Evaluation of the integrals of target/seabed scattering using the method of complex images

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Authors
  1. Fawcett, J.A.
  2. Lim, R.
Corporate Authors
Defence R&D Canada - Atlantic, Dartmouth NS (CAN);Coastal Systems Station, Panama City FL (US)
Abstract
In this paper the integrals which arise in target/seabed scattering problems are examined. These are the integrals which express the propagation of a spherical harmonic term in a fluid above or below a half-space and the integrals which compute the conversion coefficients of outgoing spherical harmonics into incident spherical harmonics after a seabed reflection. A very efficient and accurate method of computing these integrals, using the method of complex images, is derived. Numerical comparisons with the exact integral expressions show the accuracy of this approach.
Report Number
DRDC-ATLANTIC-SL-2003-053 — Scientific Literature
Date of publication
01 Jun 2003
Number of Pages
10
Reprinted from
J. Acoust. Soc. Am, vol 114, no 3, 2003, p 1406-1415
DSTKIM No
CA034013
CANDIS No
533430
Format(s):
Document Image stored on Optical Disk

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