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Determination of Plasma Potential from the Langmuir Probe Trace Using Bi-orthogonal Wavelet Transform

Title
Determination of Plasma Potential from the Langmuir Probe Trace Using Bi-orthogonal Wavelet Transform
Author
김대경
Keywords
Langmuir probe; Wavelet transform; Probe data analysis; Plasma diagnostics
Issue Date
2003-02
Publisher
KOREAN PHYSICAL SOC(한국물리학회)
Citation
JOURNAL OF THE KOREAN PHYSICAL SOCIETY, v.42, No.3, Page.867-872
Abstract
In automatic analysis of the Langmuir probe (LP) data, the determination of the plasma potential with less operator inputs improves the accuracy and consistency of the analysis. In this study, a new algorithm was utilized to determine the plasma potential using bi-orthogonal wavelet transform. In spite of the high noise level of the probe data, the bi-orthogonal wavelet transform of the first order differentiated LP data provides the peak clearly. The plasma potential can be determined from the peak of the differentiated data in a mathematical manner and the data process regions are partitioned with respect to the plasma without any operator inputs. The sensitivity of this algorithm was evaluated with artificial data including random noise.
URI
https://www.kci.go.kr/kciportal/ci/sereArticleSearch/ciSereArtiView.kci?sereArticleSearchBean.artiId=ART000993886https://repository.hanyang.ac.kr/handle/20.500.11754/154902
ISSN
0374-4884
Appears in Collections:
COLLEGE OF SCIENCE AND CONVERGENCE TECHNOLOGY[E](과학기술융합대학) > APPLIED MATHEMATICS(응용수학과) > Articles
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