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Method and apparatus for generating and using a regional-terrain model

  • US 7,739,032 B2
  • Filed: 03/21/2006
  • Issued: 06/15/2010
  • Est. Priority Date: 03/21/2006
  • Status: Active Grant
First Claim
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1. An apparatus for computing position, comprising:

  • a receiver operable to obtain pseudorange measurements at a location;

    a terrain module operable to contain a regional-terrain model, the regional-terrain model including altitude information associated with a modeled region, wherein the modeled region defines its boundary as a function of a range of altitudes, and wherein the location is within boundary; and

    a processor configured toobtain from the regional-terrain model defined by the boundary as the function of a range of altitudes, the altitude information, andcompute a position of the location as a function of the pseudorange measurements and the altitude information.

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