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

Amazon Prime members get free one-hour grocery pickups at Whole Foods

Amazon Prime members get free one-hour grocery pickups at Whole Foods

View
Jabra's ANC update for the Elite 75t earbuds is now available

Jabra's ANC update for the Elite 75t earbuds is now available

View
Apple pulls TV Remote app now that it's built into iOS

Apple pulls TV Remote app now that it's built into iOS

View
The 44mm Apple Watch Series 6 falls to $400 at Amazon

The 44mm Apple Watch Series 6 falls to $400 at Amazon

View
Apple iPad Air (2020) review: Who needs the iPad Pro?

Apple iPad Air (2020) review: Who needs the iPad Pro?

View

From around the web

Page 1Page 1ear iconeye iconFill 23text filevr