Results 21 to 30 of about 321,454 (242)
Analisis Perbandingan Kompresi Haar Wavelet Transform dengan Embedded Zerotree Wavelet pada Citra
Jurnal 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
AIMS Mathematics, 2020 The essential objective of this work is to implement Adam Bashforth’s Moulton (ABM) and Haar wavelet method (HWM) to solve fractional chemical kinetics and another problem that relates the condensations of carbon dioxide (CO2) and phenyl glycidyl ether ...
Ranbir Kumar +3 more
doaj +1 more source
Comments on "phase-shifting for nonseparable 2-D haar wavelets" [PDF]
, 2009 In their recent paper, Alnasser and Foroosh derive a wavelet-domain (in-band) method for phase-shifting of 2-D "nonseparable" Haar transform coefficients. Their approach is parametrical to the (a priori known) image translation.
Andreopoulos, Y
core +1 more source
Arab Journal of Basic and Applied Sciences, 2021 In this paper, a numerical algorithm is developed for the solution of second order linear and nonlinear integro-differential equations. The Haar collocation technique is applied to second order linear and nonlinear integro-differential equations. In Haar
Rohul Amin +4 more
semanticscholar +1 more source
Dynamics of flight of the fragments with higher order Haar wavelet method [PDF]
Proceedings of the Estonian Academy of SciencesFragments 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
Heliyon, 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
Multilevel Approach For Signal Restoration Problems With Toeplitz Matrices [PDF]
, 2010 We present a multilevel method for discrete ill-posed problems arising from the discretization of Fredholm integral equations of the first kind. In this method, we use the Haar wavelet transform to define restriction and prolongation operators within a ...
Español, Malena I., Kilmer, Misha E.
core +1 more source
A Haar Wavelet Decision Feedback Channel Estimation Method in OFDM Systems
Applied 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
Simulation of a non‐linear, time‐variant circuit using the Haar wavelet transform
IET 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]
Iranian 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