Experiments on Fourier phases for synthesis of non-Gaussian spikes in turbulence time series

Experiments on Fourier representation of time series are performed to explore the properties of discrete Fourier transform in connection with digital synthesis of non-Gaussian spikes in turbulence. It is shown through the simulation experiments that localized non-Gaussian spiky features within a tur...

Full description

Saved in:
Bibliographic Details
Published inJournal of wind engineering and industrial aerodynamics Vol. 89; no. 5; pp. 421 - 443
Main Authors Seong, S.H., Peterka, J.A.
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 01.04.2001
Online AccessGet full text

Cover

More Information
Summary:Experiments on Fourier representation of time series are performed to explore the properties of discrete Fourier transform in connection with digital synthesis of non-Gaussian spikes in turbulence. It is shown through the simulation experiments that localized non-Gaussian spiky features within a turbulence time series are strongly dependent on the organization of the phase part of the Fourier transform. This study shows how the phase signal can be selected to generate such spikiness while preserving the specified spectral density function.
ISSN:0167-6105
1872-8197
DOI:10.1016/S0167-6105(00)00073-8