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Propagation predictions and studies using a ray tracing program combined with a theoretical ionospheric modelRadio 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 MKI E and F region models and the Mitra-Rowe D and E region 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.
Document ID
19750034502
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Lee, M. K.
(Clover Communications, Inc. Princeton Junction, N.J., United States)
Nisbet, J. S.
(Pennsylvania State University University Park, Pa., United States)
Date Acquired
August 8, 2013
Publication Date
January 1, 1975
Publication Information
Publication: IEEE Transactions on Antennas and Propagation
Volume: AP-23
Subject Category
Communications And Radar
Accession Number
75A18574
Funding Number(s)
CONTRACT_GRANT: N00014-67-A-0385-0017
CONTRACT_GRANT: NGL-39-009-003
CONTRACT_GRANT: NGL-39-009-002
Distribution Limits
Public
Copyright
Other

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