Results 11 to 20 of about 1,875 (179)
Transmission of images by unmanned underwater vehicles [PDF]
Autonomous Robots, 2019 As an acoustic communications medium, water is characterized by frequency dependent attenuation, short range, very low bandwidth, scattering, and multi-path. It is generally difficult to acoustically communicate even terse messages underwater much less images.
Alice Danckaers, Mae L. Seto
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Experimental Investigation of High Speed Cross-Domain Vehicles with Hydrofoil
Journal of Marine Science and Engineering, 2023 Unmanned equipment, such as unmanned underwater vehicles (UUVs) and unmanned surface vehicles (USVs), are widely used in marine science for underwater observation, rescue, military purposes, etc.
Zeqi Shi +9 more
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Study on Dynamic Behavior of Unmanned Surface Vehicle-Linked Unmanned Underwater Vehicle System for Underwater Exploration [PDF]
Sensors, 2020 This paper focuses on motion analysis of a coupled unmanned surface vehicle (USV)–umbilical cable (UC)–unmanned underwater vehicle (UUV) system to investigate the interaction behavior between the vehicles and the UC in the ocean environment. For this, a new dynamic modeling method for investigating a multi-body dynamics system of this coupling system ...
Mai The Vu +6 more
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Performances of Some Autonomous Assets in Maritime Missions [PDF]
TransNav, 2020 The paper deals with key features of some autonomous assets, i.e., unmanned aerial and underwater vehicles used for marine surveillance and reconnaissance missions.
Sanja Bauk
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Study on Unmanned Hybrid Unmanned Surface Vehicle and Unmanned Underwater Vehicle System [PDF]
Journal of Ocean Engineering and Technology, 2020 Underwater operating platforms face difficulties regarding power supply and communications. To overcome these difficulties, this study proposes a hybrid surface and underwater vehicle (HSUV) and presents the development of the platform, control algorithms, and results of field tests.
Han-Sol Jin +6 more
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Underwater Optical-Sonar Image Fusion Systems
Sensors, 2022 Unmanned underwater operations using remotely operated vehicles or unmanned surface vehicles are increasing in recent times, and this guarantees human safety and work efficiency. Optical cameras and multi-beam sonars are generally used as imaging sensors
Hong-Gi Kim, Jungmin Seo, Soo Mee Kim
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Effects of Regular Waves on Propulsion Performance of Flexible Flapping Foil
Applied Sciences, 2018 The objective of the present study is to analyze the effects of waves on the propulsive performance and flow field evolution of flexible flapping foil, and then offer a way to take advantage of wave energy.
Peng Liu +4 more
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Research Progress on Corrosion of Structural Materials for Unmanned Underwater Submersible Vehicles [PDF]
Cailiao BaohuUnmanned underwater vehicles are one of the indispensable tools for people to develop， utilize and explore the ocean， and have broad military application prospects.With the continuous progress and development of science and technology， unmanned ...
ZHANG Qichao, ZHANG Baolong, JIANG Yishan, ZHAO Xin, SONG Penglei, XIAO Feng.
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Journal of Marine Science and Engineering, 2023 In the computer vision field, underwater object detection has been a challenging task. Due to the attenuation of light in a medium and the scattering of light by suspended particles in water, underwater optical images often face the problems of color ...
Zhuo Wang +3 more
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Collaborative Control of Unmanned Underwater Vehicles [PDF]
Journal of Physics: Conference Series, 2021 Abstract This paper targets at urgent issues, which are the search for complex underwater environments and the effective control of underwater seas. Firstly, studies the collaborative control of task-oriented UUV. Secondly, designs reasonable controllers and prove the rendezvous of UUV.
Huailong Wang, Zhenxing Yao, Yinghui Guo
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