Results 21 to 30 of about 282,410 (285)
Selective Dynamic Coded Cooperative Communications for Multi-Hop Underwater Acoustic Sensor Networks
IEEE Access, 2019 Due to the limitation of acoustic velocity in underwater environments, propagation delay is a horrible problem in multi-hop underwater acoustic sensor networks (UW-ASNs).
Yougan Chen +4 more
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Representation of acoustic communication signals by insect auditory receptor neurons [PDF]
, 2001 Despite their simple auditory systems, some insect species recognize certain temporal aspects of acoustic stimuli with an acuity equal to that of vertebrates; however, the underlying neural mechanisms and coding schemes are only partially understood.
Herz, Andreas V. M. +5 more
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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 +4 more
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Resonance-Based Time-Frequency Manifold for Feature Extraction of Ship-Radiated Noise
Sensors, 2018 In this paper, a novel time-frequency signature using resonance-based sparse signal decomposition (RSSD), phase space reconstruction (PSR), time-frequency distribution (TFD) and manifold learning is proposed for feature extraction of ship-radiated noise,
Jiaquan Yan +4 more
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The Influence of MAC Protocol on a Non-Synchronous Localization Scheme in Large-Scale UWSNs
IEEE Access, 2018 Localization plays a more and more important role in underwater wireless sensor networks (UWSNs). But in the large-scale UWSNs, the localization algorithm can’t be realized for the continuous packet collision.
Keyu Chen +4 more
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Dianzi Jishu Yingyong, 2021 With the rapidly increasing interests in ocean observation and ocean Internet of Things, low-cost underwater acoustic communication equipment draws more and more attention from the research community.
Li Shuang, Qiu Yifan, Tong Feng
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A Biological Sensor System Using Computer Vision for Water Quality Monitoring
IEEE Access, 2018 Water pollution has seriously threatened our life, so an effective water quality monitoring mechanism is the most important part of water quality management.
Fei Yuan +3 more
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Using Orthogonal Combined Signals in Broadband ADCP for Improving Velocity Measurement
Journal of Marine Science and Engineering, 2020 Broadband Acoustic Doppler Current Profiler (BBADCP) is a widely used technology in velocity measurements. To adapt to the varied water environment and different measurement requirements, flexible tuning of transmitted signal parameters will improve the ...
Yujing Lin, Fei Yuan, En Cheng
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Speckle Noise Reduction in Sonar Image Based on Adaptive Redundant Dictionary
Journal of Marine Science and Engineering, 2020 As acoustic waves are affected by the channel characteristics, such as scattering and reverberation when propagating in water, sonar images often exhibit speckle noise which will cause visual quality of the image to decrease.
Yifan Huang, Weixiang Li, Fei Yuan
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IEEE Access, 2021 The dynamic topology, narrow transmission bandwidth, and limited energy of sensor nodes in mobile underwater acoustic sensor networks (UASNs) pose challenges to design an efficient and robust network for underwater communications.
Jianying Zhu +5 more
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