wavelet analysis
An application of wavelet analysis to meat consumption cycles
... The wavelet transform is a powerful tool for analyzing economic time-series data characterized by nonlinear dy- ...the wavelet analysis en- ables the researcher to separate out a time-series into its ...
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Embedded Object Detection with Radar Echo Data by Means of Wavelet Analysis of MRA: Multi-Resolution Analysis
... of wavelet analysis of MRA: Multi- Resolution Analysis, in particular, three dimensional wavelet transformations is ...dimensional wavelet transformation based edge detection, it is ...
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Wavelet analysis of the seismograms for tsunami warning
... The wavelet analysis of earthquake events gives a method- ology for tsunami warning based on the frequency content of the ...The wavelet transform is a promising tool to identify and quantify these ...
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Rotor Faults Detection in Induction Motor by Wavelet Analysis
... on wavelet analysis of the stator current which is useful for further online diagnosis in industrial ...that wavelet analysis achieves good results in the field of fault diagnosis of induction ...
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WAVELET ANALYSIS OF ULF WAVES IN THE MERCURY'S MAGNETOSPHERE
... and wavelet spectra during the MESSENGER first ...all wavelet spectra with wave periods of ...the wavelet spectra, but these waves have low amplitude compared to the total field ...field ...
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METHODS OF WAVELET ANALYSIS AS A TOOL OF ECONOMIC SECURITY
... applied wavelet tools for data cleaning from noise, anomalies that have provided quality model building reliable forecast - possible number of fires in one quarter ...
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A New Active Contour Model for Medical Image Analysis-Wavelet Vector Flow
... the wavelet transform vector Wf = ( W a 1 f ( x , y ), W a 2 f ( x , y )) , and let it replace the gradient vector in GVF snake ...the wavelet transform theory, we can know that besides magnitude and ...
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UNIVERSIDADE TÉCNICA DE LISBOAI NSTITUTO SUPERIOR DE ECONOMIA E GESTÃO Essays on Wavelets in Economics
... As mentioned earlier, this dissertation intends to contribute to the literature by providing several essays where wavelet anaysis is used to address impor- tant economics problems. In the first essay, "Money ...
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WAVELET TRANSFORMS IN TIME SERIES ANALYSIS
... series analysis and forecasting using wavelet transforms has become a powerful tool to determine, within a time series, both the dominant modes of variability and how those modes vary in ...using ...
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Significance tests for the wavelet cross spectrum and wavelet linear coherence
... In the present work, the sampling distributions of the WCS and the WLC are derived by analytical approaches, which are preferred by TC98. In many cases where the analyt- ical approach seems to be difficult, Monte Carlo ...
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Empirical evidence for gender differences in Turkey
... the wavelet transform uses local base functions that can be stretched and translated with a flexible resolution in both frequency and ...the wavelet transform, the time resolution is intrinsically adjusted ...
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Parsimonious Wavelet Kernel Extreme Learning Machine
... for wavelet kernel extreme learning machine (named PWKELM) was introduced by combining wavelet theory and a parsimonious algorithm into kernel extreme learning machine ...the wavelet analysis, ...
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Análise e síntese de um processador digital wavelet
... Dimensional analysis is performed on SAECGs electrocardiograms, defining parameters to describe angular paths and angular velocities on details, during cardiac ...spectral analysis electrocardiograph is ...
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Could periodic patterns in human mortality be sensitive to solar activity?
... and wavelet analyses show that there is a presence of a predominant yearly periodicity in all time ...2004). Wavelet analysis reveals a frequency content of yearly and semi-yearly periodicities for ...
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Lat. Am. j. solids struct. vol.11 número5
... As Cao and Qiao mentioned (Cao and Qiao, 2008), DWT has a significant drawback in com- parison to SWT. Although DWT can decompose a multicomponent signal into a group of compo- nent signals and remove unnecessary ...
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Computer-aided detection and diagnosis of breast cancer in 2D and 3D medical imaging through multifractal analysis
... image analysis have been investigated as diagnostic aids, with mathematical descriptors related with those visually used by radiologists ...the analysis of textural, morphological and kinetic enhancement ...
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Performance Analysis of Multi Spectral Band Image Compression using Discrete Wavelet Transform
... discrete wavelet transform is used to compress the Landsat5 agriculture and forestry image using various wavelets and the spectral signature graph is ...dmey wavelet is selected based on its Digital Number ...
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Departamento de Engenharia Electrotécnica
... Vários estudos têm sido realizados com o objectivo de alcançar a classificação automática do sono, cada grupo segue diferentes metodologias e utiliza ferramentas distintas. O grupo Siesta utiliza redes neuronais, embora ...
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EVALUATION OF WAVELET DENOISING METHODS FOR SMALL-SCALE JOINT ROUGHNESS ESTIMATION USING TERRESTRIAL LASER SCANNING
... mother wavelet and number of levels. To choose the wavelet, two options (matched filtering) are to correlate finite wavelets (i) with the transient surface or (ii) with the feature of interest, ...the ...
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Estabilizador de sistema de potência para máquinas síncronas de polos salientes utilizando a transformada Wavelet
... transformada wavelet, nos quais as RNAs são empregadas no ajuste dos parâmetros do PSS e na classificação de distúrbios transitórios de ...coeficientes wavelet é utilizada na detecção de variações de ...
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