Results 21 to 30 of about 5,802,905 (300)
Intelligent Controlled DSTATCOM for Power Quality Enhancement
Energies, 2022 In this study, a three-phase four-wire distribution static compensator (DSTATCOM) is proposed to improve power quality, including the compensation of the three-phase unbalanced grid currents, the total harmonic distortion (THD) reduction of the grid ...
Jun-Hao Chen +2 more
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The Design of Matched Balanced Orthogonal Multiwavelets
Frontiers in Applied Mathematics and Statistics, 2022 The theory of orthogonal multiwavelets offers enhanced flexibility for signal processing applications and analysis by employing multiple waveforms simultaneously, rather than a single one.
Joël M.H. Karel +2 more
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A Review of Wavelet Analysis and Its Applications: Challenges and Opportunities
IEEE Access, 2022 As a general and rigid mathematical tool, wavelet theory has found many applications and is constantly developing. This article reviews the development history of wavelet theory, from the construction method to the discussion of wavelet properties.
Tiantian Guo +5 more
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Wavelet Theory: Applications of the Wavelet
, 2021 In this Chapter, continuous Haar wavelet functions base and spline base have been discussed. Haar wavelet approximations are used for solving of differential equations (DEs). The numerical solutions of ordinary differential equations (ODEs) and fractional differential equations (FrDEs) using Haar wavelet base and spline base have been discussed.
Mohammed S. Mechee +2 more
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Feature Extraction of Mine Water Inrush Precursor
IEEE Access, 2020 Coal water inrush acoustic emission (AE) signal is characterized by time varying, nonstationary, unpredictable and transient properties. To extract effective features representing coal water inrush information, the AE signal is analyzed by the wavelet ...
Ye Zhang +4 more
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Karpatsʹkì Matematičnì Publìkacìï, 2022 In this paper, a new computation method derived to solve the problems of approximation theory. This method is based upon pseudo-Chebyshev wavelet approximations. The pseudo-Chebyshev wavelet is being presented for the first time.
S. Lal +3 more
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U.S. Core Inflation: A Wavelet Analysis [PDF]
, 2006 This paper proposes the use of wavelet methods to estimate U.S. core inflation. It explains wavelet methods and suggests they are ideally suited to this task.
Cotter, John +3 more
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Open Problems in Wavelet Theory [PDF]
, 2020 We present a collection of easily stated open problems in wavelet theory and we survey the current status of answering them. This includes a problem of Larson on minimally supported frequency wavelets. We show that it has an affirmative answer for MRA wavelets.
Bownik, Marcin, Rzeszotnik, Ziemowit
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Mathematical Problems in Engineering, 2008 Shannon wavelets are studied together with their differential properties (known as connection coefficients). It is shown that the Shannon sampling theorem can be considered in a more general approach suitable for analyzing functions ranging in multifrequency bands. This generalization coincides with the Shannon wavelet reconstruction of L2(ℝ) functions.
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Physical Review D, 2013 We advocate the use of Daubechies wavelets as a basis for treating a variety of problems in quantum field theory. This basis has both natural large volume and short distance cutoffs, has natural partitions of unity, and the basis functions are all related to the fixed point of a linear renormalization group equation.
Polyzou, Wayne, Bulut, Fatih
openaire +4 more sources