Title :
Spatial stability analysis for the geodesic FDTD algorithm
Author :
Wang, Yi ; Qunsheng Cao ; Su, Bingbo
Author_Institution :
Coll. of Electron. & Inf. Eng., Nanjing Univ. of Aeronaut. & Astronaut. (NUAA), Nanjing, China
Abstract :
The spatial stability is analyzed for the geodesic finite-difference time domain (FDTD) method. The analysis is based on the finite integration technique (FIT) and tensor analysis. After rigorous theoretical analysis, we point out that the present geodesic FDTD method can provide approximate but long-time stable solutions to the extremely low-frequency (ELF) electromagnetic wave propagation problems in the Earth-ionosphere system. We have also simulated an example of longtime wave propagation to prove our analysis.
Keywords :
differential geometry; electromagnetic wave propagation; finite difference time-domain analysis; tensors; Earth-ionosphere system; extremely low-frequency electromagnetic wave propagation problems; finite integration technique; geodesic FDTD algorithm; geodesic finite-difference time domain method; longtime wave propagation; spatial stability analysis; tensor analysis; Algorithm design and analysis; Artificial neural networks; Finite difference methods; Geophysical measurement techniques; Ground penetrating radar; Ionosphere; Time domain analysis;
Conference_Titel :
RF and Microwave Conference (RFM), 2011 IEEE International
Conference_Location :
Seremban, Negeri Sembilan
Print_ISBN :
978-1-4577-1628-7
DOI :
10.1109/RFM.2011.6168725
