Latest in Science

Image credit:

DARPA is building acoustic GPS for submarines and UUVs

It will utilize undersea sounds instead of satellite feeds.
Share
Tweet
Share

Sponsored Links

For all the benefits that the Global Positioning System provides to landlubbers and surface ships, GPS signals can't penetrate seawater and therefore can't be used by oceangoing vehicles like submarines or UUVs. That's why DARPA is creating an acoustic navigation system, dubbed POSYDON (Positioning System for Deep Ocean Navigation), and has awarded the Draper group with its development contract.

The space-based GPS system relies on a constellation of satellites that remain in a fixed position relative to the surface of the Earth. The GPS receiver in your phone or car's navigation system triangulates the signals it receives from those satellites to determine your position. The POSYDON system will perform the same basic function, just with sound instead. The plan is to set up a small number of long-range acoustic sources that a submarine or UUV could use to similarly triangulate its position without having to surface.

The system should be ready for sea trials by 2018. It will initially be utilized exclusively for military and government operations but, like conventional GPS before it, will eventually be opened up to civilians as well.

All products recommended by Engadget are selected by our editorial team, independent of our parent company. Some of our stories include affiliate links. If you buy something through one of these links, we may earn an affiliate commission.
Comment
Comments
Share
Tweet
Share

Popular on Engadget

Elon Musk warns that Tesla's 'Battery Day' tech is two years away

Elon Musk warns that Tesla's 'Battery Day' tech is two years away

View
Microsoft’s Bethesda deal: Great for Game Pass, troubling for exclusives

Microsoft’s Bethesda deal: Great for Game Pass, troubling for exclusives

View
Microsoft keeps the same price for its new wireless Xbox controllers

Microsoft keeps the same price for its new wireless Xbox controllers

View
NASA's Mars 2020 rover passes its driving test

NASA's Mars 2020 rover passes its driving test

View
Logitech’s new MX Anywhere 3 mouse has buttons to control Zoom calls

Logitech’s new MX Anywhere 3 mouse has buttons to control Zoom calls

View

From around the web

Page 1Page 1ear iconeye iconFill 23text filevr