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| Titel |
A 3D ray-tracing software for OTH radar simulations |
| VerfasserIn |
P. Coïsson, G. Occhipinti, J. P. Molinie, P. Lognonné |
| Konferenz |
EGU General Assembly 2009
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 11 (2009) |
| Datensatznummer |
250028548
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| Zusammenfassung |
| We present a 3D electromagnetic wave ray-tracing software (TDR) based on the geometric optic linear theory. Ray propagation through a 3D heterogeneous ionosphere (e.g., NeQuick, IRI) above an ellipsoidal Earth (WGS-84) is solved using fourth-order Runge-Kutta method for the solution of the eikonal equation. Modeling is specifically developed for mono-static over-the-horizon (OTH) radar with co-located emitters and receivers (e.g., French OTH-Radar Nostradamus).
The two 3D ionospheric models used to calculate the local index of refraction along the ray-path, nominally IRI and NeQuick, present different characteristics. Here we explore the sensitivity of ray propagation to the theoretical seasonal/geographical/solar activity variations of the ionosphere. Our simulations are supported by three years of Nostradamus OTH-radar data. |
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