Results 21 to 30 of about 77,620 (219)
Numerical Solution for Linear State Space Systems using Haar Wavelets Method
مجلة بغداد للعلوم, 2022 In this research, Haar wavelets method has been utilized to approximate a numerical solution for Linear state space systems. The solution technique is used Haar wavelet functions and Haar wavelet operational matrix with the operation to transform the ...
Waleeda swaidan ali, Haleema S. Ali
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Solving a Class of Nonlinear Optimal Control Problems Using Haar Wavelets and Hybrid GA [PDF]
Control and Optimization in Applied Mathematics, 2023 In this paper, we solve a class of nonlinear optimal control problems using a hybrid genetic algorithm (HGA) and a direct method based on the Haar wavelets where the performance index is Bolza-form and the dynamic system is linear.
Saeed Nezhadhosein +2 more
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Perturbations of the Haar wavelet [PDF]
Proceedings 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.
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Nonlinear Engineering, 2015 In this paper, we propose a new operational matrix method of fractional order integration based on Haar wavelets to solve fractional order differential equations numerically. The properties of Haar wavelets are first presented.
Shah Firdous A., Abbas R.
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APLICAÇÃO DE WAVELETS PARA REMOÇÃO DE RUÍDOS EM SINAIS UNIDIMENSIONAIS
Holos, 2008 Este trabalho descreve uma investigação da filtragem de diferentes tipos de sinais utilizando Wavelets, através do estudo empírico do nível de Threshold. Foram utilizados sinais senoidais padrão e sinais de voz.
Aderson Cleber Pifer +2 more
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Numerical solution of nonlinear stochastic Itô–Volterra integral equations based on Haar wavelets
Advances in Difference Equations, 2019 In this paper, an efficient numerical method is presented for solving nonlinear stochastic Itô–Volterra integral equations based on Haar wavelets.
Jieheng Wu, Guo Jiang, Xiaoyan Sang
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Advances in Difference Equations, 2020 An effective and robust scheme is developed for solutions of two-dimensional time fractional heat flow problems. The proposed scheme is based on two-dimensional Haar wavelets coupled with finite differences. The time fractional derivative is approximated
Abdul Ghafoor +3 more
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Inpainting by Flexible Haar-Wavelet Shrinkage [PDF]
SIAM Journal on Imaging Sciences, 2008 We present novel wavelet-based inpainting algorithms. Applying ideas from anisotropic regularization and diffusion, our models can better handle degraded pixels at edges. We interpret our algorithms within the framework of forward-backward splitting methods in convex analysis and prove that the conditions for ensuring their convergence are fulfilled ...
Raymond H. Chan +2 more
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Haar wavelets method for solving Pocklington's integral equation [PDF]
, 1991 summary:A simple and effective method based on Haar wavelets is proposed for the solution of Pocklington’s integral equation. The properties of Haar wavelets are first given.
G. Beylkin +6 more
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Haar Matrix Equations for Solving Time-Variant Linear-Quadratic Optimal Control Problems [PDF]
Control and Optimization in Applied Mathematics, 2017 In this paper, Haar wavelets are performed for solving continuous time-variant linear-quadratic optimal control problems. Firstly, using necessary conditions for optimality, the problem is changed into a two-boundary value problem (TBVP).
Saeed Nezhadhosein
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