Method and apparatus for locating mobile receivers using a wide area reference network for propagating ephemeris

  • US 6,813,560 B2
  • Filed: 03/19/2003
  • Issued: 11/02/2004
  • Est. Priority Date: 07/13/2000
  • Status: Expired due to Term
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First Claim
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1. A method of locating position, comprising:

  • receiving satellite telemetry data of a plurality of satellites in a constellation at a server;

    obtaining an approximate position of a mobile device at the server;

    deriving a pseudo-range model from the satellite telemetry data and the approximate position at the server;

    propagating the pseudo-range model from the server to the mobile device;

    acquiring a plurality of satellite signals at the mobile device using the pseudo-range model; and

    computing position of the mobile device using the plurality of satellite signals.

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