Nonlinear Phenomena and Intermittency in Plasma Turbulence

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Abstract
A new technique combining wavelet analysis and bispectral analysis has been developed. This analysis tool permits the detection of structure in turbulent or chaotic data with time resolution, even in the presence of a significant noise contribution. Application of this technique to data obtained in fusion plasmas with Langmuir probes demonstrates its possibilities by detecting short-lived intermittent nonlinear coupling. Its application in the field of chaos analysis is indicated.

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