Results 201 to 210 of about 98,906 (246)

Hilbert-Huang Transform Associated with the Linear Canonical Transform

2011 First International Conference on Instrumentation, Measurement, Computer, Communication and Control, 2011
In recent years, the Hilbert - Huang transform and the linear canonical transform draw extensive attention in signal processing community, especially in Radar, optical signal processing and so on. This paper investigates the Hilbert - Huang transform associated with the linear canonical transform and the algorithm for the non-stationary signal ...
Tao Wang, Rong Duan, Chao Wei
openaire   +1 more source

A Hilbert–Huang transform approach for predicting cyber-attacks

Journal of the Korean Statistical Society, 2008
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Kim, Donghoh, Paek, Seung-Hyun, Oh, Hee-Seok   +2 more
openaire   +1 more source

Electromagnetic Shielding Analysis Using Hilbert-Huang Transform

In this study, the Hilbert-Huang Transform (HHT) and other frequency analysis methods, Short-Time Fourier Transform (STFT) and Continuous Wavelet Transform (CWT), are employed to numerically analyze electromagnetic phenomena with strong non-linearity. In the numerical experiments, electromagnetic wave propagation simulations using the Finite-Difference
Kobari, Yuya, Shimada, Yuki, Dong, Ran, Ikuno, Soichiro   +3 more
openaire   +1 more source

Speech pitch determination based on Hilbert-Huang transform

Signal Processing, 2006
Pitch determination is an essential part of speech recognition and speech processing. In this paper, a new pitch determination method based on Hilbert-Huang Transform (HHT) is presented. The assumption of linearity of the speech-production process and short-time stationarity of speech signals, which is generally employed in recent studies on speech ...
Hai Huang, Jiaqiang Pan
openaire   +1 more source

Defining an estuary using the Hilbert-Huang transform

Hydrological Sciences Journal, 2013
Abstract Researchers have used various physical, chemical, or topographic features to define estuaries, based on the needs of their particular subject. The principal features of estuaries are the tides that influence their water stages; thus, the boundaries of an estuary can be determined based on whether the water stage is subject to tidal influence ...
Yen-Chang Chen, Su-Pai Kao, Hsiao-Wen Chiang   +2 more
openaire   +1 more source

Safety Evaluation and Application of Blasting Vibration Based on an Improved Hilbert–Huang Transform

Rock Mechanics and Rock Engineering, 2023
Hailong Wang, Yan Zhao, R. Shan, Yonghui Wei, Dong Liu, J. Dong   +5 more
semanticscholar   +1 more source

Short-termflickerseverity indexcalculation using Hilbert-Huang Transform

2011
This article proposes an approach to calculate the short term flicker magnitude (Pst) using Hilbert-Huang Transform (HHT). HHT is an approach which is commonly used in the analysis of nonlinear and nonstationary signals. Since flicker corresponds to a variation of the envelope of a sinusoidal voltage waveform, the utilization of HHT is reasonable.
Önal, Yasemin, Gerek, Ömer Nezih, Ece, Doǧan Gökhan   +2 more
openaire   +1 more source

Wavelet and Hilbert-Huang transform used in cardiology

Proceedings of the 2014 6th International Conference on Electronics, Computers and Artificial Intelligence (ECAI), 2014
A pacemaker is a small electronic device implanted under the skin near the collarbone. Pacemakers monitor the heart's electrical activity. If the heart is beating too slowly or pausing too long between beats, the pacemaker will provide electrical impulses that stimulate the heart to beat.
Milan Stork, Vlastimil Vancura
openaire   +1 more source

Forecasting stock market for an efficient portfolio by combining XGBoost and Hilbert-Huang​ transform

Engineering applications of artificial intelligence, 2023
Arsalan Dezhkam, M. T. Manzuri
semanticscholar   +1 more source

Rotor-Stator Partial Rub Diagnosis Using Hilbert Huang Transform

2015
Rotor–stator rubbing is occasional problem faced by rotating machines especially during startups and shut downs when passing through their critical speeds. The rubbing often occurs in rotating machinery at position with small clearances and can sometimes cause catastrophic breakdown of machine.
Braut, Sanjin, Skoblar, Ante, Žigulić, Roberto, Štimac Rončević, Goranka   +3 more
openaire   +2 more sources