Results 31 to 40 of about 847,616 (208)

Validation of Underwater Sensor Package Using Feature Based SLAM

Sensors, 2016
Robotic vehicles working in new, unexplored environments must be able to locate themselves in the environment while constructing a picture of the objects in the environment that could act as obstacles that would prevent the vehicles from completing their
Christopher Cain, Alexander Leonessa
doaj   +1 more source

Magnetic Gradient Tensor Positioning Method Implemented on an Autonomous Underwater Vehicle Platform

Journal of Marine Science and Engineering, 2023
Underwater magnetic surveying serves as the fundamental prerequisite for detecting sensitive underwater targets and magnetically susceptible submerged objects.
Fanzong Zeng, Xueting Zhang, Jingbiao Liu, Hao Li, Zhengjing Zhu, Shihe Zhang   +5 more
doaj   +1 more source

DRIVE‐SAFE: Data‐Driven Robustness and Informed Validation for Evolving Specifications via Formal Evaluation

Advanced Robotics Research, EarlyView.
DRIVE‐SAFE evaluates learning‐based, black‐box autonomous driving policies against evolving temporal safety requirements using Signal Temporal Logic robustness metrics. It aggregates distributional robustness measures with domain‐informed weights to guide iterative retraining.
Kristy Sakano, Jianyu An, Dinesh Manocha, Huan Xu   +3 more
wiley   +1 more source

Fixed-Time Event-Triggered Control for Distributed Unmanned Underwater Vehicles

Journal of Marine Science and Engineering
This paper investigates the problem of fixed-time event-triggered consensus control for distributed unmanned underwater vehicle systems subject to communication and energy constraints. The systematic integration control framework is developed, where each
Xiaoling Liang, Jie Li, Dan Bao
doaj   +1 more source

Terahertz Channel Modeling, Estimation and Localization in RIS‐Assisted Systems

Advanced Electronic Materials, EarlyView.
Reconfigurable intelligent surfaces have become a recent intensive research focus. Based on practical applications, channel strategies for RIS‐assisted terahertz wireless communication systems are categorized into three different types: channel modeling, channel estimation, and channel localization.
Hongjing Wang, Weipeng Wang, Xuan Cong, Shiyu Wang, Gao Li, Sen Gong, Lin Huang, Hongxin Zeng, Yaxin Zhang, Ziqiang Yang   +9 more
wiley   +1 more source

Modelling tunnel thrusters for autonomous underwater vehicles [PDF]

, 2008
With 900 Autonomous Underwater Vehicles (AUVs) required over the next decade (Newman et al., 2007) existing survey-style AUVs need improved utilization factors.
Stevenson, P., Hearn, G.E., Alistair Palmer, Peter Stevenson, Grant E. Hearn, Palmer, A.   +5 more
core   +3 more sources

Autonomous Marine Vehicle Operations—2nd Edition

Journal of Marine Science and Engineering
In recent years, the field of autonomous marine vehicles has undergone remarkable advancements, with unmanned surface vehicles (USVs) and unmanned underwater vehicles (UUVs) demonstrating transformative potential for oceanographic exploration and marine ...
Xiao Liang, Rubo Zhang, Xingru Qu
doaj   +1 more source

Study on Key Performance and Operational Applications of Underwater Acoustic Countermeasure UUV

水下无人系统学报, 2023
Underwater acoustic countermeasure equipment can carry out soft killing against acoustic homing weapons and improve the survivability of naval ships in naval warfare.
Xiangyuan ZHANG, Xiaolong DONG
doaj   +1 more source

Energy Storage Systems for Unmanned Underwater Vehicles

Underwater Technology, 2003
The power source of an underwater vehicle is the main component that determines its range of travel and the tasks that it can perform. Until recently, the choice of practical power sources for most applications has been limited to lead―acid and silver―zinc batteries are a well-established technology and are available at low cost. However, they have a
Abu-Sharkh, S.M., Griffiths, G.
openaire   +3 more sources

Optimizing Strategies for Non‐Invasive Prospection of Settlements in the Intertidal Zone: A Case Study From the Centre of the Drowned Medieval Village of Tolsende (Scheldt Estuary, the Netherlands)

Archaeological Prospection, EarlyView.
ABSTRACT Medieval and early modern drowned villages in the intertidal zone of the Scheldt estuary (the Netherlands) constitute intriguing yet largely understudied components of north‐western Europe's underwater cultural heritage. Despite their high archaeological potential as time capsules of past settlement landscapes, research has remained limited ...
Jan Trachet, Sarah Bäumler, Stefan Krojer, Jeroen Verhegge, Wim De Clercq, Philippe De Smedt, Wouter H. Maes, Bente S. Majchczack, Immo Trinks, Dennis Wilken   +9 more
wiley   +1 more source