Results 1 to 10 of about 281 (77)
Multivariate Multiscale Dispersion Entropy of Biomedical Times Series [PDF]
Entropy, 2019 Due to the non-linearity of numerous physiological recordings, non-linear analysis of multi-channel signals has been extensively used in biomedical engineering and neuroscience.
Hamed Azami +2 more
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Intra- and Inter-Regional Complexity in Multi-Channel Awake EEG Through Multivariate Multiscale Dispersion Entropy for Assessing Sleep Quality and Aging [PDF]
BiosensorsAging and poor sleep quality are associated with altered brain dynamics, yet current electroencephalography (EEG) analyses often overlook regional complexity.
Ahmad Zandbagleh +5 more
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Fault Diagnosis of Wind Turbine Gearbox Based on Improved Multivariate Variational Mode Decomposition and Ensemble Refined Composite Multivariate Multiscale Dispersion Entropy [PDF]
EntropyWind turbine planetary gearboxes have complex structures and operating environments, which makes it difficult to extract fault features effectively. In addition, it is difficult to achieve efficient fault diagnosis.
Xin Xia, Xiaolu Wang, Weilin Chen
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IEEE Access, 2019 Many nonlinear dynamic and statistic methods, including multiscale sample entropy (MSE) and multiscale fuzzy entropy (MFE), have been widely studied and employed to fault diagnosis of the rolling bearing. Multiscale dispersion entropy (MDE) is a powerful
Congzhi Li +4 more
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Complexity Analysis of Three-Dimensional Fractional-Order Chaotic System Based on Entropy Theory
IEEE Access, 2021 Complexity analysis of fractional-order chaotic system is an interesting topic in recent years. How to measure the complexity of fractional-order chaotic system correctly and effectively is the basis of its theoretical analysis and engineering ...
Guohui Li, Xiangyu Zhang, Hong Yang
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Entropy, 2021 In the fault monitoring of rotating machinery, the vibration signal of the bearing and gear in a complex operating environment has poor stationarity and high noise.
Chenbo Xi +4 more
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IEEE Access, 2022 This paper proposes an Improved Multivariate Multiscale Dispersion Entropy(IMMDE) combined with Hierarchical Entropy(HE) for vibration signal feature extraction.
Zhuang Tang, Jie Liu, Chaofeng Li
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Alexandria Engineering Journal, 2022 The processing of ship radiated noise is a research hotspot in the field of military and marine resource exploration. Frequency characteristic is an important characteristic of ship radiated noise.
Guohui Li, Yongming Hou, Hong Yang
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Entropy, 2020 The aim of this study was to develop an integrated system of non-contact sleep stage detection and sleep disorder treatment for health monitoring. Hence, a method of brain activity detection based on microwave scattering technology instead of scalp ...
Daoshuang Geng +3 more
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A New Denoising Method for Underwater Acoustic Signal
IEEE Access, 2020 In recent years, the rapid development of marine science has put forward higher and higher requirements for the processing of ship-radiated noise signal.
Hong Yang, Lulu Li, Guohui Li
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