Precise Positioning System for Maritime Applications

D.J. Cho, S.G. Park, S.H. Park

Abstract:	The geographical position of the sea floor, the depth of the water, and the heights of bridges, facilities, and vessel mainmasts are currently determined using tidal data that are time-dependent and not very accurate. Many vessels determine overhead clearance following a rule of thumb based on their draft for maritime navigation. As a result, during navigation, the overhead clearance of vessels is not calculated correctly, leading to maritime accidents in which vessel mainmasts collide with overhead facilities, causing not only copious restoration expenses but also environmental pollution due to oil spills and damage to bridges and electric power supply equipment. Disasters due to global warming and rising sea levels have increased casualties as well. As such, a warning system is required for freak events such as tsunami. To avoid such accidents, safe maritime applications are needed to determine the overhead clearance of vessels and wave height in real time using precise positioning technology while traveling through canals and under bridges. This paper proposes architectures for secure safe maritime applications and shows some results of precise positioning research that is currently underway. It also evaluates a software platform for precise positioning using measurements acquired in a test bed.
Published in:	Proceedings of the 2012 International Technical Meeting of The Institute of Navigation January 30 - 1, 2012 Marriott Newport Beach Hotel & Spa Newport Beach, CA
Pages:	1377 - 1382
Cite this article:	Cho, D.J., Park, S.G., Park, S.H., "Precise Positioning System for Maritime Applications," Proceedings of the 2012 International Technical Meeting of The Institute of Navigation, Newport Beach, CA, January 2012, pp. 1377-1382.
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