Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
April 17, 2012
Patent Application Number
12367027
Date Filed
February 6, 2009
Patent Citations Received
Patent Primary Examiner
Patent abstract
A method for estimating a precise position of a user device from signals from a low earth orbit (LEO) satellite includes receiving at least one carrier signal at a user device, each carrier signal being transmitted a distinct LEO satellite. The user device processes the carrier signals to obtain a first carrier phase information. The user device recalls an inertial position fix derived at an inertial reference unit. The user device derives a position of the user device based on the inertial position fix and the first carrier phase information.
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