Results 11 to 20 of about 3,308 (181)

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   +1 more source

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   +1 more source

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

Numerical solution of damped forced oscillator problem using Haar wavelets [PDF]

open access: yesIranian Journal of Numerical Analysis and Optimization, 2015
We present here the numerical solution of damped forced oscillator problem using Haar wavelet and compare the numerical results obtained with some well-known numerical methods such as Runge-Kutta fourth order classical and Taylor Series methods ...
Inderdeep Singh, Sheo Kumar
doaj   +1 more source

Two-dimensional Haar Wavelet Method for Numerical Solution of Delay Partial Differential Equations

open access: yesJournal of Function Spaces, 2022
In this paper, a two-dimensional Haar wavelet collocation method is applied to obtain the numerical solution of delay and neutral delay partial differential equations. Both linear and nonlinear problems can be solved using this method.
Rohul Amin   +4 more
doaj   +1 more source

Non-dyadic Haar Wavelet Algorithm for the Approximated Solution of Higher order Integro-Differential Equations

open access: yesInternational Journal of Mathematical, Engineering and Management Sciences, 2023
The objective of this study is to explore non-dyadic Haar wavelets for higher order integro-differential equations. In this research article, non-dyadic collocation method is introduced by using Haar wavelet for approximating the solution of higher order
Ratesh Kumar, Sabiha Bakhtawar
doaj   +1 more source

Implementasi Transformasi Wavelet Daubechies pada Kompresi Citra Digital

open access: yesCauchy: Jurnal Matematika Murni dan Aplikasi, 2013
Proses kompresi merupakan proses mereduksi ukuran suatu data untuk menghasilkan representasi digital yang padat atau mampat, namun tetap dapat mewakili kuantitas informasi yang terkandung pada data tersebut.
Suma'inna Suma'inna, Gugun Gumilar
doaj   +1 more source

Home - About - Disclaimer - Privacy