Results 51 to 60 of about 2,323 (178)
Wavelet analysis of temporal data [PDF]
, 2008 This thesis considers the application of wavelets to problems involving multiple series of temporal data. Wavelets have proven to be highly effective at extracting frequency information from data.
Goodwin, David Alexander
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Haar wavelets based technique in evolution problems
, 2004 The compression property of wavelets in the analysis of an evolution problem (with unsmooth initial conditions) is investigated. The effectiveness of wavelets both in the reduction of complexity (number of coefficients) and in better approximation is ...
CATTANI, Carlo
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Multiresolution Analysis and Unbalanced Haar Wavelets
O presente trabalho tem como objetivo realizar uma análise da teoria de wavelets, explorando importantes ferramentas como a análise de multiresolução e a transformada wavelet discreta.
Santos, Mariana Macedo dos
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, 2012 In this paper, we present a computational method for solving a class of space-time fractional convection-diffusion equations with variable coefficients which is based on the Haar wavelets operational matrix of fractional order differentiation.
Jinxia Wei +3 more
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Free Vibration Analysis of Non-Uniform Timoshenko Beams Using Haar Wavelets [PDF]
In this paper, we present a method using Haar wavelets for solving axially functionally graded (FG) Timoshenko beam equations with non-uniform cross-sections. We compare two different approaches to the solution.
Baran, Tarık
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Modified Thresholding Technique to Compress Images Using Haar Wavelets
, 1997 Wavelets are functions that can be used to represent images. Not only are wavelets used to represent images, they are also used to compress them. Many different types of wavelets are available for compression, however this research focuses on Haar ...
Zeleznik, Heidi
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HAAR WAVELET ANALYSIS OF CLIMATIC TIME SERIES
International Journal of Wavelets, Multiresolution and Information Processing, 2014 In order to extract the intrinsic information of climatic time series from background red noise, in this paper, we will first give an analytic formula on the distribution of Haar wavelet power spectra of red noise in a rigorous statistical framework. After that, by comparing the difference of wavelet power spectra of real climatic time series and red ...
Zhang, Zhihua +2 more
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Wavelets de Haar y Daubechies y sus aplicaciones [PDF]
, 2018 Treball Final de Grau en Matemàtica Computacional. Codi: MT1030. Curs: 2017/2018El análisis de señales se aplica a diferentes campos de estudios y una forma de extraer y tratar la información de estas señales es a través de las wavelets.
Olivera Rodríguez, Nahuel
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Non-parametric linear time-invariant system identification by discrete wavelet transforms
, 2006 We describe the use of the discrete wavelet transform (DWT) for non-parametric linear time-invariant system identification. Identification is achieved by using a test excitation to the system under test (SUT) that also acts as the analyzing function for ...
Luk, RWP +3 more
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Funções wavelets de haar e aplicações
, 2014 Resumo: Neste trabalho, apresenta-se um estudo de bases ortogonais wavelets, com ênfase no sistema de Haar e suas aplicações. Inicialmente é feita uma breve revisão de conceitos, partindo em seguida para resultados da análise de multirresolução para ...
Wisniewski, Felipe
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