Wavelet analysis of experimental data: Some methods and the underlying physics

Jacques Lewalle

Research output: Contribution to conferencePaper

27 Scopus citations

Abstract

As a generalization of time-frequency analysis, wavelet methods combine sequential and spectral discrimination with pattern recognition. In conjunction with conventional statistical tools of time series analysis, these features are at the basis of new ways to characterize experimental data. The methods presented in this paper can be formulated as sequences of modular algorithms that characterize and/or enhance specific features of dynamical interest, and can be compared with specialized post-processing instrumentation. The investigator plays an important role in matching the wavelet-based algorithms to specific data, much in the same way as he/she selects instrumentation. The feedback between the physical insight and the implementation of new algorithms characterizes this phase of the research. In this paper, a toolbox is presented with illustrative examples.

Original languageEnglish (US)
DOIs
StatePublished - Jan 1 1994
EventAIAA Fluid Dynamics Conference, 1994 - Colorado Springs, United States
Duration: Jun 20 1994Jun 23 1994

Other

OtherAIAA Fluid Dynamics Conference, 1994
CountryUnited States
CityColorado Springs
Period6/20/946/23/94

ASJC Scopus subject areas

  • Aerospace Engineering
  • Engineering (miscellaneous)

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    Lewalle, J. (1994). Wavelet analysis of experimental data: Some methods and the underlying physics. Paper presented at AIAA Fluid Dynamics Conference, 1994, Colorado Springs, United States. https://doi.org/10.2514/6.1994-2281