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Review on Underwater Positioning for Deep Towing Vehicles
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  • Journal title : Ocean and Polar Research
  • Volume 27, Issue 3,  2005, pp.335-339
  • Publisher : Korea Institute of Ocean Science & Technology
  • DOI : 10.4217/OPR.2005.27.3.335
 Title & Authors
Review on Underwater Positioning for Deep Towing Vehicles
Lee, Gun-Chang; Ko, Young-Tak; Yoo, Chan-Min; Chi, Sang-Bum; Kim, Jong-Uk; Ham, Dong-Jin;
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The underwater positioning system is important in interpreting data that are acquired from towing vehicles such as the deep-sea camera (DSC) system. Currently, several acoustic positioning systems such as long baseline (LBL), short baseline (SBL), and ultra short baseline (USBL), are used for underwater positioning. The accurate position of DSC, however, could not be determined in a R/V Onnuri unequipped with any of these underwater positioning systems. As an alternative, the DSC position was estimated based on the topography of towing track and cable length in the cruises before 1999. The great uncertainties, however, were found in the areas of flat bottom topography. In the 2003 and 2004 cruises these uncertainties were reduced by calculating the position of DSC with the cable length and seafloor depth below the vessel. The Japanese cruises for Mn-nodule used a similar estimation method for the DSC positioning system with a CTD sensor. Although the latter can provide better information for the position of DSC, the USBL underwater positioning system is strongly recommended for establishing better positioning of DSC and other towing devices.
underwater positioning system;Long Baseline;Short Baseline;Ultra Short Baseline;deep-sea camera system;
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