Results 21 to 30 of about 2,881,469 (278)

Multivariate Variational Mode Decomposition [PDF]

IEEE Transactions on Signal Processing, 2019
In this paper, a generic extension of variational mode decomposition (VMD) algorithm for multivariate or multichannel data sets is presented. We first define a model for multivariate modulated oscillations that is based on the presence of a joint or common frequency component among all channels of input data.
Naveed ur Rehman, Hania Aftab
openaire   +3 more sources

Variational mode decomposition based random forest model for solar radiation forecasting: New emerging machine learning technology

, 2021
Forecasting of solar radiation (Radn) can provide an insight vision for the amount of green and friendly energy sources. Owing to the non-linearity and non-stationarity challenges caused by meteorological variables in forecasting Radn, a variational mode
Yaseen, Zaher Mundher, Zong, Tianrui, Prasad, Ramendra, Ali, Mumtaz, Xiang, Yong, Khan, Mohsin, Farooque, Aitazaz Ahsan   +6 more
core   +1 more source

Variational mode decomposition: mode determination method for rotating machinery diagnosis [PDF]

, 2018
Variational mode decomposition (VMD) is a modern decomposition method used for many engineering monitoring and diagnosis recently, which replaced traditional empirical mode decomposition (EMD) method.
Isham, Muhd. Firdaus, Ahmad, Zair Asrar, Leong, Muhammad Salman, Lim, Meng Hee   +3 more
core   +3 more sources

Mutual Interference Mitigation of Millimeter-Wave Radar Based on Variational Mode Decomposition and Signal Reconstruction

, 2023
As an important remote sensing technology, millimeter-wave radar is used for environmental sensing in many fields due to its advantages of all-day, all-weather operation.
Bo Feng, Yanbing Li, Weichuan Zhang, Feng, Bo, Zhang, Weichuan, Li, Yanbing   +5 more
core   +1 more source

Adaptive Complex Variational Mode Decomposition for Micro-Motion Signal Processing Applications

Sensors, 2021
In order to suppress the strong clutter component and separate the effective fretting component from narrow-band radar echo, a method based on complex variational mode decomposition (CVMD) is proposed in this paper.
Saiqiang Xia, Jun Yang, Wanyong Cai, Chaowei Zhang, Liangfa Hua, Zibo Zhou   +5 more
doaj   +1 more source

Composite fault diagnosis of gearbox based on empirical mode decomposition and improved variational mode decomposition

Journal of Low Frequency Noise, Vibration and Active Control, 2021
In order to identify the nonlinear nonstationary pitting-wear fault signal of gears in gearbox, a new method of composite fault diagnosis for gearbox is proposed, which combines empirical mode decomposition with improved variational mode decomposition ...
Jingyue Wang, Jiangang Li, Haotian Wang, Lixin Guo   +3 more
doaj   +1 more source

Analyse des modes empiriques : une approche EDP [PDF]

, 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.
DIOP, El Hadji, ALEXANDRE, Radjesvarane, BOUDRAA, Abdel-Ouahab   +2 more
core   +1 more source

Fault diagnosis of rolling bearings based on variational mode decomposition and calculus enhanced energy operator

工程科学学报, 2016
Aiming at the characteristics of rolling bearing fault vibration signals and considering the merits of variational mode decomposition in mono-component separation and calculus enhanced energy operator in transient impulse detection, this article ...
ZHANG Dong, FENG Zhi-peng
doaj   +1 more source

Air gap eccentric analysis and fault detection of traction motor

Journal of Engineering and Applied Science, 2023
To solve the problem of air gap eccentric fault of traction motor, the fault characteristic frequency is close to the fundamental frequency, and the decomposed frequency affects each other, which is easy to cause spectrum aliasing.
Jintian Yin, Zhilong He, Li Liu, Zhihua Peng   +3 more
doaj   +1 more source

Tatouage audio par EMD [PDF]

, 2013
In this paper a new adaptive audio watermarking algorithm based on Empirical Mode Decomposition (EMD) is introduced. The audio signal is divided into frames and each one is decomposed adaptively, by EMD, into intrinsic oscillatory components called ...
KHALDI, Kais, BOUDRAA, Abdel-Ouahab
core   +1 more source