Chaubell, Julian and Bruno, Oscar P. and Ao, Chi O. (2009) Evaluation of EM-wave propagation in fully three-dimensional atmospheric refractive index distributions. Radio Science, 44 . RS1012. ISSN 0048-6604 http://resolver.caltech.edu/CaltechAUTHORS:20090413-104957438
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We present a novel numerical method, based on high-frequency localization, for evaluation of electromagnetic-wave propagation through atmospheres exhibiting fully three-dimensional (height, range and cross-range) refractive index variations. This methodology, which is based on localization of Rytov-integration domains to small tubes around geometrical optics paths, can accurately solve three-dimensional propagation problems in orders-of-magnitude shorter computing times than other algorithms available presently. For example, the proposed approach can accurately produce solutions for propagation of ≈20 cm GPS signals across hundreds of kilometers of realistic, three-dimensional atmospheres in computing times on the order of 1 hour in a present-day single-processor workstation, a task for which other algorithms would require, in such single-processor computers, computing times on the order of several months.
|Additional Information:||© 2009 American Geophysical Union. Received 25 April 2008; revised 7 October 2008; accepted 18 December 2008; published 28 February 2009. This work was supported in part by the Air Force Office of Scientific Research, the National Science Foundation and the National Aeronautics and Space Administration. This research was performed, in part, while Julian Chaubell held a National Research Council Research Associateship Award at Jet Propulsion Laboratory.|
|Official Citation:||Chaubell, J., O. P. Bruno, and C. O. Ao (2009), Evaluation of EM-wave propagation in fully three-dimensional atmospheric refractive index distributions, Radio Sci., 44, RS1012, doi:10.1029/2008RS003882.|
|Usage Policy:||No commercial reproduction, distribution, display or performance rights in this work are provided.|
|Deposited By:||Tony Diaz|
|Deposited On:||04 Aug 2009 20:26|
|Last Modified:||26 Dec 2012 10:57|
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