Results 111 to 120 of about 75,227 (355)

A 2D Non-Stationary Channel Model for Underwater Acoustic Communication Systems [PDF]

, 2021
Xiuming Zhu, Cheng‐Xiang Wang, Ruofei Ma   +2 more
openalex   +1 more source

Environmental-friendly underwater acoustic communication and networks

, 2012
Intense harvesting of ocean resources extended exploitation activities to previously unexplored open ocean areas, to greater ocean depths and to remote polar regions. Such activities include, but are not limited to, energy, geology and fisheries.
Jesus, S. M.
core  

Taking LoRa for a dive : CSS for low-power acoustic underwater communication

, 2022
Long Range (LoRa) is a rising technology for low-power over-water wide area networks. In this paper, we modify the physical layer (PHY) of the LoRa communication standard for use in acoustic underwater communication.
Renner, Bernd-Christian, Steinmetz, Fabian   +1 more
core  

Redefining Optimal Coverage Path Planning for FLS‐Equipped AUVs With Deep Reinforcement Learning

Journal of Field Robotics, EarlyView.
ABSTRACT Autonomous Underwater Vehicles (AUVs) have emerged as indispensable tools for a variety of subsea tasks, from habitat monitoring and seabed mapping to infrastructure inspection and mine countermeasures. A fundamental challenge in this field is Coverage Path Planning (CPP), the problem of ensuring complete and efficient area coverage.
Lorenzo Cecchi, Alberto Topini, Alessandro Bucci, Alessandro Ridolfi   +3 more
wiley   +1 more source

Modeling the Geometry of an Underwater Channel for Acoustic Communication

, 2022
The achievement of efficient data transmissions via underwater acoustic channels, while dealing with large data packets and real-time data fed by underwater sensors, requires a high data rate.
Hala A. Naman, A.E. Abdelkareem, Naman, Hala A., Abdelkareem, A. E.   +3 more
core   +1 more source

Linear System Identification and Control of a Low‐Cost High‐Performance Omnidirectional Marine Surface Vehicle for Swarming Applications

Journal of Field Robotics, EarlyView.
ABSTRACT Marine operations traditionally rely on human intervention, a costly and disruptive method. Autonomous surface vehicles (ASVs) offer a powerful alternative, capable of operating autonomously, for extended periods, and with various sensors for various missions.
Ayman El Qemmah, Gianni Cario, Alessandro Casavola, Marco Lupia, Francesco Tedesco   +4 more
wiley   +1 more source

TIME-VARYING DOPPLER COMPENSATION FOR UNDERWATER ACOUSTIC COMMUNICATION

, 2017
This thesis focuses on time-varying Doppler compensation for underwater acoustic communications using an orthogonal frequency division multiplexing (OFDM) system.
Mirhedayati Roudsari, Seyedhabib
core  

Rhyming in the cold: first evidence of soniferous fishes in the Southern Ocean

Remote Sensing in Ecology and Conservation, EarlyView.
The acoustic ecology of Southern Ocean fishes remains unknown due to a lack of dedicated acoustic research on the fishes of this ocean. Passive acoustic monitoring data were collected at the South African sub‐Antarctic Prince Edward Islands using an underwater acoustic recorder, and towed underwater Ski‐Monkey cameras were deployed to identify fish ...
Fannie W. Shabangu, Grant van der Heever, Charles von der Meden, Hannah Truter, Stephen J. Lamberth, Ofer Gon   +5 more
wiley   +1 more source

Research and Development of a Highly Reconfigurable OFDM MODEM for Shallow Water Acoustic Communication

IEEE Access, 2019
Orthogonal frequency division multiplexing (OFDM) provides an effective approach to combat multipath with high bandwidth efficiency for underwater acoustic communication, thus design and implementation of acoustic OFDM MODEMs draw more and more attention.
Yuehai Zhou, Feng Tong
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