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Reducing elevation error with environmental pressure anomaly compensation

  • US 9,823,068 B2
  • Filed: 02/10/2016
  • Issued: 11/21/2017
  • Est. Priority Date: 06/12/2012
  • Status: Active Grant
First Claim
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1. A computer-implemented method for determining an elevation of a mobile device, comprising:

  • estimating a location of the mobile device;

    estimating an atmospheric pressure associated with the mobile device at a server based on data indicative of atmospheric pressure as measured by a pressure sensor within the mobile device; and

    generating the elevation of the mobile device based on the atmospheric pressure associated with the mobile device and reference data indicative of an absolute elevation reference,the absolute elevation determined based on the estimated location of the mobile device and elevation data obtained from a reference map wherein the reference map is generated using terrain elevation data obtained from a plurality of datasets.

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