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Method for measuring distance and position using spectrum signal, and an equipment using the method

  • US 6,459,402 B1
  • Filed: 08/17/2000
  • Issued: 10/01/2002
  • Est. Priority Date: 06/27/2000
  • Status: Expired due to Term
First Claim
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1. A method for measuring distance comprising:

  • a first step to create a delay profile from a signal wave received from a signal transmitting station;

    a second step to detect a startup timing of the delay profile as reference timing, wherein the startup timing corresponds to a timing when a correlation value of the delay profile is equal to a predetermined threshold value; and

    a third step to detect a timing delay by a predetermined value behind the reference timing as a receive timing for the signal wave;

    wherein the distance between the signal transmitting station and signal receiving station is measured from a difference between a transmitting timing of said signal transmitting station and the receive timing.

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