• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2010.10a
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• pp.28-30
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• 2010

해양환경에서 장기간 부이(buoy) 관측을 수행할 경우 고정용 앵커에 로프가 감기거나, 부이가 흐름에 의해서 회전을 하면서 부이와 로프가 엉켜서 자료의 수집이 불가능하거나 혹은 장비의 본실이라는 심한 문제가 초래하게 된다. 이러한 기존 부이설치 방법에 따른 문제점을 개선하여 해양자료를 수집할 때 로프의 엉킴을 방지할 수 있는 방안을 도출하였다.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• v.1
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• pp.479-487
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• 2006

우리나라에서는 선박의 항로를 표시하기 위하여 등부표를 설치하여 운영하고 있으나 등부표는 수면하에 침추를 설치하고 체인으로 연결되는 특성으로 인하여 정확한 위치표시가 되지 않아 선박이 항로를 이탈하는 사고가 반발하여, 항해자가 정확한 항행목표를 이용하기어려운 실정에 있어, 이를 개선하기 위하여 시인성과 위치 유동성이 거의 없는 새로운 스파부이 개발방법에 대한 연구와 시험설치 효과를 분석하였다.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.14 no.6
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• pp.215-220
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• 2014

Most of studies on wave height algorithms that are using at buoys describe algorithms using double integral to determine the position data from the acceleration data measured from the accelerometer. but sometimes, it can involve some cumulative error in that process, and result in misjudgment or unstabe system. On the other hand, It is widely known that the motion of fluid particles on or underneath a linear progressive wave is periodic and elliptic. This fact is considered in this article and leads a improved algorithms with no integral processing.

• Journal of Korean Society of Coastal and Ocean Engineers
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• v.32 no.2
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• pp.135-145
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• 2020

Wave observation is widely used to direct observation method for observing the water surface elevation using wave buoy or pressure gauge and remote-sensing wave observation method. The wave buoy and pressure gauge can produce high-quality wave data but have disadvantages of the high risk of damage and loss of the instrument, and high maintenance cost in the offshore area. On the other hand, remote observation method such as radar is easy to maintain by installing the equipment on the land, but the accuracy is somewhat lower than the direct observation method. This study investigates the data quality of MIROS Wave and Current Radar (MWR) installed at Dokdo and improve the data quality of remote wave observation data using the wave buoy (CWB) observation data operated by the Korea Meteorological Administration. We applied and developed the three types of wave data quality control; 1) the combined use (Optimal Filter) of the filter designed by MIROS (Reduce Noise Frequency, Phillips Check, Energy Level Check), 2) Spike Test Algorithm (Spike Test) developed by OOI (Ocean Observatories Initiative) and 3) a new filter (H-Ts QC) using the significant wave height-period relationship. As a result, the wave observation data of MWR using three quality control have some reliability about the significant wave height. On the other hand, there are still some errors in the significant wave period, so improvements are required. Also, since the wave observation data of MWR is different somewhat from the CWB data in high waves of over 3 m, further research such as collection and analysis of long-term remote wave observation data and filter development is necessary.