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Transmitter location searching system

  • US 5,058,200 A
  • Filed: 06/04/1990
  • Issued: 10/15/1991
  • Est. Priority Date: 06/04/1990
  • Status: Expired due to Fees
First Claim
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1. A transmitter location searching method useable in a multipath transmission environment, comprising the steps of:

  • (a) geometrically partitioning a monitored area into a plurality of cells;

    (b) receiving at the base stations a burst transmission from a transmitter to be located;

    (c) determining minima of a total cost function at the center of each cell in response to receipt of said burst transmission;

    (d) choosing the cell with the smallest of the plurality of total cost functions as a new candidate cell for locating said transmitter;

    (e) dividing the new candidate cell into smaller cells;

    (f) determining minimum costs for each corner of the smaller cells; and

    (g) iterating the process of steps (c)-(f) until a dimension of a new candidate cell is smaller than a selected geometric threshold.

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