Results 31 to 40 of about 50,279 (277)

Characteristics of Magnetic Fields Induced by the Wake of an Underwater Vehicle

open access: yesApplied Sciences, 2022
Underwater vehicles generate hydrodynamic wakes within a large area that last for a longtime during navigation, thus generating induced magnetic fields, and these are of great significance for detecting and tracking underwater vehicles.
Bo Huang   +6 more
doaj   +1 more source

Identification of Risks in the Course of Managing the Deep Sea Archeological Projects Using Marine Robotics [PDF]

open access: yes, 2016
An analysis is conducted of the basic risks that occur when managing the projects of deep-sea archeological research. It is proposed to consider possible risks of such projects in the form of a general set of risks that contains subsets of the identified
Nadtoshy, A. (Anatoly)
core   +2 more sources

An evaluation of path-planning methods for autonomous underwater vehicle based on terrain-aided navigation

open access: yesInternational Journal of Advanced Robotic Systems, 2019
This article presents a comparison of different path-planning algorithms for autonomous underwater vehicles using terrain-aided navigation. Four different path-planning methods are discussed: the genetic algorithm, the A* algorithm, the rapidly exploring
Zheng Cong   +6 more
doaj   +1 more source

Electric sensing for underwater navigation [PDF]

open access: yes, 2018
Underwater navigation in turbid water for exploration in catastrophic conditions or navigation in confined unstructured environments is still a challenge for robotics. In these conditions, neither vision nor sonar can be used. Pursuing a bio-inspired approach in robotics, one can seek solutions in nature to solve this difficult problem. Several hundred
Frédéric Boyer, Vincent Lebastard
openaire   +1 more source

Towards Model-Aided Navigation of Underwater Vehicles [PDF]

open access: yesModeling, Identification and Control, 2007
This paper reports the development and preliminary experimental evaluation of a model-aided inertial navigation system (INS) for underwater vehicles.
Øyvind Hegrenæs   +2 more
doaj   +1 more source

Analysis of Recreational Diving Training According to the CMAS International Diving Confederations, SSI Diving School System and American NAUI and PADI Associations

open access: yesScientific Journal of Gdynia Maritime University, 2023
The article describes and compares various methods of obtaining basic diving licences on the example of CMAS international diving confederations, the SSI diving school system and two American diving associations, NAUI and PADI. According to Divers Alert
Jakub Ratajczak   +2 more
doaj   +1 more source

Collision Avoidance of Moving Obstacles for Underwater Robots [PDF]

open access: yesJournal of Systemics, Cybernetics and Informatics, 2006
A fuzzy logic for autonomous navigation of underwater robot is proposed in this paper. The VFF(Virtual Force Field) algorithm, which is widely used in the field of mobile robot, is modified for application to the autonomous navigation of underwater robot.
KWON KYOUNG YOUB   +3 more
doaj  

An Underwater SLAM System using Sonar, Visual, Inertial, and Depth Sensor

open access: yes, 2019
This paper presents a novel tightly-coupled keyframe-based Simultaneous Localization and Mapping (SLAM) system with loop-closing and relocalization capabilities targeted for the underwater domain.
Li, Alberto Quattrini   +2 more
core   +1 more source

Accurate position tracking with a single UWB anchor

open access: yes, 2020
Accurate localization and tracking are a fundamental requirement for robotic applications. Localization systems like GPS, optical tracking, simultaneous localization and mapping (SLAM) are used for daily life activities, research, and commercial ...
Beltrame, Giovanni   +4 more
core   +1 more source

MAGTWIST: A Magnetically‐Driven Rotary Actuator Using a Traveling‐Wave With Integrated Stiffness Tunability

open access: yesAdvanced Functional Materials, EarlyView.
MAGTWIST: A compact magnetic rotary actuator, enabling smooth, stepless rotation, and on‐demand locking. Inspired by peristalsis, a soft polymer belt generates a traveling‐wave, enabling 270° rotation when heated. Cooling stiffens the belt, locking it in position and enabling it to withstand high loads.
Simon Frieler   +3 more
wiley   +1 more source

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