Normal Mode Theory for Sonar Waves in Layered Media. 1. A General Method Applied to Linear Profiles.

Abstract

A revision of conventional representations of acoustic fields produced by a point source in a stratified medium (seawater) is undertaken. Innovations include (a) a model of point sources based on analytic continuations of the conventional delta functions, (b) the use of this concept to evaluate mode excitation functions through a complete expansion of the source function, (c) a derivation of normal modes of propagation as field functions representing the response to individual excitation functions, (d) interpretation in terms of transmission line theory. (Author)

Document Details

Document Type
Technical Report
Publication Date
Dec 31, 1973
Accession Number
AD0773558

Entities

People

  • William Altar

Tags

DTIC Thesaurus Topics

  • Acoustic Fields
  • Acoustic Phenomena
  • Complex Variables
  • Delta Functions
  • Excitation
  • Functions (Mathematics)
  • Transmission Lines

Fields of Study

  • Physics

Readers

  • Computational Modeling and Simulation
  • Electromagnetic Wave Scattering and Antenna Radiation Engineering