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POSITION DETERMINATION BASED ON PROPAGATION DELAY DIFFERENCES OF MULTIPLE SIGNALS RECEIVED AT MULTIPLE SENSORS

  • US 20110144941A1
  • Filed: 12/16/2009
  • Published: 06/16/2011
  • Est. Priority Date: 12/16/2009
  • Status: Active Grant
First Claim
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1. A method, comprising:

  • receiving first and second signals from corresponding first and second transmitters, at each of first and second sensors; and

    determining at least two-dimensional coordinates from a phase difference of arrival of the first signal at the first and second sensors, a phase difference of arrival of the second signal at the first and second sensors, a distance between the first and second transmitters, and a distance between the first and second sensors;

    wherein the determining is performed within one or more of circuitry and a suitably programmed computer system.

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