Abstract
The application of vector sensors is closely associated with the characteristics of vector acoustic field in shallow water, whose study is the foundation for target detection, positioning, and classification. Beginning from Normal Mode theory, theoretical studies are presented about the amplitude of different components of vector acoustic field involving the pressure, horizontal and vertical particle velocity, as well as the phase relation between the pressure and the vertical particle velocity. The main factors considered here are the source depth and the range relative to the vector sensor. These interference structures were observed during the experiment that took place in July of 2013 in South China Sea of nearly 90m depth. The results indicated that the interference structures of vector acoustic field are not only influenced by the sound speed profile but also by seabed parameters including stratification depth and its corresponding acoustic properties. Moreover, the phase relation between the pressure and vertical particle velocity is remarkably impact by these parameters. [Work supported by the National 863 Project (No. 2011AA090502) and Defense Industrial Technology Development Program (B2420132004).]
Published Version
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call