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Position location using ghost canceling reference television signals

  • US 20030142017A1
  • Filed: 01/28/2003
  • Published: 07/31/2003
  • Est. Priority Date: 02/02/2001
  • Status: Active Grant
First Claim
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1. A method for determining the position of a user terminal, comprising:

  • generating a correlation reference signal based on known characteristics of a broadcast analog television ghost canceling reference signal;

    receiving, at the user terminal, a broadcast analog television signal comprising the ghost canceling reference signal; and

    correlating the broadcast analog television signal with the correlation reference signal, thereby producing a pseudorange; and

    wherein the location of the user terminal is determined based on the pseudorange and a location of the transmitter of the broadcast analog television signal.

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