Title :
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
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;
Conference_Titel :
System Theory, 1993. Proceedings SSST '93., Twenty-Fifth Southeastern Symposium on
Conference_Location :
Tuscaloosa, AL
Print_ISBN :
0-8186-3560-6
DOI :
10.1109/SSST.1993.522734
