Results 31 to 40 of about 17,389 (226)

Application of Hilbert-Huang transform in the analysis of satellite-communication signals

Revista Iberoamericana de Automática e Informática Industrial RIAI, 2020
In communication links between satellites and ground stations, the transmitted signal is exposed to disturbances such as noise of different types that hinder reception or retrieval of information.
J. Villanueva, M. Bueno, J. Simón, M. Molinas, J. Flores, P. E. Méndez   +5 more
doaj   +1 more source

IRIS RECOGNITION BASED ON HILBERT–HUANG TRANSFORM

Advances in Adaptive Data Analysis, 2009
As a reliable approach for human identification, iris recognition has received increasing attention in recent years. This paper proposes a new analysis method for iris recognition based on Hilbert–Huang transform (HHT). We first divide a normalized iris image into several subregions.
Zhijing Yang, Zhihua Yang, Lihua Yang
openaire   +2 more sources

Spectral Analysis of Time Series of Permanent GPS Station Positions Using HHT [PDF]

فصلنامه علوم و فناوری فضایی, 2011
In this paper, Hilbert Huang transform (HHT) for time series analysis of the status of permanent GPS stations can be provided. Hilbert Huang transform and its, related spectrun is a new method for the analysis of nonlinear processes.This method ...
F. Nobakht-Orsi, M. A. Sharifi, A. R. Safari   +2 more
doaj  

Drilling-vibration response characteristics of rocks based on Hilbert–Huang transform

Journal of Petroleum Exploration and Production Technology, 2023
Currently, there are no in-situ methods to quantify drilling-vibration response characteristics of different lithologies. Here, we quantified the vibration responses of four lithologies (limestone, sandstone, coal, and mudstone) using a combination of ...
Xinxin Fang, Hong Feng, Yunhong Wang, Xiao Liu, Xiaoyu Liu, Sihui Xu, Yanqiu Wang, Xiaowei Ni   +7 more
doaj   +1 more source

THE APPLICATION OF HILBERT–HUANG TRANSFORMS TO METEOROLOGICAL DATASETS [PDF]

Journal of Atmospheric and Oceanic Technology, 2004
Recently a new spectral technique as been developed for the analysis of aperiodic and nonlinear signals - the Hilbert-Huang transform. This paper shows how these transforms can be used to discover synoptic and climatic features: For sea level data, the transforms capture the oceanic tides as well as large, aperiodic river outflows. In the case of solar
openaire   +1 more source

Application of the Hilbert-Huang transform to the search for gravitational waves [PDF]

Physical Review D, 2007
We present the application of a novel method of time-series analysis, the Hilbert-Huang Transform, to the search for gravitational waves. This algorithm is adaptive and does not impose a basis set on the data, and thus the time-frequency decomposition it provides is not limited by time-frequency uncertainty spreading. Because of its high time-frequency
Camp, Jordan B., Cannizzo, John K., Numata, Kenji   +2 more
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Gear Fault Detection Based on Teager-Huang Transform

International Journal of Rotating Machinery, 2010
Gear fault detection based on Empirical Mode Decomposition (EMD) and Teager Kaiser Energy Operator (TKEO) technique is presented. This novel method is named as Teager-Huang transform (THT).
Hui Li, Haiqi Zheng, Liwei Tang
doaj   +1 more source

Hilbert-Huang Transform analysis. [PDF]

, 2014
(A) Illustration of a typical single trial of instantaneous frequency in the alpha range and its amplitude derived from the Hilbert-Huang transform of a recorded LFP on the interval −1 to +2 s from stimulus onset.
Rick L. Jenison (137001)
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Hilbert–Huang Transform Analysis of Quasiperiodic Oscillations in MAXI J1820+070

The Astrophysical Journal, 2023
We present a time-frequency analysis, based on the Hilbert–Huang transform, of the evolution of the low-frequency quasiperiodic oscillations observed in the black hole X-ray binary MAXI J1820+070.
Wei Yu, Qing-Cui Bu, Zi-Xu Yang, He-Xin Liu, Liang Zhang, Yue Huang, Deng-Ke Zhou, Jin-Lu Qu, Shuang-Nan Zhang, Shu Zhang, Li-Ming Song, Shu-Mei Jia, Xiang Ma, Lian Tao, Ming-Yu Ge, Qing-Zhong Liu, Jing-Zhi Yan   +16 more
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An Application to Transient Current Signal based Induction Motor Fault Diagnosis of Fourier-Bessel Expansion and Simplified Fuzzy ARTMAP [PDF]

, 2013
The start-up transient signals have been widely used for fault diagnosis of induction motor because they can reveal early defects in the development process, which are not easily detected with the signals in the steady state operation. However, transient
Ball, Andrew, Tran, Van Tung, Choi, Byeong Keun, Al Thobiani, Faisal, AlThobiani, Faisal   +4 more
core   +1 more source