A geodesic finite-difference time-domain model of magnetized plasma

Electromagnetic wave propagation in the Earth-ionosphere cavity presents an interesting challenge for simulations. Three-dimensional latitude-longitude finite-difference time-domain (FDTD) models accounting for the bathymetry, topography and ionosphere have been developed and applied towards a number of applications previously. However, to date most of these models treat the ionosphere as a simple, isotropic exponential conductivity profile. Only recently has a latitude-longitude FDTD model been developed that treats the ionosphere as a magnetized cold plasma. This opens the door to modeling electromagnetic phenomena at higher frequencies and higher altitudes by accommodating more physics. Further, a geodesic (hexagonal-pentagonal) FDTD model that is more efficient, is easier to implement, and executes faster than latitude-longitude models has been recently developed. In this thesis, the magnetized cold plasma global latitude-longitude algorithm is adapted and implemented for the first time in a geodesic FDTD model of the Earth-ionosphere cavity.

Name thesis:degree_name

Electrical Engineering

Level thesis:degree_level

Thesis

Discipline thesis:degree_discipline

Electrical and Computer Engineering

Year

2012

Author dc:creator

• Schlegel, Ryan

Contributors dc:contributor

• Simpson, Jamesina
• Gilmore, Mark
• Graham, Edward, Jr
• Lester, Luke

Language dc:language

English

Repository record dc:identifier

https://digitalrepository.unm.edu/ece_etds/228

OAI identifier oai:identifier

oai:digitalrepository.unm.edu:ece_etds-1227