Results 51 to 60 of about 640,363 (194)

A New Definition Of The Intrinsic Mode Function

, 2009
{"references": ["L. Cohen, Time-frequency analysis: theory and applications Prentice-\nHall, Inc., Upper saddle River, NJ, 1995.", "S. Mallat. Wavelet tour of signal processing. Academic Press, San Diego,\nUSA, 1999.", "B. Boashash. Estimating and interpreting the instantaneous frequency of\na signal: Part I Fundamentals. Proc. IEEE 80, 417-430, 1992.",
Zhihua Yang, Lihua Yang
openaire   +2 more sources

Gear Fault Detection Based on Teager-Huang Transform

International Journal of Rotating Machinery, 2010
Gear fault detection based on Empirical Mode Decomposition (EMD) and Teager Kaiser Energy Operator (TKEO) technique is presented. This novel method is named as Teager-Huang transform (THT).
Hui Li, Haiqi Zheng, Liwei Tang
doaj   +1 more source

Three-Point Correlations in Weak Lensing Surveys: Model Predictions and Applications

, 2003
We use the halo model of clustering to compute two- and three-point correlation functions for weak lensing, and apply them in a new statistical technique to measure properties of massive halos. We present analytical results on the eight shear three-point
Bartelmann M., Bernardeau F., Bernardeau F., Bhuvnesh Jain, Blandford R.D., Hamana T., Jain B., Jain B., Masahiro Takada, Mo H.J., Mo H.J., Nakamura T.T., Peacock J.A., Peebles P.J.E., Peebles P.J.E., Pen U., Reblinsky K., Sheth R., Sheth R., Smith R.E., Takada M., Van Waerbeke L., Wittman D., Zehavi I.   +23 more
core   +1 more source

The monogenic synchrosqueezed wavelet transform: a tool for the decomposition/demodulation of AM–FM images [PDF]

, 2015
The synchrosqueezing method aims at decomposing 1D functions into superpositions of a small number of “Intrinsic Modes”, supposed to be well separated both in time and frequency.
Clausel, Marianne, Oberlin, Thomas, Perrier, Valérie   +2 more
core   +4 more sources

Compound Fault Diagnosis for Gearbox based on Variational ModeDecomposition and Correlated Kurtosis

Jixie chuandong, 2019
Aiming at the characteristics of non-linear, non-stationary, multi-noise and multi-fault signals of the compound fault signal in gearboxes, a compound fault diagnosis method for gearboxes based on variational mode decomposition and correlated kurtosis is
Zhang Xin, Zhao Jianmin, Tong Xiaofan, Song Weixing, Ni Xianglong   +4 more
doaj  

Analyzing nonstationary financial time series via hilbert-huang transform (HHT) [PDF]

, 2008
An apparatus, computer program product and method of analyzing non-stationary time varying phenomena. A representation of a non-stationary time varying phenomenon is recursively sifted using Empirical Mode Decomposition (EMD) to extract intrinsic mode ...
Huang, Norden E.
core   +1 more source

A Hybrid Model Combining Signal Decomposition and Inverted Transformer for Accurate Power Transformer Load Prediction

Applied Sciences
Transformer load is a key factor influencing its aging and service life. Accurately predicting load trends is crucial for assisting load redistribution.
Shuguo Gao, Chenmeng Xiang, Yanhao Zhou, Haoyu Liu, Lujian Dai, Tianyue Zhang, Yi Yin   +6 more
doaj   +1 more source

Railway rolling bearing fault diagnosis based on multi-scale intrinsic mode function permutation entropy and extreme learning machine classifier

Advances in Mechanical Engineering, 2016
The application of the multi-scale intrinsic mode function permutation entropy and extreme learning machine classifiers in railway rolling bearing fault diagnosis is here proposed in this article.
Dechen Yao, Jianwei Yang, Yongliang Bai, Xiaoqing Cheng   +3 more
doaj   +1 more source

Lithium Ion Battery Health Prediction via Variable Mode Decomposition and Deep Learning Network With Self-Attention Mechanism

Frontiers in Energy Research, 2022
Battery health prediction is very important for the safety of lithium batteries. Due to the factors such as capacity regeneration and random fluctuation in the use of lithium ion battery, the accuracy and generalization ability are poor when using a ...
Yang Ge, Fusheng Zhang, Yong Ren
doaj   +1 more source

40-Hz coherent oscillations in neuronal systems [PDF]

, 1997
A characteristic coherent oscillation with a frequency of 40 Hz which relates to some functions of the brain is shown to be intrinsic due to the nonlinear firing of spikes of neurons when the network is situated in a stimulus-induced oscillatory state ...
Chen, G, Wang, W, Wang, ZD
core   +1 more source