Effect of the Geoacoustic Parameters on the Range-Frequency Interference in Shallow-Water Waveguide

被引：4
|
作者：
Hahn, Jooyoung [1 ]
Kim, Byoung-Nam [1 ]
Choi, Bok Kyoung [1 ]
Kim, Bong-Chae [1 ]
Park, Kyoungju [2 ]
机构：
[1] Korea Ocean Res & Dev Inst, Uljin Gun 767813, Gyeongbuk, South Korea
[2] Korean Naval Acad, Jinhae 645797, Gyungnam, South Korea
来源：
JAPANESE JOURNAL OF APPLIED PHYSICS | 2010年 / 49卷 / 10期
关键词：
PROPAGATION;
D O I：
10.1143/JJAP.49.100211
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
In this study, range-frequency interference is analyzed in the propagation of acoustic waves in shallow-water waveguides. The interference pattern is examined using image processing techniques to produce the waveguide-invariant parameter beta. The variability of the beta-distributions of four geoacoustic parameters in a sediment layer and four typical sediment types is characterized by skewness and kurtosis. The result shows that a low value of skewness and a high value of kurtosis appear in the hard-sediment case and a high value of skewness and a low value of kurtosis appear in the soft-sediment case. This analysis technique will be useful in geoacoustic parameter inversion. (C) 2010 The Japan Society of Applied Physics
引用
收藏
页码：1002111 / 1002113
页数：3
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