Title :
Long range propagation of lightning pulses using the FDTD method
Author :
Bérenger, Jean-Pierre
Author_Institution :
Centre d´´analyse de Defense, Arcueil, France
Abstract :
The numerical dispersion of the finite-difference time-domain (FDTD) method is a serious drawback in view of computing long range propagation of lightning pulses in the Earth-ionosphere waveguide. In this paper, it is shown that most of this dispersion can be removed by postprocessing the FDTD results. This makes possible the propagation of lightning pulses up to thousands of kilometres with reasonable computational times.
Keywords :
Earth-ionosphere waveguide; finite difference time-domain analysis; lightning; Earth-ionosphere waveguide; FDTD; finite-difference time-domain method; lightning pulses; long range propagation; Earth; Electromagnetic waveguides; Finite difference methods; Frequency; Geophysical measurement techniques; Ground penetrating radar; Lightning; Maxwell equations; Optical propagation; Time domain analysis; Finite difference; finite-difference time-domain (FDTD); lightning; low frequency (LF); propagation; very low frequency (VLF);
Journal_Title :
Electromagnetic Compatibility, IEEE Transactions on
DOI :
10.1109/TEMC.2005.858747
