Coherence in long‐range deep ocean propagation.

Oceanids is a 4-year programme for the technological development of innovative Maritime Autonomous System (MAS) platforms and associated sensors that will include next generation robotic AUVs, sensors and networks to undertake ambitious, long-range, long-endurance deployments in extreme and hazardous environments, such as the deep ocean or under-ice environments. This paper describes the design of two new types of robotic AUVs, the Autosub 2000 Under-Ice and the Autosub Long Range 1500 vehicles that are being developed under the programme. Two key components of the AUVs are described, the autonomy framework and the navigational system, which relies on a newly developed terrain-aided navigation (TAN) system. At-sea results of the TAN are also reported as obtained during long duration operational deployments done in 2017.

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A long term vision for long-range ship-free deep ocean operations: Persistent presence through coordination of Autonomous Surface Vehicles and Autonomous Underwater Vehicles

2012 IEEE/OES Autonomous Underwater Vehicles (AUV) ◽

10.1109/auv.2012.6380753 ◽

2012 ◽

Cited By ~ 26

Author(s):

Christopher R. German ◽

Micheal V. Jakuba ◽

James C. Kinsey ◽

Jim Partan ◽

Stefano Suman ◽

...

Keyword(s):

Long Range ◽

Autonomous Underwater Vehicles ◽

Deep Ocean ◽

Underwater Vehicles ◽

Autonomous Surface Vehicles

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Stochastic ray theory for long-range sound propagation in deep ocean environments

The Journal of the Acoustical Society of America ◽

10.1121/1.423723 ◽

1998 ◽

Vol 104 (4) ◽

pp. 2090-2104 ◽

Cited By ~ 20

Author(s):

Michael G. Brown ◽

John Viechnicki

Keyword(s):

Long Range ◽

Sound Propagation ◽

Deep Ocean ◽

Ray Theory

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Deep Ocean Technology at JAMSTEC

Marine Technology Society Journal ◽

10.4031/mtsj.33.4.6 ◽

1999 ◽

Vol 33 (4) ◽

pp. 49-64 ◽

Cited By ~ 9

Author(s):

Hiroyasu Momma

Keyword(s):

Long Range ◽

Crustal Deformation ◽

Deformation Process ◽

Deep Ocean ◽

Operating Principle ◽

Research Activities ◽

The Earth

Since the establishment of JAMSTEC in 1971, several basic and advanced survey systems have been developed to exploit and study the deep ocean. Presently, 4000-m and 6000-m deep tow systems, 2000-m and 6000-m manned submersibles, 3000-m, 7000-m and 10000-m ROVs, and cabled deep seafloor observatories are in operation. A deep and long range AUV to survey under the ice or hazardous environment, and a wire line reentry system to study crustal deformation process are under development. In addition to the above survey systems, the five-vessel JAMSTEC fleet, R/V Natsushima, Kaiyo, Yokosuka, Kairei and Mirai supports research activities in all of the world’s oceans. The operating principle for research at JAMSTEC in the next decade is “in depth understanding of the Earth and life”.We will further expand research activities by utilizing basic and advanced systems, and deep ocean technology to achieve the above goal.

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