FDTD, FDFD, and mode sum methods for VLF-LF propagation in the lower ionosphere

Andrey N. Lyakhov; Egor S. Goncharov; Tatiana V. Losseva

doi:10.1117/12.2575631

12 November 2020 FDTD, FDFD, and mode sum methods for VLF-LF propagation in the lower ionosphere

Andrey N. Lyakhov, Egor S. Goncharov, Tatiana V. Losseva

Proceedings Volume 11560, 26th International Symposium on Atmospheric and Ocean Optics, Atmospheric Physics; 115608S (2020) https://doi.org/10.1117/12.2575631
Event: 26th International Symposium on Atmospheric and Ocean Optics, Atmospheric Physics, 2020, Moscow, Russian Federation

Abstract

Verification of the lower ionosphere models on VLF evidence requires robust radio wave propagation code. It, in turn, must handle inhomogeneous, disperse, anisotropic medium. We present results for FDTD, FVFD and complete mode sum methods for homogeneous and inhomogeneous model ionospheres. The quantitative results are presented on required memory, achievable precision and stability. The fastest, easiest and most suitable for ionosphere model verification problem method is FVFD. FDTD is general but it requires supercomputer resources in the problem of the lower ionosphere model verification.

Citation Download Citation

Andrey N. Lyakhov, Egor S. Goncharov, and Tatiana V. Losseva "FDTD, FDFD, and mode sum methods for VLF-LF propagation in the lower ionosphere", Proc. SPIE 11560, 26th International Symposium on Atmospheric and Ocean Optics, Atmospheric Physics, 115608S (12 November 2020); https://doi.org/10.1117/12.2575631

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