Use of acoustic intensity measurements in underwater acoustics (Modern state and prospects)

作     者：Vladimir A. Shchurov Marianna V. Kuyanova(Pacific Oceanological Institute, Far Eastern Branch of Russian Academg of Sciences Russia) 

出 版 物：《Chinese Journal of Acoustics》 (声学学报（英文版）)

年 卷 期：1999年第18卷第4期

页      面：315-326页

学科分类：07[理学] 082403[工学-水声工程] 08[工学] 070206[理学-声学] 0824[工学-船舶与海洋工程] 0702[理学-物理学] 

主　　题：Modern state and prospects Use of acoustic intensity measurements in underwater acoustics 

摘      要：This paper discusses scalar and vector characteristics of underwater ambient noise which were explored by the authors and their colleagues in different regions of the Earth *** measurements presented were performed in 6 Hz - 1000 Hz band, at depths up to 1000 m and wind speeds less than 15 m/s. The following questions are addressed: ratio between edsotropic (coherent) and isotropic (diffusive) parts of ambient noise; noise energy transport and its cotmection with surface waves propagation direction; noise energy flow cancenation by opposite energy flow of signal; signal-to-noise ratio for combined receiver in dynamic noise field. It follows from the results presellted, that further development of underwater intensity measurements opens new opportunities for investigations in the fields of underwater acoustics and oceanology.