Global positioning system and dead reckoning (GPSandDR) integrated navigation system
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United States of America Patent
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Aug 7, 2012
Grant Date -
Feb 4, 2010
app pub date -
Jun 30, 2009
filing date -
Jul 2, 2008
priority date (Note) -
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Abstract
A global positioning system and dead reckoning (GPS&DR) integrated navigation system includes a GPS receiver coupled to a moving object for periodically generating GPS navigation information of said moving object, a DR system coupled to said moving object for periodically calculating DR navigation information of said moving object, and a filter coupled to said GPS receiver and said DR system for periodically calculating navigation information of said moving object, wherein said filter gets observation information by integrating said GPS navigation information and said DR navigation information according to a weight value of said GPS navigation information and a weight value of said DR navigation information, and calculates a current navigation information by integrating said observation information with previous navigation information from a plurality of previous cycles.
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