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The effect of ionospheric tilt on radio direction finding position estimates

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Author
Lunde, Roger Kenneth.
Date
1972-03
Advisor
Read, Robert R.
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Abstract
It is generally accepted that the ionosphere tilts; that is to say , an isoionic layer is not at constant height above the surface of the earth. Ionospheric tilt has the effect of deflecting a radio ray out of its great­ circle plane and returning it to earth at an angle not that of the true bearing from a receiver to a transmitter. The magnitude of error introduced by this effect on radio direction finding (RDF) position estimates was studied in this paper. A model assigning a tilt bias of less than three degrees to each RDF station bearing was constructed. Analysis of a six-station RDF network revealed that this amount of tilt has negligible effect on point estimates of location and their confidence regions.
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This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.
URI
http://hdl.handle.net/10945/16102
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