Publication Type |
pre-print |
School or College |
College of Engineering |
Department |
Electrical & Computer Engineering |
Creator |
Simpson, Jamesina J. |
Other Author |
Taflove, Allen |
Title |
Three-dimensional FDTD modeling of impulsive ELF propagation about the earth-sphere |
Date |
2004-01-01 |
Description |
This paper reports the application of an efficient finite-difference time-domain (FDTD) algorithm to model impulsive extremely low frequency (ELF) propagation within the entire Earth-ionosphere cavity. Periodic boundary conditions are used in conjunction with a three-dimensional latitude-longitude FDTD space lattice which wraps around the complete Earth-sphere. Adaptive combination of adjacent grid cells in the east-west direction minimizes cell eccentricity upon approaching the poles and hence maintains Courant stability for relatively large time steps. This technique permits a direct, three-dimensional time-domain calculation of impulsive, round-the-world ELF propagation accounting for arbitrary horizontal as well as vertical geometrical and electrical inhomogeneities/anisotropies of the excitation, ionosphere, lithosphere, and oceans. The numerical model is verified by comparing its results for ELF propagation attenuation with corresponding data reported in the literature. |
Type |
Text |
Publisher |
Institute of Electrical and Electronics Engineers (IEEE) |
Volume |
3 |
First Page |
215 |
Last Page |
218 |
Dissertation Institution |
University of Utah |
Language |
eng |
Bibliographic Citation |
Simpson, J. J., & Taflove, A. (2004). Three-dimensional FDTD modeling of impulsive ELF propagation about the earth-sphere. IEEE Transactions on Antennas and Propagation, 52(2), 443-51. |
Rights Management |
(c) 2004 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE. |
Format Medium |
application/pdf |
Format Extent |
377,077 bytes |
Identifier |
uspace,17738 |
ARK |
ark:/87278/s634944p |
Setname |
ir_uspace |
ID |
708104 |
Reference URL |
https://collections.lib.utah.edu/ark:/87278/s634944p |