Results 21 to 30 of about 129,555 (299)
Simulated Research on Passive Sonar Range Using Different Hydrographic Conditions
MATEC Web of Conferences, 2015 As an example using the passive sonar, it calculated the quality factor of passive sonar using the sonar equation. The sound field was calculated under different depth and range using multiform hydrographic conditions.
Han Jing +3 more
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Passive Tracking of Multiple Underwater Targets in Incomplete Detection and Clutter Environment
Entropy, 2021 A major advantage of the use of passive sonar in the tracking multiple underwater targets is that they can be kept covert, which reduces the risk of being attacked.
Xiaohua Li, Bo Lu, Wasiq Ali, Haiyan Jin
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An Improved Aerial Target Localization Method with a Single Vector Sensor
Sensors, 2017 This paper focuses on the problems encountered in the actual data processing with the use of the existing aerial target localization methods, analyzes the causes of the problems, and proposes an improved algorithm.
Anbang Zhao +4 more
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UFMC-Based Underwater Voice Transmission Scheme with LDPC Codes
Applied Sciences, 2021 An underwater universal filtered multicarrier (UFMC)-based voice transmission scheme is proposed using a 512-point inverse discrete Fourier transform, utilizing 10 sub-bands, and that each had 20 subcarriers.
Chin-Feng Lin
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IEEE Access, 2019 In this paper, a soft-switching proximate time-optimal control (PTOC) is proposed based on the model-compensation extended state observer (ESO) and Takagi-Sugeno fuzzy switching, for the fast set-heading tracking of underactuated autonomous underwater ...
An Li +5 more
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Sensors, 2020 This paper proposes a solution for merging the measurements from two perpendicular profiling sonars with different beam-widths, in the context of underwater karst (cave) exploration and mapping.
Yohan Breux, Lionel Lapierre
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Underwater Acoustic Micromodem for Underwater Internet of Things
Wireless Communications and Mobile Computing, 2022 Underwater acoustic communication (UAC) networks are becoming a hot spot for research due to the growing demand for ocean development. Previous acoustic modems were mainly designed for the field of ocean engineering construction and scientific investigation, and consequently, with the characteristics of large size and high-power consumption, a low-cost,
Hongbin Chen +4 more
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A Multi-Spatial Scale Ocean Sound Speed Prediction Method Based on Deep Learning
Journal of Marine Science and EngineeringAs sound speed is a fundamental parameter of ocean acoustic characteristics, its prediction is a central focus of underwater acoustics research. Traditional numerical and statistical forecasting methods often exhibit suboptimal performance under complex ...
Yu Liu +8 more
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An ADS-Based Sparse Optimization Method for Sonar Imaging Sensor Arrays
Applied Sciences, 2020 The Mills Cross sonar sensor array, achieved by the virtual element technology, is one way to build a low-complexity and low-cost imaging system while not decreasing the imaging quality.
Jiancheng Liu +3 more
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Journal of Marine Science and Engineering, 2021 Visual observations of the marine biodiversity can be difficult in specific areas for different reasons, including weather conditions or a lack of observers. In such conditions, passive acoustics represents a potential alternative approach. The objective
Paul Nguyen Hong Duc +6 more
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