A filming technique using Side Scan SONAR should be varied upon condition in order to obtain high-resolution data. Because the theoretical measurement scope is different from the actual measurement scope. It is possible to obtain the accurate data only after adjusting the water depth, distance from a structure and emission angle. Via the multiple regression analysis of data accumulated through field experiments and relations of 3 variables, and equation was devised.

• 김영석(정회원, ㈜다음기술단, 기업부설연구소, 대리) | Kim, Young-seok
• 박철(정회원, ㈜다음기술단, 대표이사) | Park, Chul
• 최상식(정회원, ㈜다음기술단, 기업부설연구소, 소장) | Choi, Sang-sik