Results 31 to 40 of about 177,356 (271)

Spray Underwater Glider Operations

open access: yesJournal of Atmospheric and Oceanic Technology, 2016
AbstractOperational statistics for the Spray underwater glider are presented to demonstrate capabilities for sustained observations. An underwater glider is an autonomous device that profiles vertically by changing buoyancy and flies horizontally on wings. The focus has been on sustained observations of boundary currents to take advantage of the glider’
Daniel L. Rudnick   +2 more
openaire   +1 more source

A controller comprising tail wing control of a hybrid autonomous underwater vehicle for use as an underwater glider

open access: yesInternational Journal of Naval Architecture and Ocean Engineering, 2019
A controller for an underwater glider is presented. Considered underwater glider is a torpedo-shaped autonomous underwater vehicle installing adjustable buoyancy bag and movable battery in it.
Moon G. Joo
doaj   +1 more source

Robust data assimilation in river flow and stage estimation based on multiple imputation particle filter [PDF]

open access: yes, 2019
In this paper, new method is proposed for a more robust Data Assimilation (DA) design of the river flow and stage estimation. By using the new sets of data that are derived from the incorporated Multi Imputation Particle Filter (MIPF) in the DA ...
Ismail, Zool Hilmi, Jalaludin, Nor Anija
core   +1 more source

Design and control of hybrid underwater glider

open access: yesAdvances in Mechanical Engineering, 2019
In this article, a design and analysis on 200-m-class hybrid underwater glider actuated by a buoyancy engine and a thruster was studied. The hull shape of the hybrid underwater glider was designed to reduce underwater resistance using Myring hull profile
Dae-Hyeong Ji   +5 more
doaj   +1 more source

Optimal path shape for range-only underwater target localization using a Wave Glider [PDF]

open access: yes, 2018
Underwater localization using acoustic signals is one of the main components in a navigation system for an autonomous underwater vehicle (AUV) as a more accurate alternative to dead-reckoning techniques.
Aguzzi, Jacopo   +6 more
core   +2 more sources

Data-driven depth-averaged current prediction methods for underwater gliders with sailing parameters

open access: yesAIP Advances, 2023
The study of depth-averaged currents is of great significance for the application of underwater gliders. In order to solve the problem of low prediction accuracy of the time series-based depth-averaged current prediction method, the factors affecting the
Yingbin Feng, Xiaozun Guo, Yaojian Zhou
doaj   +1 more source

Range-only underwater target localization : error characterization [PDF]

open access: yes, 2016
Locating a target from range measurements using only one mobile transducer has been increased over the last years. This method allows us to reduce the high costs of deployment and maintenance of traditional fixed systems on the seafloor such as Long
Gomáriz Castro, Spartacus   +5 more
core   +2 more sources

Closing the sea surface mixed layer temperature budget from in situ observations alone: Operation Advection during BoBBLE [PDF]

open access: yes, 2020
Sea surface temperature (SST) is a fundamental driver of tropical weather systems such as monsoon rainfall and tropical cyclones. However, understanding of the factors that control SST variability is lacking, especially during the monsoons when in situ ...
A Okubo   +28 more
core   +1 more source

Effect of water current on underwater glider velocity and range [PDF]

open access: yes, 2016
An autonomous underwater glider speed and range is influenced by water currents. This is compounded by a weak actuation system for controlling its movement.
Abdul Malik, Adi Maimun   +5 more
core   +1 more source

Numerical Study on the Water Entry Impact Forces of an Air-Launched Underwater Glider under Wave Conditions

open access: yesShock and Vibration, 2022
In this study, the water entry of an air-launched underwater glider under wave conditions is numerically simulated by the computational fluid dynamics method.
Xiangcheng Wu   +5 more
semanticscholar   +1 more source

Home - About - Disclaimer - Privacy