Proceedings of the Korea Committee for Ocean Resources and Engineering Conference (한국해양공학회:학술대회논문집)
- 2001.10a
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- Pages.26-31
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- 2001
A Correction Method of the Error in the Survey of Topography Using an Ultrasound Altitude Sonar
초음파 고도계를 이용한 지형지물 측정에 있어서의 잡음에 의한 오차 보정 방법
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Kim, Sea-Moon
(KRISO,KORDI) ;
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Choi, Jong-Su
(KRISO,KORDI) ;
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Lee, Chong-Moo
(KRISO,KORDI) ;
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Hong, Sup
(KRISO,KORDI)
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김시문
(한국해양연구원 해양시스템안전연구소) ;
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최종수
(한국해양연구원 해양시스템안전연구소) ;
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이종무
(한국해양연구원 해양시스템안전연구소) ;
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홍섭
(한국해양연구원 해양시스템안전연구소)
- Published : 2001.10.01
Abstract
In order to measure the distance from the bottom in the ocean we use ultrasound altitude sonars. The manganese nodule pick-up device developed by KRISO is also using an altitude sonar to control the gap between the pick-up head and sea bottom. This paper describes the performance of the altitude sonar by an experimental method. The experiment was performed with four ground models in a small basin, Manganese nodule models and water-bentonite mixture was used for setting up the ground models. Buttorworth filter was applied to remove the noise caused by a servo motor and its controller. The results show that the altitude sonar gives a good estimation of the types and slopes of the bottom as well as the distance.