Abstract
Abstract
A combination of the Fourier transform and the maximum entropy method for estimating the frequency-wavenumber resolved power spectrum density is proposed. After illustrating the physical insight of the maximum entropy method by using synthetic test data, capability of the proposed method is tested using numerical simulation data. The method is also applied to experimental data obtained by the beam emission spectroscopy in the Large Helical Device. All of those examinations show that the proposed method provides more plausible results than conventional methods when the available spatial points are limited.
Funder
Japan Society for the Promotion of Science
National Institute for Fusion Science
Subject
Condensed Matter Physics,Nuclear Energy and Engineering
Cited by
2 articles.
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