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Method and apparatus for updating transformation information parameters used in global navigation satellite system

  • US 8,368,588 B2
  • Filed: 10/29/2010
  • Issued: 02/05/2013
  • Est. Priority Date: 11/26/2007
  • Status: Active Grant
First Claim
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1. A method for updating a set of transformation information parameters used in a global navigation satellite system (GNSS), comprising:

  • obtaining at least one satellite navigation information for a satellite; and

    updating the set of transformation information parameters according to the obtained satellite navigation information;

    wherein the set of transformation information parameters is used to calculate coordinate transformation between a first coordinate system and a second coordinate system, and the step of updating the set of transformation information parameters according to the obtained satellite navigation information comprises;

    deriving a computed satellite data corresponding to a time point at the first coordinate system according to the obtained satellite navigation information;

    generating a converted satellite data by converting a satellite data corresponding to the time point at the second coordinate system into the converted satellite data at the first coordinate system using the set of transformation information parameters; and

    comparing the converted satellite data with the computed satellite data to update the set of transformation information parameters.

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