Flying blind: How a drone can soar without using GPS

Drones use GPS to find their way without a pilot. But GPS signals can be easily blocked by tall skyscrapers or trees — leaving drones lost.

Now researchers at the University of Washington have developed a new method that gives aircraft a backup system in case GPS fails: An antenna on the ground that can tell a drone where it is. The team successfully tested their system in June.

For more information, view the full article on the University of Washington Website here. 

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