2차원적 음원추적에 관한 연구

• 영문명: A Study on Acoustic Sound Tracking System on 2-Dimensional Plain
• 발행기관: 한국항해항만학회
• 저자명: 문성배(Serng-Bae Moon) 전승환(Seung-Hwan Jun)
• 간행물 정보: 『한국항해항만학회 학술대회논문집』1996 추계학술발표회 논문집, 117~124쪽, 전체 8쪽
• 주제분류: 공학 > 해양공학
• 파일형태: PDF
• 발행일자: 1996.09.30

영문 초록

When navigating in or near an area of restricted visibility, it is necessary to be heard the whistle, bell and/or the siren of lighthouses or ships at times. Even though we can get the brief informations about the property of sound, the direction and range of a sound radiator, it is not easy to get the accurate informations for decision making. Generally the audio frequency is known as 16-20,000Hz, but the earshot is shorten and discrimination of sound is more difficult when there is some noise. The sound pressure is 60dB at the moment when human speaks 1 meter away. Usually the noise pressure in a silent room is 40dB and 60dB on the quiet street. In this study, we suggest the basic algorithm to trace the direction and range of the source radiator using the signal received through not a physical sense but the microphone sensors and a series of signal processing.

목차

1. 서언

2. 계측원리

3. 결언 및 연구과제

4. 참고문헌