A ray-tracing technique for determining ray tubes in anisotropic media

Norman, R, Bennett, J, Dyson, P, Le Marshall, J and Zhang, K 2013, 'A ray-tracing technique for determining ray tubes in anisotropic media', IEEE Transactions on Antennas and Propagation, vol. 61, no. 5, pp. 2664-2675.


Document type: Journal Article
Collection: Journal Articles

Title A ray-tracing technique for determining ray tubes in anisotropic media
Author(s) Norman, R
Bennett, J
Dyson, P
Le Marshall, J
Zhang, K
Year 2013
Journal name IEEE Transactions on Antennas and Propagation
Volume number 61
Issue number 5
Start page 2664
End page 2675
Total pages 12
Publisher IEEE Antennas and Propagation Society
Abstract Ray-tracing techniques are commonly used for calculating the paths taken by electromagnetic waves in a medium that has an associated refractive index, such as the Earth's ionospheric plasma. Ray equations derived from Hamilton's equation are usually used to determine ray paths and ray tubes defined by tracing adjacent rays separately. There are advantages in describing ray tubes in terms of a main ray and variational rays. In this paper, equations for variational rays are derived for anisotropic inhomogeneous media such as the Earth's ionosphere. The ray-tracing technique is useful for simulating ionospheric propagation experiments, and examples are given of ground illumination as a function of ground range and frequency.
Subject Geodesy
Navigation and Position Fixing
Keyword(s) Anisotropic
geometrical optics
ionosphere
magnetic fields
DOI - identifier 10.1109/TAP.2013.2240647
Copyright notice © 2013 British Crown Copyright
ISSN 0018-926X
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Created: Mon, 19 Aug 2013, 13:19:00 EST by Catalyst Administrator
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