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http://dx.doi.org/10.5207/JIEIE.2013.27.7.052

Reconstruction of the Electron Density Profile in O-mode Ultrashort Pulse Reflectometry using a Two-dimensional Finite Difference Time Domain  

Roh, Young-Su (Soongsil University)
Publication Information
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers / v.27, no.7, 2013 , pp. 52-58 More about this Journal
Abstract
The two-dimensional finite difference time domain algorithm is used to numerically reconstruct the electron density profile in O-mode ultrashort pulse reflectometry. A Gaussian pulse is employed as the source of a probing electromagnetic wave. The Gaussian pulse duration is chosen in such a manner as to have its frequency spectrum cover the whole range of the plasma frequency. By using a number of numerical band-pass filters, it is possible to compute the time delays of the frequency components of the reflected signal from the plasma. The electron density profile is reconstructed by substituting the time delays into the Abel integral equation. As a result of simulation, the reconstructed electron density profile agrees well with the assumed profile.
Keywords
Finite Difference Time Domain; Electron Density; Ultrashort Pulse Reflectometry; Abel Integral Equation;
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Times Cited By KSCI : 1  (Citation Analysis)
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