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Position location using broadcast analog television signals

  • US 6,559,800 B2
  • Filed: 01/22/2002
  • Issued: 05/06/2003
  • Est. Priority Date: 02/02/2001
  • Status: Expired due to Term
First Claim
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1. A method for determining the position of a user terminal, comprising:

  • receiving, at the user terminal, a broadcast analog television signal having a periodic component; and

    correlating the broadcast analog television signal with a predetermined reference signal based on the periodic component, 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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