Title :
Grid-cell combination in 3D-FDTD modeling of ELF propagation of the earth
Author :
Xia, Hangang ; Wang, Yi ; Cao, Qunsheng
Author_Institution :
Coll. of Inf. Sci. & Technol., Nanjing Univ. of Aeronaut. & Astronaut. (NUAA), Nanjing, China
Abstract :
In this paper, we have developed a model of extremely low frequency (ELF) wave propagation based on an advanced three-dimensional finite difference time-domain (3D-FDTD) method. We have studied the Schumann Resonances (SR) of the earth and three different altitude profiles of conductivity in the lossy Earth-Ionosphere Cavity. The eigen-frequencies of the model have been obtained, and the global averages of the vertical Er and tangential Eθ components for these three different conductivity models have been investigated.
Keywords :
Earth; electromagnetic wave propagation; finite difference time-domain analysis; 3D-FDTD modeling; ELF propagation; Schumann resonances; earth; earth-ionosphere cavity; eigen-frequencies; extremely low frequency wave propagation; grid-cell; three-dimensional finite difference time-domain method; Conductivity; Earth; Finite difference methods; Frequency; Geophysical measurement techniques; Geoscience; Ground penetrating radar; Resonance; Tellurium; Time domain analysis; FDTD method; Schumann Resonances; altitude profiles of conductivities; grid-cell combination;
Conference_Titel :
Microwave and Millimeter Wave Technology (ICMMT), 2010 International Conference on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4244-5705-2
DOI :
10.1109/ICMMT.2010.5525068
