Results 21 to 30 of about 1,933 (184)

Reinforcement learning for autonomous underwater vehicles (AUVs): navigating challenges in dynamic and energy-constrained environments

Robotics: Integration, Manufacturing and Control
Autonomous Underwater Vehicles (AUVs) are essential for underwater exploration, inspection, and environmental surveillance. Nevertheless, navigation, obstacle avoidance, and energy efficiency are greatly hindered by the ever-changing underwater ...
Mohab M. Eweda, Karim ElNaggar
doaj   +1 more source

Development status and key technologies of deep-sea towing autonomous underwater vehicles

Zhongguo Jianchuan Yanjiu
Towing autonomous underwater vehicles (AUVs) have emerged as a transformative paradigm in ocean exploration, offering distinct advantages over conventional AUVs by deploying external payloads such as hydrophone arrays, magnetometers, and seismic sensors.
Guanyu LU, Tiedong ZHANG, Zhenglin LI, Dapeng JIANG, Ming LEI, Wanzhen LUO   +5 more
doaj   +1 more source

Real Time Object Detection for Autonomous AUVS Using an Attention–Based Fast–Rcnn Framework

International Journal of Applied Mathematics and Computer Science
This article considers the problem of fish monitoring in an underwater environment, where many problems might occur, including occlusion, pose changes, and complexity of the scene.
Boudhane Mohcine, Toulni Hamza
doaj   +1 more source

Scanning Parametric Sediment Echosounder as Tool for Underwater Archaeological Prospection

Archaeological Prospection, EarlyView.
ABSTRACT Underwater cultural heritage 3D prospection techniques, especially for remains that are partly buried in the ground, are only very rarely available and often can only be applied with considerable technical effort. To overcome this limitation, we evaluate a methodological adaption of widely used and available single channel parametric sediment ...
Dennis Wilken, Philipp Held, Jacob Geersen, Marcel Bradtmöller, Peter Feldens, Jens Schneider v. Deimling   +5 more
wiley   +1 more source

Technology Transfer to Underwater Archaeology: The LAHKE Project at the Submerged Neolithic Site of La Marmotta

Archaeological Prospection, EarlyView.
ABSTRACT This document is a report on the field application of non‐invasive geophysical and robotic prospecting methods at the submerged Neolithic site of La Marmotta (Lake Bracciano, Italy), within the LAHKE (LAke Heritage Knowledge and Exploration) project; the study focuses on the practical validation, adaptation and transfer of existing ...
dell' Erba Ramiro, Cupertino Giacomo, Cipollini Angelo, Luciano Blasi, Quattrucci Luca   +4 more
wiley   +1 more source

Optimization of the Energy Consumption of Depth Tracking Control Based on Model Predictive Control for Autonomous Underwater Vehicles

Sensors, 2019
For long-term missions in complex seas, the onboard energy resources of autonomous underwater vehicles (AUVs) are limited. Thus, energy consumption reduction is an important aspect of the study of AUVs.
Feng Yao, Chao Yang, Mingjun Zhang, Yujia Wang   +3 more
doaj   +1 more source

Performance Optimization of Underwater Communication Links at Different Ranges for AIS Relay to AUV

Applied Sciences, 2022
Autonomous Underwater Vehicles (AUVs) are becoming increasingly popular for large number of civil and military applications, such as environmental monitoring, oceanography, archaeology, or mine warfare.
Stephane Imbert, Christophe Laot, Abdel-Ouahab Boudraa, Jean-Jacques Szkolnik   +3 more
doaj   +1 more source

A novel approach for in situ benthic habitat characterization

Limnology and Oceanography: Methods, EarlyView.
Abstract Habitat heterogeneity is a key driver of temporal and spatial variability of subtidal marine benthic biodiversity. However, this makes it a challenging environment in which to measure and quantify the factors driving biodiversity in a consistent manner.
Ryan J. W. Mathews, David K. A. Barnes, Simon A. Morley, Gareth Flint, Lloyd S. Peck   +4 more
wiley   +1 more source

Towards Arctic AUV Navigation [PDF]

IFAC-PapersOnLine, 2018
Abstract The navigational drift for Autonomous Underwater Vehicles (AUVs) operating in open ocean can be bounded by regular surfacing. However, this is not an option when operating under ice. To operate effectively under ice requires an on-board navigation solution that does not rely on external infrastructure.
Salavasidis G., Munafo' A., Harris C. A., McPhail S. D., Rogers E., Phillips A. B.   +5 more
openaire   +2 more sources

Enabling Under Ice Glider Operations: A Backseat Driver Approach

Journal of Field Robotics, EarlyView.
ABSTRACT Polar Oceans are key locations for forcing global ocean circulation, influencing both global climate and biogeochemical cycles. Due to restricted access to these seasonally and perennially ice‐covered regions, these areas are severely undersampled.
Yaomei Wang, Benjamin Allsup, Georgios Salavasidis, Stephen Woodward, Adeniyi Adenaya, Mike Smart, Alexis Johnson, Felipe Marques Dos Santos, Jake Ludgate, Daniel Matterson, Alvaro Lorenzo, J. Alexander Brearley, Alexander Brian Phillips   +12 more
wiley   +1 more source