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System and method for determining the geolocation of a transmitter

DC
  • US 5,719,584 A
  • Filed: 09/03/1996
  • Issued: 02/17/1998
  • Est. Priority Date: 09/03/1996
  • Status: Expired due to Term
First Claim
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1. A system for locating a transmitting unit relative to plural fixed receiving locations, comprising:

  • (A) a mobile unit transmitting an RF signal;

    (B) plural fixed units, each of said fixed units receiving said transmitted signal and each fixed unit comprising;

    (i) means for determining the angle of arrival of said transmitted signal;

    (ii) means for determining the time-of-arrival of said transmitted signal;

    (C) determination means for determining the location of the mobile unit based on the angle of arrival and the time of arrival of the transmitted signal at each of the fixed units.

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