Kakuyūgō kenkyū
Online ISSN : 1884-9571
Print ISSN : 0451-2375
ISSN-L : 0451-2375
Analysis of Non-Stationary Plasma Experimental Data by the Wigner Distribution
Hiroshi InuzukaTakayoshi NagaiTakashige Tsukishima
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1988 Volume 60 Issue 3 Pages 217-228

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Abstract
The Wigner distribution whose usefulness for analyzing non-stationary signals was recently re-discovered, is reviewed and applied to some plasma experimental data. It is shown that better time and frequency resolved spectra can be obtained with the Wigner distribution, when compared to the conventional Fast Fourier Transform (FFT).It is also shown that the pseudo spectra which appear in the Wigner distribution can be suppressed with the aid of FFT.
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© The Japan Society of Plasma Science and Nuclear Fusion Research
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