Results 71 to 80 of about 21,410 (207)
Advanced Science, Volume 13, Issue 15, 13 March 2026.Recent advances in materials and device engineering enable continuous, real‐time monitoring of muscle activity via wearable and implantable systems. This review critically summarizes emerging technologies for tracking electrophysiological, biomechanical, and oxygenation signals, outlines fundamental principles, and highlights key challenges and ...
Zhengwei Liao +4 more
wiley +1 more source
Application of time reversal technique in shallow water environment
Archives of Acoustics, 2014 Underwater acoustic communications in shallow water environment is a challenging problem due to the intersymbol interference caused by time-varying dispersive multipath channel.
Sławomir Jastrzębski
doaj
Multi-Level Multi-Technology Underwater Networks: Challenges and Opportunities for Marine Monitoring
NetworkUnderwater networks are crucial for monitoring the marine ecosystem, enabling data collection to support the preservation and protection of natural resources.
A. Rehman, L. Galluccio
doaj +1 more source
A Hierarchical Communication Architecture for Oceanic Surveillance Applications
Sensors, 2011 The interest in monitoring applications using underwater sensor networks has been growing in recent years. The severe communication restrictions imposed by underwater channels make that efficient monitoring be a challenging task. Though a lot of research
Romano Fantacci +4 more
doaj +1 more source
Real‐Time Detection and Prevention of DoS Attack in Unmanned Marine Vehicles Using Machine Learning
SECURITY AND PRIVACY, Volume 9, Issue 2, March/April 2026.ABSTRACT Unmanned marine vehicles (UMVs) are one of the most crucial components of the underwater communication and surveillance system in the marine and oceanographic environment. This research introduces a novel approach to stabilize the connection in an unstable underwater environment by inheriting features of communication velocities.
Noman Ali +8 more
wiley +1 more source
Spread-Spectrum Techniques for Bio-Friendly Underwater Acoustic Communications
IEEE Access, 2018 This paper investigates techniques to mitigate the impact of acoustic communication signals on marine life, by minimizing source level and designing waveforms with characteristics proven to reduce animal discomfort in bioacoustics studies.
Benjamin Sherlock +2 more
doaj +1 more source
Enhanced Mobile Multiple-Input Multiple-Output Underwater Acoustic Communications
International Journal of Distributed Sensor Networks, 2013 This paper focuses on mobile multiple-input multiple-output (MIMO) underwater acoustic communications (UAC) over double-selective channels subject to both intersymbol interference and Doppler scaling effects.
Kexin Zhao, Jun Ling, Jian Li
doaj +1 more source
Underwater acoustic communications. From point-to-point to networks [PDF]
, 2013 This is a review presentation that addresses recent developments in underwater acoustic telemetry as a tool for ocean observation, monitoring and protection.
Jesus, S. M.
core
Evaluating the Risk of Collision of Seals Swimming Within Metres of Operating Tidal Turbines
Aquatic Conservation: Marine and Freshwater Ecosystems, Volume 36, Issue 2, February 2026.ABSTRACT We used imaging sonar to continuously monitor wildlife at an operational tidal turbine in the Pentland Firth, Scotland, between May 2022 and June 2023. Of 704 detected seal tracks, 347 occurred during turbine operation and 122 of these were detected directly upstream of the rotating blades in the horizontal plane.
Jessica Montabaranom +4 more
wiley +1 more source
Shallow Water Experiment of OFDM Underwater Acoustic Communications
Archives of Acoustics, 2020 The large variability of communication properties of underwater acoustic channels, and especially the strongly varying instantaneous conditions in shallow waters, is a challenge for the designers of underwater acoustic communication (UAC) systems.
Iwona KOCHAŃSKA +2 more
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