Results 11 to 20 of about 6,448 (221)

Analisis Perbandingan Kompresi Haar Wavelet Transform dengan Embedded Zerotree Wavelet pada Citra

open access: yesJurnal Elkomika, 2015
ABSTRAKKompresi data merupakan salah satu teknologi pemicu revolusi multimedia. Haar Wavelet mampu merepresentasikan ciri tekstur dan bentuk, sedangkan Embedded Zerotree Wavelet (EZW) mampu menyusun bit-bit menurut tingkat prioritas, sehingga mampu ...
LEDYA NOVAMIZANTI, ADRIAN KURNIA
doaj   +3 more sources

Dynamics of flight of the fragments with higher order Haar wavelet method [PDF]

open access: yesProceedings of the Estonian Academy of Sciences
Fragments that have an irregular shape and move at high speeds are difficult to assess since experiments require high-tech solutions, and the differential equations that describe the motion cannot be solved analytically.
Lenart Kivistik   +3 more
doaj   +2 more sources

Discrete differential operators in multidimensional Haar wavelet spaces [PDF]

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2004
We consider a class of discrete differential operators acting on multidimensional Haar wavelet basis with the aim of finding wavelet approximate solutions of partial differential problems.
Carlo Cattani, Luis M. Sánchez Ruiz
doaj   +2 more sources

Haar Wavelet Method for the System of Integral Equations [PDF]

open access: yesAbstract and Applied Analysis, 2014
We employed the Haar wavelet method to find numerical solution of the system of Fredholm integral equations (SFIEs) and the system of Volterra integral equations (SVIEs).
Hassan A. Zedan, Eman Alaidarous
doaj   +4 more sources

Solution of wave-like equation based on Haar wavelet

open access: yesLe Matematiche, 2012
Wavelet transform and wavelet analysis are powerful mathematical tools for many problems. Wavelet also can be applied in numerical analysis. In this paper, we apply Haar wavelet method to solve wave-like equation with initial and boundary conditions ...
Naresh Berwal   +2 more
doaj   +2 more sources

Haar Wavelet Collocation Method for Solving Linear Volterra and Fredholm Integral Equations

open access: yes, 2022
: The main purpose of this paper is to obtain the numerical solution of linear Volterra and Fredholm integral equations by using Haar wavelet collocation method.
Mohammed Abdujebar Essa   +1 more
core   +2 more sources

Haar wavelets method for solving class of coupled systems of linear fractional Fredholm integro-differential equations

open access: yesHeliyon, 2023
In this paper, firstly, the “ Haar wavelet method ” is used to give approximate solutions for coupled systems of linear fractional Fredholm integro-differential equations.
Amer Darweesh   +2 more
doaj   +1 more source

A Haar Wavelet Decision Feedback Channel Estimation Method in OFDM Systems

open access: yesApplied Sciences, 2018
Channel estimation is a key technology in improving the performance of the orthogonal frequency division multiplexing (OFDM) system. The pilot-based channel estimation method decreases the spectral efficiency and data transmission rate. Some conventional
Ruiguang Tang, Xiao Zhou, Chengyou Wang
doaj   +1 more source

Perturbations of the Haar wavelet [PDF]

open access: yesProceedings of the American Mathematical Society, 1997
Summary: Let \(m \in Z^+\) be given. For any \(\varepsilon > 0\) we construct a function \(f^{\{\varepsilon \}}\) having the following properties: (a) \(f^{\{\varepsilon \}}\) has support in \([-\varepsilon , 1 + \varepsilon ]\). (b) \(f^{\{\varepsilon \}} \in C^m(-\infty , \infty)\).
Govil, N. K., Zalik, R. A.
openaire   +1 more source

Simulation of a non‐linear, time‐variant circuit using the Haar wavelet transform

open access: yesIET Science, Measurement & Technology, 2022
Wavelet theory has disentangled numerous complexities, including those pertinent to transient and steady‐state responses of systems, when Laplace and Fourier transforms face insoluble obstacles. Reactive linear components (e.g.
Georgios G. Roumeliotis   +2 more
doaj   +1 more source

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