Results 1 to 10 of about 19,615 (262)

Polynomial, Neural Network, and Spline Wavelet Models for Continuous Wavelet Transform of Signals [PDF]

open access: yesSensors, 2021
In this paper a modified wavelet synthesis algorithm for continuous wavelet transform is proposed, allowing one to obtain a guaranteed approximation of the maternal wavelet to the sample of the analyzed signal (overlap match) and, at the same time, a ...
Andrey Stepanov
doaj   +2 more sources

On Local Fractional Continuous Wavelet Transform [PDF]

open access: yesAbstract and Applied Analysis, 2013
We introduce a new wavelet transform within the framework of the local fractional calculus. An illustrative example of local fractional wavelet transform is also presented.
Xiao-Jun Yang   +3 more
doaj   +5 more sources

Application of Wavelet Transform to Urysohn-Type Equations

open access: yesMathematics, 2023
This paper deals with convolution-type Urysohn equations of the first kind. Finding a solution for such equations is an ill-posed problem. For it to be solved, regularization algorithms and the continuous wavelet transform are used.
V. Lukianenko, M. Kozlova, V. Belozub
doaj   +1 more source

The continuous wavelet transform using for natural ECG signal arrhythmias detection by statistical parameters

open access: yesAlexandria Engineering Journal, 2022
The electrocardiogram (ECG) is immensely beneficial for diagnosing the arrhythmias that may lead to serious complications in the heart health. In this paper, the continuous wavelet transform (CWT) was used for electrocardiogram arrhythmias detection. The
R.A. Alharbey   +3 more
doaj   +1 more source

Continuous and Discrete Wavelet Transforms [PDF]

open access: yesSIAM Review, 1989
This paper is an expository survey of results on integral representations and discrete sum expansions of functions in $L^2 ({\bf R})$ in terms of coherent states. Two types of coherent states are considered: Weyl–Heisenberg coherent states, which arise from translations and modulations of a single function, and affine coherent states, called ’wavelets,’
Christopher Heil, David Francis Walnut
openaire   +1 more source

Hyperspectral estimation of the soluble solid content of intact netted melons decomposed by continuous wavelet transform

open access: yesFrontiers in Physics, 2022
Netted melons are welcomed for their soft and sweet pulp and strong aroma during the best-tasting period. The best-tasting period was highly correlated with its soluble solid content (SSC).
Chao Zhang   +12 more
doaj   +1 more source

Application of multi-dimensional wavelet transform to fluid mechanics

open access: yesTheoretical and Applied Mechanics Letters, 2020
: This paper first reviews the application research works of wavelet transform on the fluid mechanics. Then the theories of continuous wavelet transform and multi-dimensional orthogonal (discrete) wavelet transform, including wavelet multiresolution ...
Akira Rinoshika, Hiroka Rinoshika
doaj   +1 more source

On alternative wavelet reconstruction formula: a case study of approximate wavelets [PDF]

open access: yesRoyal Society Open Science, 2014
The application of the continuous wavelet transform to the study of a wide class of physical processes with oscillatory dynamics is restricted by large central frequencies owing to the admissibility condition.
Elena A. Lebedeva, Eugene B. Postnikov
doaj   +1 more source

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