Results 21 to 30 of about 1,115 (112)
Manoeuvring Trials with the MUN Explorer AUV: Data Analysis and Observations [PDF]
, 2007 Manoeuvring trials are usually performed to determine the manoeuvring characteristics of a marine vehicle. It is through certain standard manoeuvres we evaluate the robustness, performance and limitations of the vehicle control system.
Adams, S +6 more
core +1 more source
International Journal of Advanced Robotic Systems, 2017 This article addresses one quadruple-rudder allocation method for an autonomous underwater vehicle (AUV) equipped with X rudder, in which all of the rudders can be operated independently.
Yinghao Zhang +4 more
doaj +1 more source
Line-of-sight iceberg edge-following using an AUV equipped with multibeam sonar [PDF]
, 2015 Obtaining 3D information about ice features, like icebergs, are of interest to researchers and offshore operators moving into the Arctic. Icebergs are affected by wind, and ocean currents, and can have unpredictable drift patterns, causing challenges ...
Norgren, Petter, Skjetne, Roger
core +2 more sources
Development of an autonomous surface vehicle for monitoring underwater vehicles [PDF]
, 2015 JAMSTEC has developed and operated several AUVs (Autonomous Underwater Vehicle) as platform for scientific investigation and explorations of seabed mineral resources. Conventionally, a support vessel monitors only one AUV during its whole dive for safety
FUKUDA, TATSUYA +17 more
core +1 more source
Robust data assimilation in river flow and stage estimation based on multiple imputation particle filter [PDF]
, 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
A 3D reactive collision avoidance algorithm for underactuated underwater vehicles
Journal of Field Robotics, Volume 37, Issue 6, Page 1094-1122, September 2020., 2020 Abstract Avoiding collisions is an essential goal of the control system of autonomous vehicles. This paper presents a reactive algorithm for avoiding obstacles in a three‐dimensional space, and shows how the algorithm can be applied to an underactuated underwater vehicle. The algorithm is based on maintaining a constant avoidance angle to the obstacle,
Martin S. Wiig +2 more
wiley +1 more source
Sustainable Observations of the AMOC: Methodology and Technology
Reviews of Geophysics, Volume 58, Issue 1, March 2020., 2020 Abstract The Atlantic Meridional Overturning Circulation (AMOC) is a key mechanism of heat, freshwater, and carbon redistribution in the climate system. The precept that the AMOC has changed abruptly in the past, notably during and at the end of the last ice age, and that it is “very likely” to weaken in the coming century due to anthropogenic climate ...
G. D. McCarthy +17 more
wiley +1 more source
Design of Sliding Mode Autopilot with Steady-state Error Elimination for Autonomous Underwater Vehicles [PDF]
, 2006 Autonomous Underwater Vehicles (AUVs) have nonlinear and time-varying behaviour and unmodelled dynamics. This paper describes the design, development and evaluation of nonlinear sliding mode autopilot system for an AUV to control the speed, steering and ...
Shi, Juan
core +1 more source
A Model‐Based Decoupling Method for Surge Speed and Heading Control in Vessel Path Following
Mathematical Problems in Engineering, Volume 2020, Issue 1, 2020., 2020 In this paper, to solve the surge speed loss problem generated by sway‐yaw motion in the path‐following control, a model‐based decoupling (MBD) method for surge speed and heading control in vessel path following is proposed. The guidance law is designed independently in the kinematic level.
Xudong Wang +3 more
wiley +1 more source
Hybrid Maneuver for Gradient Search with Multiple Coordinated AUVs [PDF]
, 2004 This work presents a hybrid maneuver for gradient search with multiple AUV's. The mission consists in following a gradient field in order to locate the source of a hydrothermal vent or underwater freshwater source.
Almeida, José +3 more
core +1 more source