• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2018.11a
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• pp.368-369
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• 2018

This paper presents a current status and perspectives of Operation system of SMART-Navigation and LTE-Maritime as major communication infrastructure of SMART-Navigation.

• Proceedings of the Korea Committee for Ocean Resources and Engineering Conference
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• 2002.10a
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• pp.174-180
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• 2002

A virtual reality technology for multipurpose numerical simulation is developed to reproduce and investigate a variety of ocean environmental problems in a 3D-Numerical Wave Tank. The governing equations for solving incompressible fluid motion are Navier-Stokes equation and continuity equation, and the Marker-Density function technique is adopted to implement the fully-nonlinear free-surface kinematic condition. The marine environmental situations, i.e. waves, currents, wind, etc., are reproduced by use of multi-segmented wavemaker on the basis of the so-called "snake-principle". In this paper, some numerical reproduction techniques for regular and irregular waves, multi-directional waves, Bull's-eye wave, wave-current, and solitary wave are presented, and a model test in motion with large amplitude of roll angle is conducted in the developed 3D-NWT, using a overlaid grid system.

• Journal of Positioning, Navigation, and Timing
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• v.11 no.4
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• pp.239-244
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• 2022

R-Mode is terrestrial based Global Navigation Satellite System (GNSS) backup radio navigation technology which used existing maritime information service infrastructure. It has advantages on reduce the cost and reutilize the frequency resource. In this paper, we propose a method to develop a medium-frequency (MF) band R-Mode transmitting station by utilizing the currently operating Differential GNSS (DGNSS) reference station infrastructure. To this end, the considerations for co-operating the DGNSS reference station and the MF R-Mode transmitting station are analyzed. In this process, we also analyze what is necessary to configure the communication system as a navigation system for range measurement. Based on the analysis result, MF R-Mode transmitting station system is designed and architecture is proposed. The developed system is installed in the field, and the performance evaluation results is presented.

• Proceedings of the Korea Society of Environmental Toocicology Conference
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• 2001.11a
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• pp.77-77
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• 2001

• Proceedings of the Korea Society of Environmental Toocicology Conference
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• 2001.11a
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• pp.85-85
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• 2001

• Proceedings of the Korean Society of Coastal and Ocean Engineers Conference
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• 2000.09a
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• pp.182-187
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• 2000

Laboratory for Coastal and Ocean Dynamics Studies at Sungkyunkwan University and Department of Physical Oceanography, Institute of Oceanology, Chinese Academy of Sciences has been working on cooperative studies on ocean circulation. (omitted)

• Proceedings of the Korea Society of Environmental Toocicology Conference
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• 2001.11a
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• pp.92-92
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• 2001

• Proceedings of the Korea Society of Environmental Toocicology Conference
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• 2001.11a
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• pp.94-94
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• 2001

• Proceedings of the Korea Society of Environmental Toocicology Conference
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• 2001.11a
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• pp.95-95
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• 2001

• Proceedings of the Korea Society of Environmental Toocicology Conference
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• 2001.11a
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• pp.96-96
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• 2001