浅水声速剖面的反演方法与实验验证  

Inversion of Sound Speed Profile for Shallow-Water Environment with Experimental Verification

作　　者：沈远海[1] 马远良[1] 屠庆平[1] 姜小权 朱治富[1] 

机构地区：[1]西北工业大学航海工程学院,陕西西安710072

出　　处：《西北工业大学学报》2000年第2期212-215,共4页Journal of Northwestern Polytechnical University

基　　金：国家自然科学基金资助 !( 69672 0 18)

摘　　要：提出一种在浅水域进行声速剖面反演的方法。通过将某地浅水声速剖面用经验正交函数(EOF)进行表示 ,利用一个很短的垂直线列阵接收声源信号 ,估计信号的多途到达角结构 (DOA) ,以到达角结构的误差为代价函数 ,对实测的声速剖面进行了反演。实验结果表明The paper presents a method for inversion of sound speed profile (SSP) in shallow water environment. An experiment has been conducted in a shallow water area for the inversion. Empirical orthogonal functions (EOF) are derived to express the SSP, and a short vertical linear array is adopted to receive the source signal. The multi path direction of arrival (DOA) structure is estimated from the received data, and the cost function of inversion is defined as the error of the DOA structure in comparison to its calculated counter part through ray modeling. Experimental results show that the proposed method is feasible.

关 键 词：反演 声速剖面 水声工程 声场环境 

分 类 号：TB56[交通运输工程—水声工程] O422.2[理学—物理]