×

Object location

  • US 6,587,079 B1
  • Filed: 02/11/2002
  • Issued: 07/01/2003
  • Est. Priority Date: 05/14/1999
  • Status: Expired due to Term
First Claim
Patent Images

1. A method of locating the position of an object which provides identifying signals, using a receiver array comprising a reference receiver site and at least three auxiliary receiver sites which are not on a line of sight with the reference receiver site, the method comprising the steps of:

  • receiving the identifying signals from the object at each receiver site;

    receiving global navigation system signals from a global navigation system at each receiver site, and each receiver site using the received global navigation system signals for providing timing signals;

    providing a clock at each receiver site for providing clock signals;

    combining the timing signals with the clock signals to provide a timing reference signal at each receiver site;

    determining a time difference between receiving the identifying signals and the timing reference signal at each receiver site;

    transmitting data signals to the reference receiver site which are indicative of the determined time differences at each auxiliary receiver site; and

    calculating the position of the object using the transmitted data signals and a time difference determined at the reference receiver site.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×