Results 81 to 90 of about 3,364 (224)

Controle de missão baseado na teoria de controle supervisório com aplicação a veículos subaquáticos autônomos [PDF]

open access: yes, 2015
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Engenharia de Automação e Sistemas, Florianópolis, 2015.Veículo subaquático autônomo (AUV, do inglês autonomous underwater vehicle) é uma classe ...
Battistella, Sandro
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Research on vertical air–water trans-media control of Hybrid Unmanned Aerial Underwater Vehicles based on adaptive sliding mode dynamical surface control

open access: yesInternational Journal of Advanced Robotic Systems, 2018
We address the problem of vertical air–water trans-media control of Hybrid Unmanned Aerial Underwater Vehicles in the presence of parameters uncertainty and disturbances.
Zongcheng Ma, Jinfu Feng, Jian Yang
doaj   +1 more source

sampley: A Python package for sampling visual survey data

open access: yesMethods in Ecology and Evolution, Volume 17, Issue 7, Page 2028-2038, July 2026.
Abstract Visual surveys are a common method of obtaining data for ecological studies, including studies that develop models (e.g. species distribution models). In the case of transect or non‐transect line surveys, data must often be partitioned into spatiotemporal units (i.e. samples) before being modelled.
Jonathan Syme   +4 more
wiley   +1 more source

Results of expert judgments on the faults and risks with Autosub3 and an analysis of its campaign to Pine Island Bay, Antarctica, 2009 [PDF]

open access: yes, 2009
Probabilistic risk assessment is a methodology that can be systematically applied to estimate the risk associated with the design and operation of complex systems.
Brito, Mario P., Griffiths, Gwyn
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Quantifying Southern Sea Otter (Enhydra lutris nereis) Reactions to a Quadcopter Drone in Central California

open access: yesMarine Mammal Science, Volume 42, Issue 3, July 2026.
ABSTRACT Drones are useful for wildlife research and management, but they can cause disturbance and harassment to wildlife. Sea otters (Enhydra lutris) are candidates for drone‐based observation and monitoring but are vulnerable to disturbance. No studies have evaluated drone effects on sea otter behavior, but based on prior disturbance studies, we ...
Colleen Young   +5 more
wiley   +1 more source

Autonomous homing and docking tasks for an underwater vehicle

open access: yes, 2009
This paper briefly introduces a strategy for autonomous homing and docking tasks using an autonomous underwater vehicle. The control and guidance based path following for those tasks are described in this work.
Wilson, P. A.
core  

Design of biomimetic aerial-aquatic vehicle based on soft cross-medium technology

open access: yesZhongguo Jianchuan Yanjiu
ObjectiveThis study aims to develop a concept design for an unmanned aerial-aquatic cross-medium vehicle that can fly in the air and navigate underwater, and features repeatable medium transitions and superior hydrodynamic performance.
Lei ZHANG   +4 more
doaj   +1 more source

Research status of Markov theory in unmanned systems

open access: yesZhongguo Jianchuan Yanjiu, 2018
With the development of artificial intelligence technology,the missions to be performed by unmanned systems are more and more complicated,and the systems are required to complete given missions independently in an unknown environment.
YAN Zheping   +4 more
doaj   +1 more source

Intelligent Acousto‐Electrical Metamaterials (IAM) for Sound Source Detection

open access: yesAdvanced Materials, Volume 38, Issue 36, 26 June 2026.
Our proposed metamaterial concept enables sound source detection using a single material, in contrast to conventional arrays that require dozens or even hundreds of transducers. We show that the coupled acoustic–vibrational–electrical responses in piezoelectric metamaterials give rise to topology‐governed charge transport, producing distinct voltage ...
Victor Couëdel   +7 more
wiley   +1 more source

Planejamento de movimento de sistemas robóticos de intervenção subaquática baseado na teoria dos helicoides [PDF]

open access: yes, 2012
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Engenharia MecânicaOs veículos subaquáticos não tripulados (ou UUV, do inglês Unmanned Underwater Vehicles) são responsáveis pela execução de ...
Rocha, Carlos Rodrigues
core  

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