Accession Number:

ADA276622

Title:

The Decomposition of Guided Waves into Spherical Representations and Near-Field Effects on Target Scattering.

Descriptive Note:

Final rept.

Corporate Author:

NAVAL RESEARCH LAB STENNIS SPACE CENTER MS

Personal Author(s):

Report Date:

1993-01-01

Pagination or Media Count:

14.0

Abstract:

We wish to develop a scheme that will enable us to predict the nearfield that results from the interaction of a submerged object with a guided wave for a general object in a general waveguide. The method will be based on the extended boundary condition EBC method T-matrix of Waterman and a new normal mode method that allows one to decompose the normal-mode solutions into a spherical representation suitable for operating on the spherical tensors that arise from the T-matrix method. Of particular importance is the fact that the resulting formulation allows one to couple the resulting near-field solution to an outgoing normal mode series that leads to the general waveguide solution. Acoustic scattering, Shallow water, Waveguide propagation.

Subject Categories:

  • Acoustic Detection and Detectors
  • Acoustics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE