Mathematics: Numerical Solution of Inverse Problems in Acoustics

Abstract

A numerical algorithm for a three dimensional inverse acoustic scattering problem was considered. From the knowledge of several far field patterns of the Helmholtz equation a closed surface aD representing the boundary of an unknown obstacle D is reconstructed. The obstacle D is supposed to be hard (i.e. Neumann boundary condition) or characterized by an acoustic impedance (i. e. mixed boundary condition).

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Document Details

Document Type
Technical Report
Publication Date
Apr 30, 1992
Accession Number
ADA267402

Entities

People

  • Francesco Zirilli

Organizations

  • University of Camerino

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Acoustic Impedance
  • Acoustic Scattering
  • Acoustic Waves
  • Acoustics
  • Algorithms
  • Applied Mathematics
  • Boundaries
  • Boundary Value Problems
  • Differential Equations
  • Equations
  • Far Field
  • Helmholtz Equations
  • Mathematics
  • Radiation
  • Scattering
  • Three Dimensional
  • Wave Functions

Fields of Study

  • Mathematics

Readers

  • Calculus or Mathematical Analysis
  • Electromagnetic Wave Scattering and Antenna Radiation Engineering
  • Wave Propagation and Nonlinear Chaotic Dynamics.