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Propagation predictions and studies using a ray tracing program combined with a theoretical ionospheric model

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2 Author(s)
Myung Lee ; RCA, Clover Communications, Inc., NJ, USA ; Nisbet, J.

Radio wave propagation predictions are described in which modern comprehensive theoretical ionospheric models are coupled with ray-tracing programs. In the computer code described, a network of electron density and collision frequency parameters along a band about the great circle path is calculated by specifying the transmitter and receiver geographic coordinates, time, the day number, and the 2800-MHz solar flux. The ray paths are calculated on specifying the frequency, mode, range of elevation angles, and range of azimuth angles from the great circle direction. The current program uses a combination of the Penn State MKIEandFregion models and the Mitra-RoweDandEregion model. Application of the technique to the prediction of satellite to ground propagation and calculation of oblique incidence propagation paths and absorption are described. The implications of the study to the development of the next generation of ionospheric models are discussed.

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Antennas and Propagation, IEEE Transactions on  (Volume:23 ,  Issue: 1 )