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An evaluation of a ray‐tracing volume source formulation of wave scattering

 

作者: R. D. Murch,  

 

期刊: The Journal of the Acoustical Society of America  (AIP Available online 1994)
卷期: Volume 96, issue 3  

页码: 1881-1886

 

ISSN:0001-4966

 

年代: 1994

 

DOI:10.1121/1.410200

 

出版商: Acoustical Society of America

 

关键词: RAY TRACING;SOUND WAVES;SCATTERING;BORN APPROXIMATION;ACCURACY;CYLINDRICAL CONFIGURATION

 

数据来源: AIP

 

摘要:

An evaluation of a ray‐tracing volume source formulation of wave scattering is presented. The basis of the formulation is to combine the physically realistic interpretation of propagation as rays with an exact diffractive representation of scattering such as the volume source formulation. The formulation has been used previously in inverse scattering but an evaluation of its accuracy has not been performed for the corresponding direct problem. In this paper the formulation of the technique is formally presented and a numerical evaluation of its accuracy is performed. Results are provided for a variety of cylindrical objects and comparisons are presented with exact results and also results from the Born approximation. The results indicate that indeed dramatic improvements over the Born approximation are possible.

 

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