Results 41 to 50 of about 959 (183)

AURP: An AUV-Aided Underwater Routing Protocol for Underwater Acoustic Sensor Networks

Sensors, 2012
Deploying a multi-hop underwater acoustic sensor network (UASN) in a large area brings about new challenges in reliable data transmissions and survivability of network due to the limited underwater communication range/bandwidth and the limited energy of ...
Sunghwan Kim, Hoon Oh, Seokhoon Yoon, Abul K. Azad   +3 more
doaj   +1 more source

Marine DC resistivity and self-potential survey in the hydrothermal deposit areas using multiple AUVs and ASV

Terrestrial, Atmospheric and Oceanic Sciences, 2020
Detecting resistivity and self-potential (SP) anomalies is useful for the exploration of hydrothermal deposits. Using autonomous underwater vehicles (AUVs) can increase survey effectiveness because it allows stable posture control without a towing wire ...
Takafumi Kasaya, Hisanori Iwamoto, Yoshifumi Kawada, Tadahiro Hyakudome   +3 more
doaj   +1 more source

Deep learning‐based super‐resolution reconstruction and improved YOLOv9 for efficient benthos detection: a case study at Lake Hamana, Japan

Remote Sensing in Ecology and Conservation, EarlyView.
This study presents a UAV‐based framework that integrates deep learning‐based super‐resolution reconstruction and an enhanced YOLO detector to improve centimetre‐scale benthic organism monitoring. Using hermit crabs in Lake Hamana, a coastal lagoon in Japan, as a case study, the method substantially enhanced small‐object detection performance ...
Fan Zhao, Bangzhang Ma, Dianhan Xi, Jiaqi Wang, Yijia Chen, Yongying Liu, Xinlei Shao, Mowen Zhang, Guocheng Zhang, Jundong Chen, Katsunori Mizuno   +10 more
wiley   +1 more source

Hybrid Path Planning Using a Bionic-Inspired Optimization Algorithm for Autonomous Underwater Vehicles

Journal of Marine Science and Engineering, 2023
This research presents a hybrid approach for path planning of autonomous underwater vehicles (AUVs). During path planning, static obstacles affect the desired path and path distance which result in collision penalties.
Sarada Prasanna Sahoo, Bikramaditya Das, Bibhuti Bhusan Pati, Fausto Pedro Garcia Marquez, Isaac Segovia Ramirez   +4 more
doaj   +1 more source

Scalable low‐cost seabed landers: the missing link for sustained, integrated, long‐term observations in dynamic shallow seas

Remote Sensing in Ecology and Conservation, EarlyView.
Seabed landers, when equipped with a range of biotic and abiotic sensors, offer a non‐invasive and cost‐effective solution for ecosystem‐scale monitoring of Essential Biodiversity Variables (EBVs) and Essential Ocean Variables (EOVs) in dynamic shallow seas.
Arienne Calonge, Roeland Develter, Carlota Muñiz, Clea Parcerisas, Jan Reubens, Wieter Boone, Klaas Deneudt, Elisabeth Debusschere   +7 more
wiley   +1 more source

Formation Control of Multiple Autonomous Underwater Vehicles under Communication Delay, Packet Discreteness and Dropout

Journal of Marine Science and Engineering, 2022
Effective communication between multiple autonomous underwater vehicles (AUVs) is necessary for formation control. As the most reliable underwater communication method, acoustic communication still has many constraints compared with radio communication ...
Liang Li, Yiping Li, Yuexing Zhang, Gaopeng Xu, Junbao Zeng, Xisheng Feng   +5 more
doaj   +1 more source

Global Analysis of Shallow Underwater Fish Observation Research: 70 Years of Progress, Persistent Geographic Biases and a Path Forward

Fish and Fisheries, EarlyView.
ABSTRACT Marine ecosystems are increasingly threatened by overfishing, pollution, coastal development and climate change, underscoring the need for long‐term, representative information on key fish populations and habitats to inform management and policy.
Angus John van Wyk, Rick D. Stuart‐Smith, Jordan S. Goetze, Eva Maire, Elodie Heyns‐Veale, Kaylee Smit, Tim J. Langlois, M. Aaron MacNeil, Alejandro Pérez‐Matus, Amanda T. Lombard, Ana Carolina, Christy Semmens, Ella Clausius, Fernanda A. Rolim, Jonathan S. Lefcheck, Jacquomo Monk, Joanna K. Schmid, Katherine Tattersall, Laura Ghigliotti, Luther Adams, Melita Samoilys, Pascale Chabanet, Paul Whomersley, Peter Walsh, Reiji Masuda, Russell Brainard, Anthony Bernard   +26 more
wiley   +1 more source

Hierarchical formation control technology for multiple autonomous underwater vehicles

IET Smart Grid
The employment of multiple AUVs is to perform missions while maintaining a geometric formation designated. In this paper, communication mechanism based on blackboard is introduced to support cooperation between AUVs, messages are typed according to ...
Shibo Fan, Jie Jiao, Pengfeng Lin, Qingzuo Meng   +3 more
doaj   +1 more source

Multi Autonomous Underwater Vehicle (AUV) Distributed Collaborative Search Method Based on a Fuzzy Clustering Map and Policy Iteration

Journal of Marine Science and Engineering
Collaborative search with multiple Autonomous Underwater Vehicles (AUVs) significantly enhances search efficiency compared to the use of a single AUV, facilitating the rapid completion of extensive search tasks.
Kaiqian Cai, Guocheng Zhang, Yushan Sun, Guoli Ding, Fengchi Xu   +4 more
doaj   +1 more source

Evaluating the possible role of bottom currents and internal waves in shaping seafloor morphology in a mesophotic reef

Sedimentology, Volume 73, Issue 3, Page 593-619, April 2026.
ABSTRACT Mesophotic reefs are located in low light conditions which, depending on the region, are usually found in water depths greater than ~30 m. They are less affected by ocean warming than reefs found in shallower water depths and thus might become increasingly important for the sustainability of marine biodiversity.
Or M. Bialik, Henriette Wilckens, Omri Gadol, Aaron Micallef, Christian Betzler, Ole Johannes R. Sørensen, Hagai Nativ, Yizhaq Makovsky   +7 more
wiley   +1 more source