Results 71 to 80 of about 322 (212)

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

Third or “Second and a Half”? Continuity, Path Dependence, and the Third Nuclear Age

open access: yesGlobal Policy, Volume 16, Issue 5, Page 934-944, November 2025.
ABSTRACT The world has entered a new nuclear age. Scholars have characterized this “third nuclear age” as one of renewed competition among nuclear‐armed great powers and the coming maturation of new technologies. I trace the origins of the new nuclear age. Focusing primarily on US strategies with two case studies on conventional strike capabilities and
Jan Ludvik
wiley   +1 more source

A sonar-based mapping system for an unmanned undersea vehicle [PDF]

open access: yes, 2002
Thesis (M.Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2002.Includes bibliographical references (p.
Nervegna, Margaret F. (Margaret Frances), 1979-
core  

Undersea immersed tube tunnel docking positioning via active cooperative target photogrammetry

open access: yesComputer-Aided Civil and Infrastructure Engineering, Volume 40, Issue 26, Page 4562-4582, 7 November 2025.
Abstract Deep water, distant sea, unmanned is the inevitable trend of the development of marine engineering, the underwater positioning system for the accuracy, real‐time, and environmental adaptability of the aspects of the increasingly high requirements.
Huachuan Ma   +5 more
wiley   +1 more source

Autonomous Unmanned Vehicle (AUV) Workbench Rehearsal and Replay: Mapping Diverse Vehicle Telemetry Outputs to Common XML Data Archives [PDF]

open access: yes, 2007
15th International Symposium on Unmanned Untethered Submersible Technology (UUST), Autonomous Undersea Systems Institute (AUSI), Durham New Hampshire, 19-22 August 2007.NPS AUV Workbench: PapersNPS Undersea Warfare Research CenterOPNAV N87 Undersea ...
Brutzman, Don
core  

Geophysical Prospecting for the Detection of Buried and Shallow Submerged Archaeological Sites of Roman Period in the Lagoon of Venice (Italy)

open access: yesArchaeological Prospection, Volume 32, Issue 4, Page 1005-1019, October/December 2025.
ABSTRACT We present a study that combines several marine geophysical techniques to detect and map archaeological sites from the Roman period in the shallow waters of the Venice Lagoon, Italy. We employed marine electrical resistivity tomography (M‐ERT), a drone‐based unmanned surface vehicle (USV) multibeam sonar, and subbottom profiler technology to ...
Carlo Beltrame   +4 more
wiley   +1 more source

A Study on Manoeuvring Motion Characteristics of Manta-type Unmanned Undersea Test Vehicle(MUUTV) [PDF]

open access: yes, 2009
The Unmanned Undersea Vehicle(UUV) which had taken the shape of manta was proposed by Lee et al.[4]. It was called Manta-type Unmanned Undersea Test Vehicle(MUUTV) by Bae et al.[1].
배준영
core  

Target Threat Assessment Method for UUVs Based on EBM

open access: yes水下无人系统学报
In order to solve the problems of lack of data mining ability and insufficient explanatory nature of neural network algorithms when traditional target threat assessment methods process complex battlefield situation data, this paper proposed a threat ...
Shuwei LIU, Jianqing CHENG, Kai LIU
doaj   +1 more source

Dynamic Continuous Variable Quantum Key Distribution for Securing a Future Global Quantum Network

open access: yesAdvanced Quantum Technologies, Volume 8, Issue 10, October 2025.
The article explores securing a dynamic global quantum network using continuous variable QKD, proposing a unified three‐layer network architecture for integrating existing QKD networks. It evaluates secret key rates across various channels and introduces the link capacity as a metric for determining the optimum path for secret key distribution in a ...
Mikhael T. Sayat   +4 more
wiley   +1 more source

Three-dimensional feature reconstruction with dual forward looking sonars for unmanned underwater vehicle navigation [PDF]

open access: yes, 2009
Unmanned Underwater Vehicles frequently rely on two-dimensional sensors for information about their surroundings. These sensors do not provide adequate information for obstacle avoidance in cluttered maritime environments.
McChesney, Nevin A.
core  

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