Results 21 to 30 of about 17,362,533 (187)
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
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Applied Mathematics in Science and Engineering, 2023 The solution of a nonlinear hyperbolic Schrödinger equation (NHSE) is proposed in this paper using the Haar wavelet collocation technique (HWCM). The central difference technique is applied to handle the temporal derivative in the NHSE and the finite ...
Weidong Lei +4 more
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Fractal and Fractional, 2023 This paper aims to solve general fractional Lane-Emden-Fowler differential equations using the Haar wavelet collocation method. This method transforms the fractional differential equation into a nonlinear system of equations, which is further solved for ...
Kholoud Saad Albalawi +3 more
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Wavelet Methods Used to Solve a System of Linear Equations [PDF]
مجلة التربية والعلم, 2006 In this paper, we study the comparison among many methods to solve a system of linear equations based on the principle of wavelet methods as a Daubechies wavelet, Haar wavelet, Meyer wavelet, Symlet wavelet, Mexican Hat wavelet, Morlet wavelet.
Riyad Mubarak Abdullah +1 more
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A FEW REMARKS ON LOCALLY COMPACT TOPOLOGIES AND HAAR SYSTEMS [PDF]
Fiabilitate şi Durabilitate, 2018 We start from the question raised by Williams (Proc. Am. Math. Soc. 2016): Must a second countable, locally compact, transitive groupoid G have open range map? If the answer is positive, the topology of G is in fact locally transitive (in the sense of [
Mădălina Roxana BUNECI
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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
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, 2017 Top row: basic forms of Haar-like features. Bottom row: vehicle rear appearances suitable for Haar-like features.
Zhiquan Qi (3838933) +4 more
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A Wavelet Collocation Method for some Fractional Models
Ratio Mathematica, 2022 This article presents an effective numerical approach based on the operational matrix of fractional order integration of Haar wavelets for dealing with the fractional models of the mixing and the Newton law of cooling problems.
R Aruldoss, G. Jasmine
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Speed Bump Enforcement System Based on Vehicle Speed Classified by Haar Cascade Classifier
Jurnal Teknologi dan Sistem Komputer, 2019 Driving at high speed is among the frequent causes of accidents. In this research, a warning system was developed to warn drivers when their speed beyond the safety limit. Haar cascade classifier was proposed for the detection system which comprises Haar
Muhammad Zulfikri +2 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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