Results 81 to 90 of about 794,446 (201)

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

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

AI‐Based Autonomous Sailboat Navigation: A Review

open access: yesJournal of Field Robotics, Volume 42, Issue 8, Page 4157-4180, December 2025.
ABSTRACT This review explores the recent advancements in AI‐driven autonomous sailboat navigation, underscoring its pivotal role in ocean monitoring and real‐time maritime data collection. Drawing on an extensive range of primary and secondary sources, the study critically evaluates current challenges, innovative control algorithms, and path planning ...
Vishali Mankina   +6 more
wiley   +1 more source

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

USV/UUV Cooperative Navigation Algorithm Based on Moving Long Baseline and Navigation Error Correction

open access: yes水下无人系统学报
Unmanned undersea vehicles(UUVs) undergo a cumulative increase of inertial navigation error caused by long-term cooperative movement. In order to reduce the relative navigation errors between unmanned surface vessels(USVs) and UUVs and improve the ...
Huifeng JIAO   +4 more
doaj   +1 more source

Assessing use of and reaction to unmanned aerial systems in gray and harbor seals during breeding and molt in the UK [PDF]

open access: yes, 2015
This work was supported by UK NERC National Environmental Research Council National Capability funding to SMRU, NERC grant No. GE08-001358 to PP, through UK DEFRA support to SMRU, and by development grants from MASTS and Chester Zoo.Wildlife biology ...
Pomeroy, Patrick   +2 more
core   +1 more source

Development of technologies for low-cost oceanographic unmanned aeronautical vehicles

open access: yes, 2009
Oceanographic research vessels and buoys typically provide high-resolution, shortrange measurements at a high sample rate. Satellites provide wide-range, low-resolution measurements at a low sample rate.
Bennett, Matthew
core   +1 more source

A Cooperative Encirclement Method Based on Delay-Robust Multi-Agent Reinforcement Learning

open access: yes水下无人系统学报
To address delayed observations caused by acoustic communication in cooperative operations of multiple unmanned undersea vehicles(UUVs), a cooperative encirclement method based on delay-robust multi-agent reinforcement learning was proposed.
Songchen FU   +5 more
doaj   +1 more source

Threats from and Countermeasures for Unmanned Aerial and Underwater Vehicles. [PDF]

open access: yesSensors (Basel), 2022
Khawaja W   +5 more
europepmc   +1 more source

A pan-tilt camera Fuzzy vision controller on an unmanned aerial vehicle [PDF]

open access: yes, 2009
is paper presents an implementation of two Fuzzy Logic controllers working in parallel for a pan-tilt camera platform on an UAV. This implementation uses a basic Lucas-Kanade tracker algorithm, which sends information about the error between the center ...
Campoy Cervera, Pascual   +10 more
core   +1 more source

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