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Portable base station network for local differential GNSS corrections

  • US 9,903,953 B2
  • Filed: 02/05/2016
  • Issued: 02/27/2018
  • Est. Priority Date: 11/19/2010
  • Status: Active Grant
First Claim
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1. A positioning system for differentially computing a location of a rover unit with a differential Global Navigation Satellite System (GNSS) including a master base station with a master base GNSS antenna, a master base GNSS receiver coupled to the base GNSS antenna and a master base communication system including a master base transmitter;

  • and a secondary base station with a secondary base GNSS antenna, a secondary base GNSS receiver coupled to the secondary base GNSS antenna and a secondary base communication system including a secondary base transmitter;

    the positioning system including a computer system configured to;

    calculate a position offset corresponding to an offset between differential corrections created by the master base station and the secondary base station;

    transmit the position offset to the rover unit as the rover unit transitions from a coverage area for one of the master and secondary base station to a coverage area for the other one of the master and secondary base station; and

    cause the rover unit to correct a rover GNSS-defined position with the position offset.

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