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Systems and methods for improved atmospheric monitoring and GPS positioning utilizing GNSS tomographic refractivity

  • US 10,545,243 B2
  • Filed: 11/10/2017
  • Issued: 01/28/2020
  • Est. Priority Date: 11/10/2017
  • Status: Active Grant
First Claim
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1. A method comprising:

  • receiving, at a processing system, and from a plurality of Global Navigation Satellite Systems (GNSS) stations, navigation data corresponding to computed positions of the plurality of GNSS stations;

    receiving, at the processing system, GNSS transmitter information comprising one or more of;

    GNSS satellite positional information;

    GNSS clock information; and

    GNSS transmission frequency information;

    determining, based at least in part on the received navigation data and the received GNSS transmitter information, ionosphere and atmosphere refractivity associated with navigation data, wherein the ionosphere and atmosphere refractivity N comprises density delay components for dry air, wet air, liquid, and ions respectively is represented by;


    N

    dry+wet+liquid+ion;

    where;

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