Results 11 to 20 of about 22,168,469 (247)

Wavelet analysis of temporal data [PDF]

open access: yes, 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
core   +7 more sources

U.S. Core Inflation: A Wavelet Analysis [PDF]

open access: yes, 2006
This paper proposes the use of wavelet methods to estimate U.S. core inflation. It explains wavelet methods and suggests they are ideally suited to this task.
Cotter, John   +3 more
core   +3 more sources

Interpretation of wavelet analysis and its application in partial discharge detection. [PDF]

open access: yes, 2002
The objective of the paper is to discuss a tool which is proving extremely efficient in partial discharge measurement studies. Though the technique itself is not new, its application to partial discharge studies is.
Zhou, C., Kemp, I. J., Ma, X.
core   +4 more sources

Fringe pattern analysis using a one-dimensional modified Morlet continuous wavelet transform [PDF]

open access: yes, 2008
This paper proposes the use of a modified Morlet wavelet in order to demodulate fringe patterns in conjunction with the one-dimensional continuous wavelet transform (1D-CWT). Our investigations demonstrate that the modified Morlet wavelet produces better
Gdeisat, Munther A.   +11 more
core   +1 more source

Local appearance-based face recognition using adaptive directional wavelet transform

open access: yesJournal of King Saud University: Computer and Information Sciences, 2019
The latest research has shown that adaptive directional wavelet transform can constitute edges and textures in images efficiently due to the adaptive directional selectivity.
Mohd. Abdul Muqeet, Raghunath S. Holambe
doaj   +1 more source

Signal Extraction from GNSS Position Time Series Using Weighted Wavelet Analysis

open access: yesRemote Sensing, 2020
The daily position time series derived by Global Navigation Satellite System (GNSS) contain nonlinear signals which are suitably extracted by using wavelet analysis.
Kunpu Ji, Yunzhong Shen, Fengwei Wang
doaj   +1 more source

DETECTION OF DAMAGE LOCATION IN BEAMS USING DISCRETE WAVELET ANALYSIS [PDF]

open access: yesThe Egyptian International Journal of Engineering Sciences and Technology, 2018
Damage detection in structures using vibration analysis has been a subject ofintensive investigation for the last two decades. In this paper, a method for damagedetection using wavelet analysis is presented.
A Bakry, S Mourad, S Selmy
doaj   +1 more source

Wavelet Estimators in Nonparametric Regression: A Comparative Simulation Study [PDF]

open access: yes, 2001
Wavelet analysis has been found to be a powerful tool for the nonparametric estimation of spatially-variable objects. We discuss in detail wavelet methods in nonparametric regression, where the data are modelled as observations of a signal contaminated ...
Theofanis Sapatinas   +5 more
core   +1 more source

Application of Shannon Wavelet Entropy and Shannon Wavelet Packet Entropy in Analysis of Power System Transient Signals

open access: yesEntropy, 2016
In a power system, the analysis of transient signals is the theoretical basis of fault diagnosis and transient protection theory. Shannon wavelet entropy (SWE) and Shannon wavelet packet entropy (SWPE) are powerful mathematics tools for transient signal ...
Jikai Chen   +3 more
doaj   +1 more source

WaveConstLib: A java library for signal analysis and wavelet construction

open access: yesSoftwareX
Wavelet theory (WT) is essential for analyzing non-stationary signals, particularly in real-world applications requiring time-frequency analysis. A key challenge is to identify the optimal wavelet function that matches signal characteristics, enabling ...
Çağla Sarvan Cibil, Nalan Özkurt
doaj   +1 more source

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