Results 1 to 10 of about 215,660 (296)

Feature Extraction of Ship-Radiated Noise Based on Permutation Entropy of the Intrinsic Mode Function with the Highest Energy

open access: yesEntropy, 2016
In order to solve the problem of feature extraction of underwater acoustic signals in complex ocean environment, a new method for feature extraction from ship-radiated noise is presented based on empirical mode decomposition theory and permutation ...
Yu-Xing Li   +3 more
doaj   +4 more sources

Noise Reduction for Nonlinear Nonstationary Time Series Data using Averaging Intrinsic Mode Function

open access: yesAlgorithms, 2013
A novel noise filtering algorithm based on averaging Intrinsic Mode Function (aIMF), which is a derivation of Empirical Mode Decomposition (EMD), is proposed to remove white-Gaussian noise of foreign currency exchange rates that are nonlinear ...
Christofer Toumazou   +2 more
doaj   +4 more sources

Optimal Intrinsic Mode Function Based Detection of Motor Bearing Damages

open access: yesApplied Sciences, 2019
This paper proposes a model which uses the greedy algorithm to select the optimal intrinsic mode functions (IMFs) of the empirical mode decomposition (EMD), namely the greedy empirical mode decomposition (GEMD) model.
Chun-Yao Lee   +3 more
doaj   +4 more sources

Identification of Retinal Diseases Using Light Convolutional Neural Networks and Intrinsic Mode Function Technique [PDF]

open access: yesDiagnostics
Background/Objectives: Fundus imaging provides a detailed view of the interior surface of the eye and plays a crucial role in the early diagnosis of retinal diseases.
Preethi Kulkarni, Konda Srinivasa Reddy
doaj   +2 more sources

LAND COVER DYNAMIC CHANGE MODES ANALYSIS BASED ON EMPIRICAL MODE DECOMPOSITION [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2023
The dynamic change mode of land cover not only reflects the change characteristics of the land cover itself, but also reflects the influence exerted by external factors.
L. Tang   +4 more
doaj   +1 more source

Analysis of the Intrinsic Mode Functions [PDF]

open access: yesConstructive Approximation, 2004
The Empirical Mode Decomposition is a process for signals which produces Intrinsic Mode Functions from which instantaneous frequencies may be extracted by simple application of the Hilbert transform. The beauty of this method to generate redundant representations is in its simplicity and its effectiveness.
Veseelin Vatchev, Robert C. Sharpley
openaire   +2 more sources

Pairs Trading Based on Empirical Mode Decomposition (EMD) [PDF]

open access: yesIranian Journal of Finance, 2023
As a trading strategy, pairs trading is performed based on the arbitrage opportunities extracted from statistical models. It is an outcome of the distance between an asset pair and the equilibrium state.
Bahareh Zarintaj   +2 more
doaj   +1 more source

Research on Feature Extraction of Ship-Radiated Noise Based on Compressed Sensing and Center Frequency

open access: yesIEEE Access, 2021
In the field of underwater acoustic signal processing, the ship radiated noise contains a large amount of ship information, which is of great significance to the ship identification.
Zhufeng Lei   +5 more
doaj   +1 more source

Analysis of Intrinsic Mode Functions: A PDE Approach [PDF]

open access: yesIEEE Signal Processing Letters, 2010
The empirical mode decomposition is a powerful tool for signal processing. Because of its original algorithmic, recent works have contributed to its theoretical framework. Following these works, some mathematical contributions on its comprehension and formalism are provided.
El-Hadji Samba Diop   +2 more
openaire   +3 more sources

Time-Frequency Analysis of Noisy Vibration Signal Based on Improved Hilbert-Huang Transform

open access: yesShanghai Jiaotong Daxue xuebao, 2023
Aimed at the phenomenon of modal confusion and lack of practical significance of instantaneous frequency caused by Hilbert-Huang transform (HHT) noisy vibration signal time-frequency analysis, complete ensemble empirical mode decomposition with adaptive ...
SUN Miao, YANG Junkai, WU Li
doaj   +1 more source

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