Accession Number:

AD0723845

Title:

On the Integral Formulation of Scalar Wave Scattering by Arbitrary Surfaces,

Descriptive Note:

Corporate Author:

TEXAS UNIV AUSTIN APPLIED RESEARCH LABS

Personal Author(s):

Report Date:

1970-12-17

Pagination or Media Count:

52.0

Abstract:

A critical analysis of the integral formulation of scalar wave reflection, diffraction, and scattering by arbitrary surfaces is presented. For the exterior problem the potential formulation is found to be superior to the Greens function and the Helmholtz formula representations of the problem. The potential method leads to a self-consistent specification of the boundary values, and results in terms which in the case of scattering are clearly identifiable as the singly- and multiply-scattered field components. Only the singly-scattered field term is specialized to a form that is convenient for reflected or scattered pressure and intensity calculations. Stochastic techniques are introduced, and it is shown in a formal way how shadowing can be rigorously included in the theory. Author

Subject Categories:

  • Theoretical Mathematics
  • Acoustics
  • Optics
  • Radiofrequency Wave Propagation

Distribution Statement:

APPROVED FOR PUBLIC RELEASE