Long-endurance maritime surveillance with ocean glider networks
Nott, Bradley J.
Joseph, John E.
MetadataShow full item record
This study examines the integration of ocean glider Unmanned Surface Vehicles (USVs) and Unmanned Undersea Vehicles (UUVs) in support of wide-area oceanographic and acoustic sampling. These collaborative systems could enable the U.S. Navy to conduct multi-month unmanned maritime surveillance. Optimal sensor position in the water column and persistence are critical requirements to reduce surface expressions of such a network. An experiment was conducted in Monterey Bay to evaluate underwater gliders as mobile passive acoustic sensing platforms. Acoustic propagation modeling was used to plan experiment geometry, predict transmission loss (TL), and estimate acoustic communications performance with a USV. A medium frequency acoustic source was deployed at a range of 5.5 km from a receiver on board a glider conducting a 1000 m dive to demonstrate that a glider can adapt to the local environment to exploit more reliable propagation paths. Results demonstrate that gliders are effective mobile platforms to support persistent acoustic sensing. The glider received transmitted signals at levels in close agreement with TL predictions. Signals were received while the glider was in motion, and reception improved during a quiet deep loiter. Given the depths, ranges, and environmental conditions studied, research and modeling suggest sufficient acoustic communication performance to promote connectivity of the proposed network.
RightsThis publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.
Showing items related by title, author, creator and subject.
Beach, Joseph N. (Monterey, California. Naval Postgraduate School, 2012-06);This thesis examines the possibility of integrating an acoustic modem onto a Wave Glider with the goal of providing a bidirectional communications gateway for submerged sensors, platforms, and networks. The Wave Glider ...
Joseph, John (2018-04-17);This proposed initiative focuses on developing an integrated UUV/USV multi-glider acoustic and oceanographic sensing system that has potential to provide long-endurance, wide-area environmental sensing and surveillance of ...
Bade, Christopher M. (Monterey, California. Naval Postgraduate School, 2017-09);This study tests the feasibility of using a system of integrated unmanned underwater vehicles (UUVs) and unmanned surface vehicles (USVs) in support of long-endurance oceanographic characterization and acoustic source ...