Results 71 to 80 of about 965,877 (190)

A numerical study on hydrodynamic maneuvering derivatives for heave-pitch coupling motion of a ray-type underwater glider

open access: yesInternational Journal of Naval Architecture and Ocean Engineering, 2020
We used a numerical method to estimate the hydrodynamic maneuvering derivatives for the heave-pitch coupling motion of an underwater glider. It is very important to assess the hydrodynamic maneuvering characteristics of a specific hull form of an ...
Sungook Lee   +3 more
doaj   +1 more source

Evaluating SOFC-based Power System Concepts for Unmanned Undersea Vehicles [PDF]

open access: yesECS Transactions, 2009
System concepts for powering an unmanned undersea vehicle (UUV) with a solid oxide fuel cell (SOFC) power generator are developed and evaluated through modeling studies of variations in system configurations and design parameters. System concepts that meet the continuous electrical loads for sustained operations and mission selectable capabilities for
Robert Braun, Kyle Kattke
openaire   +1 more source

Navigation of an Autonomous Underwater Vehicle for Shortest Time Sensor Data Collection

open access: yesIET Control Theory &Applications, Volume 20, Issue 1, January/December 2026.
This paper addresses the problem of navigation of an autonomous underwater vehicle (AUV) for effective sensor data collection from an underwater sensor network. The AUV is launched from an unmanned surface vehicle (USV) located at some sea surface point, collects sensor data, and then arrives at the same USV at some other sea surface point.
Andrey V. Savkin   +2 more
wiley   +1 more source

Underwater Target Search and Tracking Based on Air-Sea Heterogeneous Unmanned Platform

open access: yes水下无人系统学报
The marine heterogeneous unmanned systems can effectively enhance the implementation efficiency of complex missions. In this paper, autonomous undersea vehicles(AUVs) and unmanned aerial vehicles(UAVs) were used for searching and tracking unknown ...
Wenjun DING   +4 more
doaj   +1 more source

Derivation of New Orthonormal Basis Functions for Magnetic Detection of Submarine Telecommunications Cables

open access: yesIET Radar, Sonar &Navigation, Volume 20, Issue 1, January/December 2026.
This paper presents the first orthonormal basis function (OBF) framework adapted for passive magnetic detection of DC current‐carrying submarine telecommunications cables, extending Anderson's dipole‐based approach to cable‐like source configurations. Two orthonormal basis functions are derived from the Biot‐Savart law and integrated into a generalised
Khaled Hleis   +3 more
wiley   +1 more source

Modeling and control of a tiltrotor unmanned aerial vehicle for path tracking [PDF]

open access: yes, 2015
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Engenharia de Automação e Sistemas, Florianópolis, 2015.Abstract : This master thesis deals with the modeling and control of a small scale ...
Donadel, Rodrigo
core  

Towards Efficient Data Collection in Internet of Underwater Things: A Review on Routing Techniques, Acoustic Modems and Simulation Tools

open access: yesIET Wireless Sensor Systems, Volume 16, Issue 1, January/December 2026.
This work reviews the various data collection mechanisms in underwater acoustic sensor networks, focusing on multi‐hop routing and AUV‐assisted approaches. It also evaluates the capabilities of acoustic modems and simulation tools available to replicate real‐world underwater scenarios.
Dhivya Bharathi R   +1 more
wiley   +1 more source

Weaponising the Supply Chain: Yemen's Blockade and the Contradictions of Maritime Logistics Capital

open access: yesAntipode, Volume 58, Issue 1, January 2026.
Abstract This paper examines the 2023–2025 naval blockade imposed by Yemen in the Red Sea. It argues that the blockade's success in disrupting global trade stemmed from the potent confluence of asymmetric military tactics and the structural vulnerabilities inherent within global maritime logistics capitalism.
Ashok Kumar
wiley   +1 more source

Multi-UUV Collaborative Bearing-only Target Tracking Based on Boundary Constrained Particle Filter

open access: yes水下无人系统学报
Due to the difficulties of filter initialization and packet loss in underwater acoustic data transmission faced by existing bearing-only target tracking algorithms, a multi-unmanned undersea vehicle(UUV) collaborative bearing-only target tracking ...
Bo HAN   +4 more
doaj   +1 more source

Integrating Composite Materials Throughout the Military Sector: A Review

open access: yesAdvances in Materials Science and Engineering, Volume 2026, Issue 1, 2026.
Composite materials have attracted considerable attention in the defense industry owing to their distinctive properties and wide‐ranging applications. This systematic review examines the current research landscape and recent advancements in the application of composite materials for defense purposes.
Mikru Birhan   +4 more
wiley   +1 more source

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