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DOI http://dx.doi.org/10.1063/1.873192
Title Long-range time dependence in the cross-correlation function
Creator/Author Carreras, B.A. ; Newman, D.E. [Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831-8070 (United States)] ; van Milligen, B.P. ; Hidalgo, C. [Asociacion Euratom-Ciemat, 28040 Madrid (Spain)]
Publication Date1999 Feb 01
OSTI IdentifierOSTI ID: 295517
Other Number(s)Journal ID: PHPAEN; ISSN 1070-664X; TRN: TRN: 9902M0110
Resource TypeJournal Article
Resource RelationJournal Name: Physics of Plasmas; Journal Volume: 6; Journal Issue: 2; Other Information: PBD: Feb 1999
Subject70 PLASMA PHYSICS AND FUSION; CHARGED-PARTICLE TRANSPORT THEORY; CORRELATIONS; NOISE; PLASMA; FLUCTUATIONS
Description/AbstractDetection of a long-range time dependence in the radial cross-correlation function is normally difficult because of the oscillatory behavior of the cross-correlation tail, its low level of coherence, and noise contamination. This problem persists, even with large statistical samples. In this paper, a method for investigating long-range dependence in a single time series is extended to the calculation of the cross-correlation function. With this method and for time series with long-range time correlations, the accuracy of the determination of the cross-correlation function for long time lags is improved. The method is tested by applying it to fractional Gaussian noise and to the fluxes in a running sandpile model. This analysis technique can be applied to the detection of avalanche-type transport in magnetic confinement devices. {copyright} {ital 1999 American Institute of Physics.}
Country of PublicationUnited States
LanguageEnglish
FormatMedium: X; Size: pp. 485-494
System Entry Date2008 Feb 04

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