Results 21 to 30 of about 5,103,302 (259)
IEEE Access, 2019 This paper focuses on the wake-up signal detection design for underwater acoustic communication (UAC) terminals. A wake-up signal detection unit can considerably reduce the power consumption of the terminals.
Deqing Wang +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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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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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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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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Key point detection method for fish size measurement based on deep learning
IET Image Processing, 2023 Accurate fish size measurement in breeding areas is crucial for the fishing industry. Unlike acoustic methods with high equipment cost and low measurement accuracy, current image‐based methods offer a promising alternative.
Yaozhen Yu, Hao Zhang, Fei Yuan
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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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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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