UNDERWATER GPS

Overview

Underwater exploration has been largely held back due to the inability to use GPS to accurately track an underwater vehicle's location. GPS is ineffective due to the poor propagation of electromagnetic waves beneath the ocean surface which necessitates a constant visual connection to maintain a sense of direction. Our system utilizes an array of acoustic receivers known as hydrophones. The array of hydrophones mounted on the underwater vehicle communicates with an underwater antenna connected to a topside GPS. The hydrophones are connected to the Multichannel FPGA Modem which is programmed with an angle of arrival algorithm. Using the angle of arrival algorithm, the underwater vehicle can self-localize in relation to the topside control station and can assign itself a GPS location. 

Community Benefit

This interlinked system can be used to plan remote guided missions using accurate GPS location data for exploration, mapping, and rescue without the need for manual input that relies solely upon visual confirmation to ensure the plotted routes are carried out correctly.  This system can play a role in intelligently surveying one of earth's most unknown habitats.

Team Members

• Sumer Roberson
• Kennerth Steakin
• Travis Nykanen
• Alicia Nykanen

Sponsors 

Center for Connected Autonomy and Artificial Intelligence