Portable reference station for local differential GPS corrections
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United States of America Patent
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Jul 15, 2008
Grant Date -
Apr 19, 2007
app pub date -
Oct 14, 2005
filing date -
Oct 14, 2005
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A method and system for local computation of information to improve accuracy in a differential Global Navigation Satellite Systems (GNSS). The method comprising: determining a current location of a reference receiver; comparing the current location with at least one stored location; if a resultant of the comparing is less than a selected threshold, identifying as a reference location the at least one stored location, which is closest to the current location; otherwise establishing the current location as the reference location and storing the current location. The method also includes computing the information from signals from one or more GNSS satellites the based on the reference location; and transmitting the information for reception by one or more remote receivers.
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