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Satellite and local system position determination

  • US 20070040744A1
  • Filed: 07/30/2004
  • Published: 02/22/2007
  • Est. Priority Date: 07/30/2004
  • Status: Active Grant
First Claim
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1. A method for determining a position from transmitted signals, the method comprising:

  • (a) measuring at least a first range from first signals for a global navigation satellite system;

    (b) measuring at least a second range from second signals for a local positioning system; and

    (c) determining the position from the measurements of (a) and (b);

    wherein the measurements of the second signals for the local positioning system have a code phase range accuracy better than one wavelength of a carrier of the first signals from the global navigation satellite system.

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