Results 161 to 170 of about 38,147 (211)

A VMD Based Approach for Speech Enhancement

2015
This paper proposes a Variational Mode Decomposition (VMD) based approach for enhancement of speech signals distorted by white Gaussian noise. VMD is a data adaptive method which decomposes the signal into intrinsic mode functions (IMFs) by using the Alternating Direction Method of Multipliers (ADMM).
B. Ganga Gowri, S. Sachin Kumar, Neethu Mohan, K. P. Soman   +3 more
openaire   +1 more source

Experimental Investigation Using Robust Deep VMD-ICA and 1D-CNN for Condition Monitoring of Roller Element Bearing

Journal of Computing and Information Science in Engineering
A rotor-bearing system experiences numerous vibrations during the operation that frequently degrade performance and endanger operational safety. Roller bearing failure has significant consequences, leading to downtime or even a complete outage of ...
V. G. Salunkhe, S. Khot, P. S. Jadhav, Nitesh P. Yelve, M. B. Kumbhar   +4 more
semanticscholar   +1 more source

EMS placements at the VMD in 2022

Veterinary Record, 2021
Helen, Swift, Vicky, Herbert
openaire   +2 more sources

Radar Fingerprint Feature Extraction Based on VMD

2019 19th International Symposium on Communications and Information Technologies (ISCIT), 2019
Extracting effective radar fingerprint features is crucial for accurate radar fingerprint recognition which is an important part of radar reconnaissance . The received radar signals are nonstationary and nonlinear time series. Traditional feature extraction methods such as bispectral estimation and time-frequency analysis have high complexity and are ...
Fuyan Lin, Songlin Sun, Xiaoying Hou, Yuhao Liu   +3 more
openaire   +1 more source

Hybrid VMD-CNN-GRU-based model for short-term forecasting of wind power considering spatio-temporal features

Engineering applications of artificial intelligence, 2023
Zeni Zhao, Sining Yun, Lingyun Jia, Jiaxin Guo, Yao Meng, Ning He, Xuejuan Li, Jiarong Shi, Liu Yang   +8 more
semanticscholar   +1 more source

A algorithm of VMD for the detection of APF harmonics

2017 32nd Youth Academic Annual Conference of Chinese Association of Automation (YAC), 2017
In this paper, a new algorithm of Mode Decomposition Variational (VMD) for the detection of harmonics is proposed for the first time, and it is applied to the active power filter(APF). VMD decomposes the distorted power signal into a series of intrinsic mode functions (IMF), and different IMF components represent different frequency components, so that
Qiangwei Chen, Wenhao Cai
openaire   +1 more source

A novel hybrid model for water quality prediction based on VMD and IGOA optimized for LSTM

Frontiers of Environmental Science and Engineering, 2023
Zhaocai Wang, Qingyuan Wang, Tunhua Wu
semanticscholar   +1 more source

A parameter-adaptive VMD method based on grasshopper optimization algorithm to analyze vibration signals from rotating machinery

Mechanical systems and signal processing, 2018
The mode number and mode frequency bandwidth control parameter (or quadratic penalty term) have significant effects on the decomposition results of the variational mode decomposition (VMD) method.
Xin Zhang, Q. Miao, Heng Zhang, Lei Wang
semanticscholar   +1 more source

Intelligent fault diagnosis of train axle box bearing based on parameter optimization VMD and improved DBN

Engineering applications of artificial intelligence, 2022
Zhenzhen Jin, Deqiang He, Zexian Wei
semanticscholar   +1 more source

Vacuum Membrane Distillation (VMD)

2014
Vacuum membrane distillation (VMD) is one of the possible configurations of membrane distillation, where vacuum is applied at the distillate side in order to create the driving force for the water vapor and volatile transfer from the feed to the permeate side (Fig. 1).
openaire   +1 more source