文献类型：期刊文献

英文题名：Experimental Study of a Broadband Parametric Acoustic Array for Sub-Bottom Profiling in Shallow Water

作者：Qu, Ke[1,2];Zou, Binbin[3];Chen, Jingjing[3];Guo, Yingge[3];Wang, Runtian[3]

机构：[1]Guangdong Ocean Univ, Guangdong Prov Key Lab Coastal Ocean Variat & Dis, Zhanjiang 524088, Peoples R China;[2]Guangdong Ocean Univ, Coll Elect & Informat Engn, Zhanjiang 524088, Peoples R China;[3]Chinese Acad Sci, Shanghai Acoust Lab, Shanghai 200032, Peoples R China

年份：2018

卷号：2018

外文期刊名：SHOCK AND VIBRATION

收录：SCI-EXPANDED(收录号：WOS:000455638800001)、、EI(收录号：20190306385528)、Scopus(收录号：2-s2.0-85059961055)、WOS

基金：This study was supported by the Excellent Young Teachers Program of GDOU (HDYQ2015010) and the Natural Science Foundation of Guangdong Province (2014A030310256).

语种：英文

外文关键词：Acoustics

外文摘要：Broadband parametric acoustic arrays appear to offer advantages for shallow water sub-bottom profiling. In this paper, the performance of a broadband parametric acoustic array system was experimentally evaluated. In tank experiments using the nonlinear parabolic wave (KZK) equation, the directivity, source level, parametric acoustic array length, and penetration depth were evaluated. Based on Berktay's far-field solution, the system's emission signal was designed. According to sea trials of the broadband parametric acoustic array system as designed, a clear sub-bottom profile was obtained. Moreover, buried pipelines in the seabed were effectively detected, verifying the system's effectiveness.