Results 51 to 60 of about 75,227 (355)

Model-based learning of underwater acoustic communication performance for marine robots

open access: yesRobotics Auton. Syst., 2021
Accurate prediction of acoustic communication performance is an important capability for marine robots. In this paper, we propose a model-based learning methodology for the prediction of underwater acoustic communication performance.
George P. Kontoudis   +2 more
semanticscholar   +1 more source

Node Energy Consumption Balanced Multi-Hop Transmission for Underwater Acoustic Sensor Networks Based on Clustering Algorithm

open access: yesIEEE Access, 2020
With the advancement and implementation of marine strategies in various countries, it is of great significance to collect marine data by using underwater acoustic sensor networks (UWA-SNs).
Meihuang Wang   +4 more
doaj   +1 more source

A Survey on Integration Design of Localization, Communication, and Control for Underwater Acoustic Sensor Networks

open access: yesIEEE Internet of Things Journal
Underwater acoustic sensor networks (UASNs), which are formed by a number of interconnected mobile vehicles and static sensors, have emerged as a promising solution to explore and utilize the ocean resources.
Jing Yan   +4 more
semanticscholar   +1 more source

MF-HER: Marine Mammal-Friendly Based High Spectral-Efficient Routing for Underwater Acoustic Sensor Networks

open access: yesIEEE Access, 2020
In real ocean environments, artificial acoustic and natural acoustic systems are coexisted to share scarce spectrum resources. In this paper, we propose a marine mammals-friendly based high spectral-efficient routing (MF-HER) protocol to improve spectrum
Yougan Chen   +4 more
doaj   +1 more source

Sound Reception in the Yangtze Finless Porpoise and Its Extension to a Biomimetic Receptor

open access: yesBiomimetics, 2023
Sound reception was investigated in the Yangtze finless porpoise (Neophocaena phocaenoides asiaeorientalis) at its most sensitive frequency. The computed tomography scanning, sound speed, and density results were used to develop a three-dimensional ...
Zhongchang Song   +8 more
doaj   +1 more source

A Fish-Counting Method Using Fusion of Spatial Sensing and Temporal Information

open access: yesRemote Sensing
In modern aquaculture, accurate and efficient fish counting is crucial for the optimization of resource management and the enhancement of production profitability.
Zhaozhi Wu   +6 more
doaj   +1 more source

A Compact Acoustic Communication Module for Remote Control Underwater [PDF]

open access: yes, 2015
This paper describes an end-to-end compact acoustic communication system designed for easy integration into remotely controlled underwater operations. The system supports up to 2048 commands that are encoded as 16 bit words.
DelPreto, Joseph Jeff   +7 more
core   +1 more source

Scene-Driven Semantic Alignment for Generative Communication in Underwater Images

open access: yesIET Signal Processing
Underwater images serve as one of the most intuitive media for human perception of underwater environments. However, the limited bandwidth and susceptibility to noise in underwater acoustic (UWA) channels pose significant challenges for traditional image
Yuetong Li   +4 more
doaj   +1 more source

A Review on Sensor Technologies, Control Approaches, and Emerging Challenges in Soft Robotics

open access: yesAdvanced Robotics Research, EarlyView.
This review provides an introspective of sensors and controllers in soft robotics. Initially describing the current sensing methods, then moving on to the control methods utilized, and finally ending with challenges and future directions in soft robotics focusing on the material innovations, sensor fusion, and embedded intelligence for sensors and ...
Ean Lovett   +5 more
wiley   +1 more source

Underwater acoustic communication messaging time stamp applied to global time synchronization

open access: yes, 2014
This paper presents a new approach to time stamp messages in underwater acoustic communication. Message time stamping is a widely used method for synchronizing two clocks over a cabled or wireless communication, by exchanging time information in ...
Oriol Pallares   +5 more
core   +1 more source

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