Results 11 to 20 of about 142,224 (317)
Sensors, 2017 In this paper, an improved azimuth angle estimation method with a single acoustic vector sensor (AVS) is proposed based on matched filtering theory. The proposed method is mainly applied in an active sonar detection system.
Anbang Zhao, Lin Ma, Xuefei Ma, Juan Hui
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Resonance Control Based on Hydrodynamic Analysis for Underwater Direct Drive Wave Energy Converter
Journal of Marine Science and Engineering, 2021 Wave energy has great prospect among many forms of marine renewable energy for its high density and storage. This paper proposes an underwater direct drive wave energy converter (UDDWEC), which is composed of a submerged point absorbing buoy and a linear-
Yang Li +4 more
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A Conformal Driving Class IV Flextensional Transducer
Sensors, 2018 Class IV Flextensional Transducers (FTs) are the most popular among various FTs used as low-frequency and high power underwater acoustic sources. However, an undeniable fact exists in Class IV FTs is that the resonance frequency of breathing mode ...
Tianfang Zhou +5 more
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Autonomous Underwater Robot Fuzzy Motion Control System with Parametric Uncertainties
Designs, 2021 The paper describes the design of a fuzzy motion control system of an autonomous underwater vehicle. A mathematical model of the underwater vehicle is synthesized.
Anton Zhilenkov +2 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 Survey for Oil and Gas Industry: A Review of Close Range Optical Methods
Remote Sensing, 2021 In both the industrial and scientific fields, the need for very high-resolution cartographic data is constantly increasing. With the aging of offshore subsea assets, it is very important to plan and maintain the longevity of structures, equipment, and ...
Bertrand Chemisky +3 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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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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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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Study on the pressure self-adaptive water-tight junction box in underwater vehicle
International Journal of Naval Architecture and Ocean Engineering, 2012 Underwater vehicles play a very important role in underwater engineering. Water-tight junction box (WJB) is one of the key components in underwater vehicle. This paper puts forward a pressure self-adaptive water-tight junction box (PSAWJB) which improves
Haocai Huang +4 more
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