Methods and apparatuses for GPS coordinates extrapolation when GPS signals are not available
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United States of America Patent
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Dec 21, 2010
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N/A
app pub date -
Nov 4, 2008
filing date -
Nov 4, 2008
priority date (Note) -
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Abstract
Systems and methods for extrapolating GPS coordinates beyond line of sight are disclosed. A coordinate extrapolation system (CES) can include a memory, a processor, and a GPS receiver. The CES can receive GPS signals and determine GPS coordinates corresponding to a location. If GPS signals are unavailable, the CES models the surface of the earth and extrapolates the GPS coordinates corresponding to the location at which GPS signals are unavailable. Methods for extrapolating the GPS coordinates and calibrating the CES are also disclosed.
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