Results 31 to 40 of about 7,212 (303)

A Novel Intelligent Fault Diagnosis Method Based on Variational Mode Decomposition and Ensemble Deep Belief Network

open access: yesIEEE Access, 2020
The deep belief network is widely used in fault diagnosis and health management of rotating machinery. However, on the one hand, deep belief networks only tend to focus on the global information of bearing vibration, ignoring local information.
Chao Zhang   +5 more
doaj   +1 more source

ROTOR FAULT FEATURE EXTRACTION METHOD USING MVMD AND IEDPE (MT)

open access: yesJixie qiangdu, 2023
To accurately characterize the different operating states of the rotor system, a modified variational mode decomposition(MVMD) combined with instantaneous energy distribution permutation entropy(IEDPE) is proposed to quantify and extract rotor fault ...
WU YaoChun   +6 more
doaj  

Multichannel Signal Denoising Using Multivariate Variational Mode Decomposition With Subspace Projection

open access: yesIEEE Access, 2020
This paper describes a novel multichannel signal denoising approach based on multivariate variational mode decomposition (MVMD). MVMD is the extended version of the variational mode decomposition (VMD) algorithm for multichannel data sets.
Peipei Cao, Huali Wang, Kaijie Zhou
doaj   +1 more source

Research on an Identification Method of Post Porcelain Insulator Damage Based on Variational Modal Algorithm

open access: yesZhejiang dianli, 2022
In view of the difficulty in signal identification in vibration acoustic detection of post porcelain insulators, A BP (backpropagation) neural network identification method based on variational mode decomposition (VMD) is proposed to identify the damage ...
LUO Hongjian   +3 more
doaj   +1 more source

Short-term traffic flow prediction: An ensemble machine learning approach

open access: yesAlexandria Engineering Journal, 2023
The inconvenience of travel, air pollution and consequent economic losses caused by traffic congestion have seriously restricted the healthy and sustainable development of cities in China.
Guowen Dai, Jinjun Tang, Wang Luo
doaj   +1 more source

A novel few-sample wind power prediction model based on generative adversarial network and quadratic mode decomposition

open access: yesFrontiers in Energy Research, 2023
With the emergence of various new power systems, accurate wind power prediction plays a critical role in their safety and stability. However, due to the historical wind power data with few samples, it is difficult to ensure the accuracy of power system ...
Hang He, Hang He, Manman Yuan
doaj   +1 more source

Radar fingerprint extraction via variational mode decomposition [PDF]

open access: yes2017 25th Signal Processing and Communications Applications Conference (SIU), 2017
In iMs paper, a novel method for extracting radar fingerprint using the unintentional modulation on radar signals is proposed. Proposed technique decomposes the unintentional modulations into its components using Variational Mode Decomposition (VMD) technique. Then, features that characterize each component are calculated.
Gök, Gökhan   +2 more
openaire   +2 more sources

Harmonic Detection for Power Grids Using Adaptive Variational Mode Decomposition

open access: yesEnergies, 2019
The harmonic pollution problem in power grids has become increasingly prominent with the large-scale application of power electronic equipment, nonlinear loads, and renewable energy.
Guowei Cai   +4 more
doaj   +1 more source

Variational Mode Decomposition Features for Heartbeat Classification

open access: yesComputing in Cardiology Conference (CinC), 2018
In software applications to analyse Heart Rate Variability (HRV) or to detect heart rhythm disorders, automatic heartbeat classification is a first step to expose abnormalities in the electrical activity of the heart. We propose a new morphological description of heartbeats based on Variational Mode Decomposition (VMD) to classify them as normal ...
Villa Gómez, A.   +4 more
openaire   +1 more source

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