Results 1 to 10 of about 72,624 (215)

Research on Multi-AUVs Data Acquisition System of Underwater Acoustic Communication Network [PDF]

open access: yesSensors, 2022
In order to meet the needs of large-scale underwater operations, the underwater acoustic communication network emerged, marking a historic moment. At the same time, the development of artificial intelligence has promoted the application of intelligent ...
Chunxian Gao, Wenwen Hu, Keyu Chen
doaj   +2 more sources

Acoustic communication for medical nanorobots [PDF]

open access: yesNano Communication Networks, 2012
Communication among microscopic robots (nanorobots) can coordinate their activities for biomedical tasks. The feasibility of in vivo ultrasonic communication is evaluated for micron-size robots broadcasting into various types of tissues. Frequencies between 10MHz and 300MHz give the best tradeoff between efficient acoustic generation and attenuation ...
Tad Hogg, Robert A Freitas
exaly   +3 more sources

The origins of acoustic communication in vertebrates. [PDF]

open access: yesNat Commun, 2020
AbstractAcoustic communication is crucial to humans and many other tetrapods, including birds, frogs, crocodilians, and mammals. However, large-scale patterns in its evolution are largely unstudied. Here, we address several fundamental questions about the origins of acoustic communication in terrestrial vertebrates (tetrapods), using phylogenetic ...
Chen Z, Wiens JJ.
europepmc   +5 more sources

Underwater Accompanying Robot Based on SSDLite Gesture Recognition

open access: yesApplied Sciences, 2022
Underwater robots are often used in marine exploration and development to assist divers in underwater tasks. However, the underwater robots on the market have some problems, such as only a single function of object detection or tracking, the use of ...
Tingzhuang Liu   +3 more
doaj   +1 more source

An Energy Optimization Clustering Scheme for Multi-Hop Underwater Acoustic Cooperative Sensor Networks

open access: yesIEEE Access, 2020
In this paper, we propose an improved energy optimization clustering algorithm (EOCA) for the multi-hop underwater acoustic cooperative sensor networks (UWA-CSN) due to the limited energy supply of the underwater sensor nodes.
Weijian Yu   +5 more
doaj   +1 more source

ACOA-AFSA Fusion Dynamic Coded Cooperation Routing for Different Scale Multi-Hop Underwater Acoustic Sensor Networks

open access: yesIEEE Access, 2020
The limited energy supply of underwater nodes is one of the key issues for the multi-hop underwater acoustic sensor networks (UWA-SN). In this paper, the fusion scheme based on ant colony optimization algorithm (ACOA), artificial fish swarm algorithm ...
Yougan Chen   +5 more
doaj   +1 more source

Study on Feeding Activity of Litopenaeus Vannamei Based on Passive Acoustic Detection

open access: yesIEEE Access, 2020
Litopenaeus vannamei, as the main target of shrimp farming in China, has a great market prospect and high economic value. However, domestic Litopenaeus vannamei farming and feeding efficiency are low, mainly through the use of hand tools by farmers to ...
Maochun Wei   +4 more
doaj   +1 more source

Deep learning microphone array speech enhancement for multiple speaker separation

open access: yesDianzi Jishu Yingyong, 2022
With the increase of human-computer voice interaction scenes in recent years, using microphone array speech enhancement to improve speech quality has become one of the research hotspots.
Zhang Jiayang   +3 more
doaj   +1 more source

Anti-Multipath Orthogonal Chirp Division Multiplexing for Underwater Acoustic Communication

open access: yesIEEE Access, 2020
Multipath due to reflections of the sea surface, seabed, and obstacles, as well as inhomogeneity within the ocean, is an important characteristic of underwater acoustic channels. Mutual interference among multiple paths causes severe amplitude fading and
Peibin Zhu   +4 more
doaj   +1 more source

Reversible Hardware for Acoustic Communications [PDF]

open access: yesIEEE Communications Magazine, 2020
Reversible computation has been recognised as a potential solution to the technological bottleneck in the future of computing machinery. Rolf Landauer determined the lower limit for power dissipation in computation and noted that dissipation happens when information is lost, i.e., when a bit is erased. This meant that reversible computation, conserving
Harun Siljak   +2 more
openaire   +2 more sources

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