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Convergence Zone

  • US 20130021198A1
  • Filed: 01/05/2012
  • Published: 01/24/2013
  • Est. Priority Date: 01/05/2011
  • Status: Active Grant
First Claim
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1. An apparatus for calculating the location of a receiver in a satellite navigation system, the apparatus being arranged to calculate a location of the receiver by means of an algorithm that utilises an estimate of receiver location and/or an estimate of absolute time, the apparatus being arranged to perform the calculation in such a way as to extend a convergence zone within which the algorithm is capable of generating the correct location for the receiver despite an error in the estimate(s).

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