Efficient numerical evaluation of the Kirchhoff field scattered from a hollow circular cylinder

Author

Scharstein, Robert W.

Author_Institution

Dept. of Electr. Eng., Univ. of Alabama, Tuscaloosa, AL, USA

fYear

1993

fDate

7-9 Mar 1993

Firstpage

22

Lastpage

23

Abstract

A convenient and simple algorithm is derived for computing the Kirchhoff approximation for the field scattered by an acoustically hard tubular obstacle. Special Weber function evaluations are explicitly avoided through the use of the fast Fourier transforms (FFT) approximation for Fourier coefficients. Selected scattered diagram predictions are contrasted with the accurate solution of the Neumann boundary value problem

Keywords

acoustic wave scattering; boundary-value problems; electromagnetic wave scattering; fast Fourier transforms; Kirchhoff approximation; Neumann boundary value problem; acoustically hard tubular obstacle; fast Fourier transforms; hollow circular cylinder; numerical evaluation; scattered field; Acoustic measurements; Acoustic scattering; Acoustic waves; Approximation algorithms; Boundary value problems; Electromagnetic scattering; Engine cylinders; Kirchhoff´s Law; Surface acoustic waves; Surface treatment;

fLanguage

English

Publisher

ieee

Conference_Titel

System Theory, 1993. Proceedings SSST '93., Twenty-Fifth Southeastern Symposium on

Conference_Location

Tuscaloosa, AL

ISSN

0094-2898

Print_ISBN

0-8186-3560-6

Type

conf

DOI

10.1109/SSST.1993.522734

Filename

522734