Research on an Adaptive Variational Mode Decomposition with Double Thresholds for Feature Extraction

Research on an Adaptive Variational Mode Decomposition with Double Thresholds for Feature Extraction

A motor bearing system is a nonlinear dynamics system with nonlinear support stiffness. It is an asymmetry system, which plays an extremely important role in rotating machinery. In this paper, a center frequency method of double thresholds is proposed to improve the variational mode decomposition (V...

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Bibliographic Details
Main Authors: Wu Deng, Hailong Liu, Shengjie Zhang, Haodong Liu, Huimin Zhao, Jinzhao Wu
Format: Article
Language:English
Published: MDPI AG 2018-12-01
Series:Symmetry
Subjects:
variational mode decomposition
signal analysis
time-frequency analysis
center frequency method of double thresholds
Hilbert transform
Online Access:https://www.mdpi.com/2073-8994/10/12/684

Internet

https://www.mdpi.com/2073-8994/10/12/684

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