Article: Global positioning system accuracy increased. (Technical News).

Researchers working with global positioning systems (GPS) have improved the accuracy of locating a moving object to within 3.5 centimeters (1.4 inches). Previous accuracy was in the range of 20 centimeters (7.9 inches).

High Accuracy-Nationwide Differential Global Positioning Systems (HA-NDGPS), the next step in the ...

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