POSITIONING SYSTEM AND METHOD FOR USE IN A VEHICLE NAVIGATION SYSTEM
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United States of America Patent
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Issued Date -
Dec 25, 2014
app pub date -
Sep 11, 2014
filing date -
Aug 25, 2009
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Abandoned
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Abstract
A positioning method for use in a vehicle navigation or mapping system is disclosed, and a system implementing such a method. The method comprises obtaining one or more sets of sensor measurement data from at least one sensor located on or in a vehicle, each set of sensor measurement being indicative of the distance of objects in an environment around the vehicle from the sensor, and each set of sensor measurement data comprising data obtained from a range of positions in a time or distance window along the direction of travel of the vehicle. A correlation procedure is performed correlating the one or more sets of sensor measurement data with stored reference sensor measurement data, and a relative position of the vehicle against stored location data associated with the stored reference sensor measurement data is determined in dependence on the correlation procedure.
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