Beam Forming Property of Coded Acoustic Signal for Long-Range Acoustic Navigation of a Cruising Autonomous Underwater Vehicle

2010 ◽  
Vol 49 (7) ◽  
pp. 07HG13
Author(s):  
Yoshitaka Watanabe ◽  
Hiroshi Ochi ◽  
Takuya Shimura ◽  
Takehito Hattori
Keyword(s):  
Long Range ◽  
Acoustic Signal ◽  
Autonomous Underwater Vehicle ◽  
Underwater Vehicle ◽  
Beam Forming ◽  
Acoustic Navigation

Conceptual Design and Key Technology Development of a Long-Range Underwater Vehicle Traveling Over Thousands Kilometers

2009 ◽  
Author(s):  
Hiroshi Yoshida ◽  
Sawa Takao ◽  
Tadahiro Hyakudome ◽  
Shojiro Ishibashi ◽  
Hiroshi Ochi ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Research And Development ◽  
Long Range ◽  
Autonomous Underwater Vehicle ◽  
Technology Development ◽  
Underwater Vehicle ◽  
Cell System ◽  
Polymer Electrolyte Fuel Cell ◽  
Power Sources ◽  
Long Time

The underwater platform which has enough ability to cruise globally and freely in vast deep sea will allow us to make the survey of entire oceans. We aim to develop an underwater platform which travels and surveys across entire oceans for the research into the global change, ocean-trench earthquake, and biodiversity and so on. We have developed the first prototype underwater platform or the long-range cruising autonomous underwater vehicle (LCAUV) named Urashima since 1998. The vehicle powered by a polymer electrolyte fuel cell system marked the world record of cruising distance of 317 kilometers in 2005. The vehicle has the following specifications: length; 10 m, weight; 10 tons, maximum depth ratings; 3500 m, maximum cruising speed; 3.2 knots, and endurance; 60 hours. This large vehicle has large user payload of a few hundreds kilograms. In 2007, we started research and development of the elemental technologies which will be utilizes for development of the second generation LCAUV to achieve cruising range of over 3000 kilometers. The technologies under research and development are power sources, navigation methods, communication methods, vehicle controllers, materials for body, and advanced sensors for highly resolution survey. The fuel cell and secondary battery hybrid system is had to improve at energy efficiency to generate electricity as possible for long time running with limited energy. A high accuracy inertial navigation system and an underwater positioning system being covered area of over 1000 km are under development. A synthesized aperture sonar is also under development.

Design of Novel Shaftless Pump-Jet Propulsor for Multi-Purpose Long-Range and High-Speed Autonomous Underwater Vehicle

2016 ◽  
Vol 52 (7) ◽  
pp. 1-4 ◽  
Author(s):  
Yang Shen ◽  
Pengfei Hu ◽  
Shuanbao Jin ◽  
Yingsan Wei ◽  
Rensheng Lan ◽  
...  
Keyword(s):  
Long Range ◽  
High Speed ◽  
Autonomous Underwater Vehicle ◽  
Underwater Vehicle

scholarly journals Finding and Tracking a Phytoplankton Patch by a Long-Range Autonomous Underwater Vehicle

2021 ◽  
pp. 1-9
Author(s):  
Yanwu Zhang ◽  
Michael A. Godin ◽  
Brian Kieft ◽  
Ben-Yair Raanan ◽  
John P. Ryan ◽  
...  
Keyword(s):  
Long Range ◽  
Autonomous Underwater Vehicle ◽  
Underwater Vehicle

scholarly journals A Numerical and Experimental Study on the Hull-Propeller Interaction of A Long Range Autonomous Underwater Vehicle

2019 ◽  
Vol 33 (5) ◽  
pp. 573-582 ◽  
Author(s):  
Ya-xing Wang ◽  
Jin-fu Liu ◽  
Tie-jun Liu ◽  
Zhi-bin Jiang ◽  
Yuan-gui Tang ◽  
...  
Keyword(s):  
Experimental Study ◽  
Long Range ◽  
Autonomous Underwater Vehicle ◽  
Underwater Vehicle

scholarly journals Autonomous Tracking and Sampling of the Deep Chlorophyll Maximum Layer in an Open-Ocean Eddy by a Long-Range Autonomous Underwater Vehicle

2020 ◽  
Vol 45 (4) ◽  
pp. 1308-1321 ◽  
Author(s):  
Yanwu Zhang ◽  
Brian Kieft ◽  
Brett W. Hobson ◽  
John P. Ryan ◽  
Benedetto Barone ◽  
...  
Keyword(s):  
Long Range ◽  
Autonomous Underwater Vehicle ◽  
Underwater Vehicle ◽  
Open Ocean ◽  
Deep Chlorophyll Maximum ◽  
Chlorophyll Maximum

Sea-Whale 2000: A Long-range Hybrid Autonomous Underwater Vehicle for Ocean Observation

2019 ◽  
Author(s):  
Yan Huang ◽  
Jianan Qiao ◽  
Jiancheng Yu ◽  
Zhenyu Wang ◽  
Zongbo Xie ◽  
...  
Keyword(s):  
Long Range ◽  
Autonomous Underwater Vehicle ◽  
Underwater Vehicle
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