Wavelet Analysis of Vibration Signals Part 1: Wavelet Properties

Isogeometric analysis: vibration analysis, Fourier and wavelet spectra

This paper presents the Fourier and wavelet characterization of vibratio...

Nonlinear Wavelet Packet Denoising of Impulsive Vibration Signals

In this paper an application is presented of the wavelet packet method for denoising of impulsive vibration signals. Vibration response of machines often includes signals with periodic excitation of resonances. The aim is to extract information regarding the physical mechanism which generates the impulsive characteristics of the signals. The signals are transformed using the wavelet packet meth...

A wavelet-based approach for vibration analysis of framed structures

A Wavelet Transform Applied to Acoustic Emission Signals : Part 1 : Source Identification

A database of wideband acoustic emission (AE) modeled signals was used in Part 1 to examine the application of a wavelet transform (WT) to identify AE sources. The AE signals in the database were created by use of a validated three-dimensional finite element code. These signals represented the out-of-plane displacements from buried dipole sources in aluminum plates 4.7 mm thick and of small and...

A Novel Method of Estimating Statistically Matched Wavelet: Part 1- Compactly Supported Wavelet

Issue of finding a wavelet matched to signal has been addressed by various researchers in past. This paper presents a new method of estimating wavelet that is matched to a given signal in the statistical sense. The key idea lies in the estimation of analysis wavelet filter from a given signal and is similar to a sharpening filter used in image enhancement. The output of analysis wavelet filter ...