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Recognition method of metal fracture images based on Wavelet kurtosis and Relevance vector machine
MATEC Web of Conferences, 2016 The useful information extracted from fracture images is the most fundamental problem of quantitative analysis and intelligent diagnosis of metal fracture.
Sun Yi, Li Zhinong, Yan Jingwen
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Ratio Mathematica, 2023 In this paper , two new moduli of continuityand two estimators E2k−1,0 and,E2k−1,M of a functions f in H¨older’s class Hα,2ωk [0, 1) by First kind Chebyshev Wavelets have been determined.
Shyam Lal, Deepak Kumar Singh
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Non-decimated Wavelet Transform for a Shift-invariant Analysis
Trends in Computational and Applied Mathematics, 2018 Due to the ability of time-frequency location, the wavelet transform has been applied in several areas of research involving signal analysis and processing, often replacing the conventional Fourier transform.
Gabriela de Oliveira Nascimento Brassarote +2 more
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Jixie chuandong, 2011 The wavelet packet transform is a new multi-scale analysis method developed in the past decade.It overcomes the shortcomings of poor resolution in high-frequency part inherent in wavelet analysis.Vibration fault feature of gear is analyzed.By using the ...
王江萍, 孙文莉
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Signal processing algorithm of ship IMU accelerometer based on wavelet theory
Zhongguo Jianchuan Yanjiu, 2020 Objectives Based on an analysis of the signal noise characteristics of an inertial measurement unit (IMU) accelerometer, the noise was studied in the wavelet domain.Methods In order to solve the limitations of the traditional Fourier filtering method for
XU Bo +4 more
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The Reproducing Kernel Function for the Image Space of a Limited Spectrum Wavelet Transform
Journal of Harbin University of Science and Technology, 2017 In order to describe the nature of image space of the wavelet transform and a limited spectrum and decay faster wavelet，this paper uses Shannon scaling function to construct a wavelet function，take advantage of wavelet analysis theory to give the nature ...
DENG Cai-xia, HE Peng, CHEN Xia-xia
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Application of Wavelet Packet Energy Spectrum to Extract the Feature of the Pulse Signal
Journal of Measurement Science and Instrumentation, 2010 The wavelet packet is presented as a new kind of multi-scale analysis technique followed by Wavelet analysis.The fundamental and realization arithmetic of the wavelet packet analysis method are described in this paper.A new application approach of the ...
Dian-guo CAO +3 more
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WAVELET IDENTIFICATION OF 1/fPROCESS FOR THE FRACTAL DIMENSION OF MACHINED SURFACE TOPOGRAPHY
Jixie qiangdu, 2019 Combined with multi-scale analysis ability of wavelet, the wavelet identification of 1/f process is proposed for the characterization of machined surface topography, based on the fractal surface profile obtained by MB function, the fractal dimensions of ...
WEN ShuHua +4 more
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Bayesian modeling and significant features exploration in wavelet power spectra [PDF]
Nonlinear Processes in Geophysics, 2007 This study proposes and justifies a Bayesian approach to modeling wavelet coefficients and finding statistically significant features in wavelet power spectra.
D. V. Divine, F. Godtliebsen
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Processing and analysis of meteorological data using wavelet transforms
Известия Томского политехнического университета: Промышленная кибернетикаThe paper is devoted to the study of the possibilities of using methods of wavelet analysis for complex dynamic processes representing time series of various nature.
Igor A. Botygin +3 more
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