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Global positioning system (GPS) receiver and method of determining location of GPS receiver

  • US 20100149037A1
  • Filed: 11/23/2009
  • Published: 06/17/2010
  • Est. Priority Date: 12/15/2008
  • Status: Active Grant
First Claim
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1. A Global Positioning System (GPS) receiver, comprising:

  • a GPS receiving unit configured to receive navigation data from at least one visible satellite;

    a decoder configured to decode the received navigation data to extract time and almanac information from the decoded navigation data;

    a database configured to store satellite disposition information;

    a satellite location determining unit configured to select at least one visible satellite candidate using the time information and the satellite disposition information, and to determine locations-in-space of the at least one visible satellite candidate with the almanac information; and

    a navigation filter configured to calculate a pseudo-ranges from the at least one visible satellite and the selected at least one visible satellite candidate using the locations-in-space of the at least one visible satellite and the selected at least one visible satellite candidate, and to determine a location of the GPS receiver using the calculated pseudo-ranges.

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