Extracting the time domain Green's function from ocean ambient noise using acoustic vector sensors

被引:5
|
作者
Zhou, Jianbo [1 ,3 ]
Piao, Shengchun [1 ,3 ]
Qu, Ke [2 ]
Iqbal, Kashif [1 ,3 ]
Dong, Yang [1 ,3 ]
Zhang, Shizhao [1 ,3 ]
Zhang, Haigang [1 ,3 ]
Wang, Xiaohan [1 ,3 ]
Liu, Yaqin [1 ,3 ]
机构
[1] Harbin Engn Univ, Acoust Sci & Technol Lab, 145 Nantong St, Harbin 150001, Heilongjiang, Peoples R China
[2] GuangDong Ocean Univ, Coll Elect & Informat Engn, Zhanjiang 524088, Peoples R China
[3] Harbin Engn Univ, Coll Underwater Acoust Engn, 145 Nantong St, Harbin 150001, Heilongjiang, Peoples R China
来源
关键词
D O I
10.1121/1.5011377
中图分类号
O42 [声学];
学科分类号
070206 ; 082403 ;
摘要
A function that closely resembles the two-point time-domain Green's function (TDGF) representing the time delays associated with multipath between the two sensors can be recovered by correlating the noise field measured by two sensors. Here, a technique for extracting the TDGF from ambient ocean noise using acoustic vector sensors is presented. Experimental results suggest that the averaging time to extract TDGF is greatly reduced if sound pressure sensors (hydro-phones) are replaced by acoustic vector sensors. The direct arrival and bottom bounce arrival were extracted successfully with only 1 min of vertical velocity data, while the bottom bounce arrival was not extracted with even 10 min of sound pressure data.
引用
收藏
页码:EL507 / EL511
页数:5
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