Results 41 to 50 of about 11,432 (211)
Experimental Study and Numerical Simulation of Radiated Noise from Unmanned Underwater Vehicle
This paper focuses on the research of the radiation noise of underwater unmanned vehicle (UUV), which is one of the most important indicators for evaluating the performance of underwater unmanned equipment.
Zhang Chunyu +5 more
doaj +1 more source
Coupling Dynamics Study on Multi-Body Separation Process of Underwater Vehicles
Based on the Newton-Euler method, a coupling rigid-body dynamics model of a Trans-Medium Vehicle (TMV) separating from an Unmanned Underwater Vehicle (UUV) has been established. The modeling is based on the “holistic method” and “Kane” ideas respectively,
Jiahui Chen +4 more
doaj +1 more source
Collection of Marine Debris by Jointly Using UAV-UUV With GUI for Simple Operation
In recent years, floating debris in the sea has damaged the environment and harmed wildlife. Systems for collecting floating marine debris in the open ocean by installing a huge net or using a vacuum device have been proposed. However, to the best of our
Naoki Shirakura +4 more
doaj +1 more source
ABSTRACT This paper investigates the distributed prescribed‐time formation tracking problem for uncertain multiple six‐degree‐of‐freedom underactuated underwater vehicles operating in dynamic state and input‐triggered environments. A critical challenge lies in addressing the nondifferentiability of event‐triggered state variables during recursive ...
Hyeong Jin Kim, Sung Jin Yoo
wiley +1 more source
UNDERSEA : An Exemplar for Engineering Self-Adaptive Unmanned Underwater Vehicles [PDF]
Recent advances in embedded systems and underwater communications raised the autonomy levels in unmanned underwater vehicles (UUVs) from human-driven and scripted to adaptive and self-managing.
Calinescu, Radu Constantin +3 more
core +3 more sources
Abstract This paper studies a formation control problem with distance constraints for nonlinear agents with uncertainties. Controlling an edge is assigned to only one of its incident agents. Directed graph theory is used to model the desired formation topology.
Reza Babazadeh, Rastko R. Selmic
wiley +1 more source
The underwater acoustic localization of deep-sea UUV in the underwater acoustic sensor networks is mainly based on the geometric principle. Due to the uneven underwater sound speed, the propagation of sound ray is bent.
KANG Yuzhu +4 more
doaj +1 more source
Spin-1/2 electrons are scattered through one or two diamond-like loops, made of quantum dots connected by one-dimensional wires, and subject to both an Aharonov-Bohm flux and (Rashba and Dresselhaus) spin-orbit interactions.
Amnon Aharony +10 more
core +1 more source
ABSTRACT Australia is a maritime nation, relying on access to its surrounding oceans for its economy and security. The Royal Australian Navy conducts undersea surveillance to monitor this vital maritime environment and gain insight into activities beneath the ocean's surface.
Timothy J. Milledge +2 more
wiley +1 more source
Coordinated Target Tracking Strategy for Multiple Unmanned Underwater Vehicles With Time Delays
Focusing on coordination and consensus, this paper, addresses a control problem for a group of unmanned underwater vehicles (UUVs) by tracking a maneuvering target with varying velocity and time delays.
Zheping Yan +3 more
doaj +1 more source

