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Computation of Underwater Acoustic Field Using Acoustic Impedance as an Input Parameter for the Ocean Bottom  

Lee Seongwook (부경대학교 음향진동공학연구소)
Oh Taekhwan (한양대학교 해양환경과학과)
Na Jungyul (한양대학교 해양환경과학과)
Lee Phil-Ho (국방과학연구소 제2체계개발본부)
Yoon Jong Rak (부경대학교 전자컴퓨터정보통신공학부)
Publication Information
The Journal of the Acoustical Society of Korea / v.25, no.1, 2006 , pp. 1-6 More about this Journal
Abstract
The Possibility of using acoustic impedance as an input Parameter for computation of underwater acoustic field in shallow waters was investigated. Analysis of the acoustic reflection from the ocean bottom with shear wave effect showed that acoustic impedances below the critical grazing angle have nearly angle-independent property and could be approximated with a single value of near-grazing impedance $Z_0$. Computations of the Propagation loss based on the concept of 'effective depth' indicate that near-grazing bottom acoustic impedances could be used as an input parameter for simulation of the acoustic fields in shallow waters.
Keywords
Underwater Acoustic Field; Bottom Acoustic Impedance; Input Parameter;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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