• Proceedings of the Korean Society of Marine Engineers Conference
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• 2011.06a
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• pp.241-241
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• 2011

실제 해상운용시험을 통해 취득한 단일빔/다중빔 측면주사음탐기 초음파영상을 비교하여 다중빔 측면 주사음탐기의 경우 운용 시 제약조건을 얼마나 향상시켰는지 이 논문에서 소개한다.

• Electronics and Telecommunications Trends
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• v.28 no.6
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• pp.167-179
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• 2013

측면주사음탐기(side scan sonar) 센서는 해저면의 영상을 실시간으로 탐색하는 장비로서 해양탐사 및 지질조사, 해저통신 및 어초조사, 기뢰 및 잠수정 탐색 등 해양탐사와 관련한 대표적 장비라고 할 수 있다. 센서는 해저와 목표물을 표시하기 위해 소나 플랫폼의 움직임을 사용하며, 동작주파수 범위는 20kHz~500kHz이다. 이 주파수는 요구되는 깊이와 목표물의 크기에 의해서 결정된다. 센서는 수직으로 $45^{\circ}$, 수평으로 $2^{\circ}$ 정도의 신호전파 방사각도 폭을 가진다. 최근에는 해양탐사와 개발을 위해 빠른 스캔속도와 정확한 정보, 고해상도의 영상을 얻기 위해 해저면에 대한 다중빔 영상센서의 핵심기술로 활용되면서 그 활용성과 중요성이 점차 증가되고 있다. 본고에서는 측면주사소나 센서의 기본 원리 및 종류, 디중빔측면주사소나 기술동향, 응용분야의 사례를 소개함으로써, 국내 기반기술 및 상용화 개발이 취약한 측면주사 음탐기 센서에 대한 이해를 돕고자 한다.

• Journal of Ocean Engineering and Technology
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• v.29 no.5
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• pp.373-379
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• 2015

Side Scan Sonar (SSS) is capable of acquiring real-time data for seabed scouring, bathymetry, mine countermeasurement, etc. In a shipyard, an SSS package is utilized to measure the water depth and find debris in the sea because a sufficient water depth and non-interruption have to be ensured before implementing an underwater installation such as a large thruster. This paper presents the application and operation method of an SSS for the construction of an offshore project.

• Proceedings of the Korean Society of Surveying, Geodesy, Photogrammetry, and Cartography Conference
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• 2004.11a
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• pp.539-544
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• 2004

In this study, locational information data acquisited by using the side scan sonar which is more precise than traditional submarine terrain' survey equipment. And the result of exploration through the object area(the East sea), accurate submarine terrain could be deciphered by sounded image. Also, in the future, side scan sonar's application will be maximized for the submarine terrain's sediment investigation to design or construction of ocean facilities.

• Proceedings of the Korean Society of Marine Engineers Conference
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• 2006.06a
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• pp.317-318
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• 2006

The towfish oi a side scan sonar is an equipment that search images of the bottom surface of the sea in real time. It is a typical equipment that is related to a sea investigation such as a geological survey, seabed communication cable and power line cable placing repair investigation, fish breeding ground investigation, sea purification, relic and mineral investigation, and mine and submarine search. It used to find objects and Investigate on the seabed surface. But, recently, it is used to sea purification and geological survey that require information of the correct surface of the seabed. So, it needs various filtering technique and image processing techniques development to acquire high resolution image. Therefore, this research develops a side scan sonar using multi-beam sensors that supply various information with the fast scan speed and correct high resolution that is not a simple underwater investigation equipment.

• The Sea:JOURNAL OF THE KOREAN SOCIETY OF OCEANOGRAPHY
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• v.8 no.2
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• pp.203-209
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• 2003

In this study, the configuration and tension of a towing cable for side-scan sonar are predicted in an ambient flow and at an unsteady towing condition. The governing equation of three-dimensional dynamic analysis for a flexible cable is solved using a finite difference method. We successfully predict the configuration and tension of a side-scan sonar and designed the towing system. It is found in static analyses that the side-scan sonar must be towed to keep a its stable depth at a reasonable speed. The study also reveals in the transient analyses that the dominant component affecting the top tension is the tangential drag force for the larger towing speed than the critical speed, and the soft weight of a towed instrument for the smaller towing speed than. It should be maneuvered for a towing vessel with good consideration for the impact effect in a cable due to tension peak when a towing speed is suddenly increase. The developed program can be applicable for three-dimensional dynamic analysis of a towing system for various marine survey instruments.