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GNSS signal processing methods and apparatus

  • US 7,755,542 B2
  • Filed: 03/07/2007
  • Issued: 07/13/2010
  • Est. Priority Date: 03/07/2006
  • Status: Active Grant
First Claim
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1. A method of processing a set of GNSS signal data received from multiple satellites at multiple reference stations, comprising:

  • a. for each reference station,applying to the GNSS signal data a station geometry filter to estimate values for local states representing parameters unique to that reference station and for common states representing parameters common to all reference stations,providing values for the common states and their covariance to a master filter, andpreparing updated estimates for the local states when updated values for the common states are provided by the master filter, andb. applying to the values for the common states and their covariances the master filter to estimate updated values for the common states, and to provide the updated values to the station geometry filters.

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