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Method for estimating the geographical latitude, longitude and elevation of a mobile electronic telecommunication device (TD)

  • US 8,521,184 B2
  • Filed: 11/25/2011
  • Issued: 08/27/2013
  • Est. Priority Date: 11/25/2011
  • Status: Active Grant
First Claim
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1. A method for estimating the geographical latitude, longitude and elevation of a mobile electronic telecommunication device (TD), the method comprising:

  • drawing randomly multiple sets of three responses;

    drawing of responses include the time of the Ping—

    Packet Internet Groper—

    and that of the response;

    performing signal analysis of said responses; and

    the distance between the TD and the responder based on the round-trip-time of each response;

    generating from each set of responses a possible location (x, y, and z coordinates) of the TD;

    generating a signal quality factor;

    estimating the possible location for the mobile device;

    generating statistical information from the set of generated possible locations;

    selecting the most accurate location of the TD based on predetermined statistical parameters;

    performing statistical analysis on the collected statistical information to determine whether the TD is stationary or not;

    determining the velocity and acceleration if the telecommunication device is not stationary.

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