Results 21 to 30 of about 4,968,542 (275)

A mechanism of topology optimization for underwater acoustic sensor networks based on autonomous underwater vehicles

International Journal of Distributed Sensor Networks, 2017
Limited energy, high mobility, and unsteady acoustic communication links render the underwater acoustic sensor networks subject to performance reduction.
Ming He, Fangxin Liu, Zhuang Miao, Huan Zhou, Qiuli Chen   +4 more
doaj   +1 more source

Scaled Conjugate Gradient Neural Intelligence for Motion Parameters Prediction of Markov Chain Underwater Maneuvering Target

Journal of Marine Science and Engineering
This study proposes a novel application of neural computing based on deep learning for the real-time prediction of motion parameters for underwater maneuvering object. The intelligent strategy utilizes the capabilities of Scaled Conjugate Gradient Neural
Wasiq Ali, Habib Hussain Zuberi, Xin Qing, Abdulaziz Miyajan, Amar Jaffar, Ayman Alharbi   +5 more
doaj   +1 more source

The Control Packet Collision Avoidance Algorithm for the Underwater Multichannel MAC Protocols via Time-Frequency Masking

Discrete Dynamics in Nature and Society, 2016
Establishing high-speed and reliable underwater acoustic networks among multiunmanned underwater vehicles (UUVs) is basic to realize cooperative and intelligent control among different UUVs.
Yang Yu, Jie Shi, Ke He, Peng Han
doaj   +1 more source

Node Selection Algorithm for Underwater Acoustic Sensor Network Based on Particle Swarm Optimization

IEEE Access, 2019
Underwater target positioning technology is the most important part of UnderWater Acoustic Sensor Network(called UWASN), and it is one of the most important research directions in this field with broad application prospects in commercial and military ...
En Cheng, Longhao Wu, Fei Yuan, Chunxian Gao, Jinwang Yi   +4 more
doaj   +1 more source

Joint Channel and Power Assignment for Underwater Cognitive Acoustic Networks on Marine Mammal-Friendly

Applied Sciences, 2023
When marine animals and underwater acoustic sensor networks (UASNs) share spectrum resources, problems such as serious harm caused to marine animals by underwater acoustic systems and scarcity of underwater spectrum resources are encountered.
Libin Xue, Chunjie Cao
doaj   +1 more source

Underwater Channel Characterization to Design Wireless Sensor Network by Bellhop [PDF]

, 2016
Acoustic underwater link due to low attenuation is employed for underwater sensor network (UWSN). Due to water changing physical properties and different environmental conditions, the sound propagation for every underwater channel are different.
Bahrami, Nima; Universiti Teknologi Malaysia, Khamis, Nor Hisham Haji; Universiti Teknologi Malaysia, Yahya, Azli; Universiti Teknologi Malaysia, Baharom, Ameruddin; Universiti Teknologi Malaysia   +3 more
core   +1 more source

Design of underwater acoustic sensor communication systems based on software-defined networks in big data

International Journal of Distributed Sensor Networks, 2017
The application based on big data is an important development trend of underwater acoustic sensor networks. However, traditional underwater acoustic sensor networks rely on the hardware infrastructure.
Jianping Wang, Lijuan Ma, Wei Chen
doaj   +1 more source

Intelligent Bayesian regularization backpropagation neuro computing paradigm for state features estimation of underwater passive object

Frontiers in Physics
In underwater environments, the accurate estimation of state features for passive object is a critical aspect of various applications, including underwater robotics, surveillance, and environmental monitoring.
Wasiq Ali, Wasiq Ali, Wasiq Ali, Muhammad Bilal, Muhammad Bilal, Muhammad Bilal, Ayman Alharbi, Amar Jaffar, Abdulaziz Miyajan, Syed Agha Hassnain Mohsan   +9 more
doaj   +1 more source

Model-Driven Deep-Learning-Based Underwater Acoustic OTFS Channel Estimation

Journal of Marine Science and Engineering, 2023
Accurate channel estimation is the fundamental requirement for recovering underwater acoustic orthogonal time–frequency space (OTFS) modulation signals.
Yuzhi Zhang, Shumin Zhang, Yang Wang, Qingyuan Liu, Xiangxiang Li   +4 more
doaj   +1 more source

Chemically Programmable Underwater Sound-Absorbing Metamaterial via MXene Self-Assembly. [PDF]

Adv Sci (Weinh)
MXene self‐assembly creates a chemically programmable underwater metamaterial with quasi‐periodic layers and a chemical‐physical multi‐level constraint system. A crosslinker as a ‘chemical scissor’ precisely edits microscopic interactions, exciting deep‐subwavelength strong local resonances that induce near‐zero/negative effective bulk modulus (Keff ...
Gan Z, Qi R, Liao M, Chen B, Cheng C, Tu W.   +5 more
europepmc   +2 more sources