Recently, wideband acoustic technology has been introduced and started to be used in fisheries acoustic surveys in various waters worldwide. Wideband acoustic data provides high vertical resolution, high signal-to-noise ratio and continuous frequency characteristics over a wide frequency range for species identification. In this study, the main characteristics of wideband acoustic systems were elaborated, and a general methodology for wideband acoustic data analysis was presented using data collected in frequency modulation mode for the first time in Republic of Korea. In particular, this study described the data recording method using the mission planner of the wideband autonomous acoustic system, wideband acoustic data signal processing, calibration and the wideband frequency response graph. Since wideband acoustic systems are currently installed on many training and research vessels, it is expected that the results of this study can be used as basic knowledge for fisheries acoustic research using the state-of-the-art system.

서 론
재료 및 방법
    광대역 자율 음향 시스템와 데이터 수록
    램핑(Ramping) 모드
    필터와 데시메이션(Filters and decimation)
    펄스압축처리(Matched filter processing, MF)
    FFT길이
    주파수 스펙트럼
    광대역 자율 음향시스템의 교정 및 현장조사
결과 및 고찰
    광대역 자율 음향 시스템 교정
    광대역 음향 데이터 에코그램 및 주파수 특징
결 론
사 사
References

• 강명희(경상국립대학교 해양경찰시스템학과/해양산업연구소 교수) | Myounghee KANG (Professor, Department of Maritime Police and Production System/Institute of Marine Industry, Gyeongsang National University, Tongyeong 53064, Korea)
• 조윤형(경상국립대학교 실습선 교직원) | Youn-Hyoung CHO (Chief Officer, Training ship, Gyeongsang National University, Tongyeong 53064, Korea)
• 나형술(한국해양과학기술원 극지연구소 책임연구원) | Hyoung sul LA (Principal Research Scientist, Division of Ocean Sciences, Korea Polar Research Institute, Incheon 21990, Korea)
• 손우주(대전과학기술대학교 극지과학과 학생) | Wuju SON (Student, Department of Polar Science, University of Science and Technology, Daejeon, Korea)
• 윤혜주(경상국립대학교 대학원 해양경찰시스템학과 학생) | Hyeju YUN (Student, Department of Marine Police and Production System, Graduate School, Gyeongsang National University, Tongyeong 53064, Korea)
• Aldwin Adrianus(경상국립대학교 대학원 해양경찰시스템학과 학생)
• 안영수(경상국립대학교 해양산업연구소 교수) | Young-Su AN (Professor, Institute of Marine Industry, Gyeongsang National University, Tongyeong 53064, Korea) Corresponding author