR, Mohammed OUASSAID, Nabil NGOTE, Mohamed BENBOUZID   +3 more
doaj   +1 more source