How GPS Really Works (and What Happens If It Fails)
9:05
MSNNot What You Think Official
How GPS Really Works (and What Happens If It Fails)
Every GPS fix starts with satellites broadcasting the time, and your phone calculating distance at the speed of light. Four satellites give you a precise point on Earth, but even the tiniest timing error can shift your location by miles. The Coast Guard hacked this system with Differential GPS, forcing the U.S. to finally unlock full accuracy ...
5 个月之前
相关产品
GPS Tracking Unit
GPS Navigation Device
Differential GPS
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