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Frequency Dependence of High-Frequency Bottom Reflection Loss Model  

박순식 (한양대학교 지구해양과학과 해양음향연구실)
윤관섭 (한양대학교 지구해양과학과 해양음향연구)
나정열 (한양대학교 지구해양과학과 해양음향연구)
석동우 (한양대학교 지구해양과학과 해양음향연구)
주진용 (에스브이(주)
조진석 (한양대학교 지구해양과학과 해양음향연구실)
Publication Information
The Journal of the Acoustical Society of Korea / v.23, no.5, 2004 , pp. 362-369 More about this Journal
Abstract
The High-frequency (30 ∼ 120 ㎑) bottom reflection loss at rough water-sediment interface is affected by the gram size distribution of the sediments. The roughness of the bottom surface is represented by "acoustical roughness. g/sub R/" The grain size of sandy sediments is g/sub R/∼O(1) and the dependence as a function of frequency. We suggest the modified bottom reflection loss model (HYBRL model , HanYang university Bottom Reflection Loss model) that include in the deviation of the reflection loss as a function of the grain size distribution and frequency dependence. And bottom reflection loss model of frequency dependence and deviation of bottom properties is verified by water tank and field experiments.
Keywords
Bottom reflection loss; HanYang university Bottom Reflection Loss model; Grain size distribution; Acoustical roughness;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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