Detection of a cylindrical cavity in solid based on acoustic wave scattering

학위논문(박사) - 한국과학기술원 : 기계공학과, 1993.2, [ x, 93 p. ]한국과학기술원 : 기계공학과

레이 트레이싱 기법을 이용한 실내의 음향특성 추정

학위논문(석사) - 한국과학기술원 : 기계공학과, 1987.2, [ vi, 53, [1] p. ]In this study, the ray tracing computer program has been developed and subsequently, the echogram is obtained. From this echogram, we find the sound decay curves at the various positions of receiver. The speech intelligibility parameters ($C_80$ and Speech Transmission Index) are also calculated. Comparison of the computer simulation with the results of experiment is very favourable. We can also extend this program to the multi-sound source system. And this ray tracing program can be used to predict the various acoustical characteristics of room and to design architectures such as rooms, theaters and concert halls.한국과학기술원 : 기계공학과