Application of an improved self-starter to geoacoustic inversion

被引：33

作者：

Cederberg, RJ

Collins, MD

机构：

[1] Naval Research Laboratory, Washington

[2] North Dakota State University, Fargo, ND

[3] Renssalaer Polytechnic Institute, Troy, NY

[4] Department of Mathematical Sciences, RPI

[5] Acoustics Division, Naval Research Laboratory, Washington, DC

[6] Acoustical Society of America, Soc. of Indust. and Appl. Math.

[7] Massachusetts Inst. of Technology, Cambridge, MA

[8] Stanford University, Stanford, CA

[9] Northwestern University, Evanston, IL

[10] Nav. Ocean R. and D. Activity, Stennis Space Center, MS

[11] SYNTEK Eng. and Comp. Systems, Inc., Rockville, MD

[12] Acoustical Society of America, Soc. for Indust. and Appl. Math., American Geophysical Union

来源：

IEEE JOURNAL OF OCEANIC ENGINEERING | 1997年 / 22卷 / 01期

关键词：

coordinate rotation; geoacoustic inversion; parabolic wave equation; self-starter; simulated annealing; split-step Pade solution;

D O I：

10.1109/48.557544

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

The self-starter is improved using the operator of the split-step Pade solution, In addition to providing greater stability and being applicable closer to the source, the improved self-starter is an efficient forward model for geoacoustic inversion, It is necessary to solve only O(10) tridiagonal systems of equations to obtain the acoustic field on a vertical array located O(10) wavelengths from a source, This experimental configuration is effective for geoacoustic inverse problems involving unknown parameters deep in the ocean bottom, For problems involving depth-dependent acoustic parameters, the improved self-starter can be used to solve nonlinear inverse problems involving O(10) unknown sediment parameters in less than a minute on the current generation of workstations.

引用

页码：102 / 109

页数：8

共 37 条

[1] HIGHER-ORDER PARAXIAL WAVE-EQUATION APPROXIMATIONS IN HETEROGENEOUS MEDIA [J].