Acoustic Scattering from Large Aspect Ratio Elastic Targets

Abstract

This paper applies the spheroidal T-matrix approach of Dr. Roger H Hackman described in his paper 'The Transition Matrix for Acoustic and Elastic Wave Scattering in Prolate Spheroidal Coordinates', Journal of the Acoustic Society of America, 75(1), PP. 35-45 to describe the scattering from large aspect ratio targets. Due to the limits of double precision arithmetic in the computation of the spheroidal wave functions, these methods are limited to frequencies below kL/2 = 30.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Oct 01, 2002
Accession Number
ADA411409

Entities

People

  • Gary S. Sammelmann

Tags

Communities of Interest

  • Sensors
  • Weapons Technologies

DTIC Thesaurus Topics

  • Acoustic Scattering
  • Aspect Ratio
  • Bessel Functions
  • Computations
  • Coordinate Systems
  • Differential Equations
  • Eigenvalues
  • Elastic Waves
  • Equations
  • Frequency
  • Helmholtz Equations
  • Mathematics
  • Partial Differential Equations
  • Scattering
  • Two Dimensional
  • Wave Equations
  • Wave Functions

Fields of Study

  • Physics

Readers

  • Approximation Theory.
  • Electromagnetic Wave Scattering and Antenna Radiation Engineering
  • Military History