Accession Number : ADA308951

Title :   Gaussian Ray Bundles for Modeling High-Frequency Propagation Loss Under Shallow-Water Conditions.

Descriptive Note : Technical rept.,

Corporate Author : NAVAL UNDERSEA WARFARE CENTER NEWPORT DIV RI

Personal Author(s) : Weinberg, Henry ; Keenan, Ruth E.

PDF Url : ADA308951

Report Date : 15 APR 1996

Pagination or Media Count : 48

Abstract : An acoustic propagation model was developed to analyze high frequency propagation loss under shallow water conditions. The model is based on Gaussian ray bundles, which are similar in form but somewhat simpler than Gaussian beams. After describing the approach, propagation loss predictions are compared with those of various 'standard models' at lower frequencies, where the latter models are accurate and efficient. If Gaussian ray bundles compare well at the lower frequencies, they should perform well at the higher frequencies as ray approximations improve.

Descriptors :   *TRANSMISSION LOSS, *UNDERWATER SOUND SIGNALS, PREDICTIONS, SHALLOW WATER, SOUND TRANSMISSION, RAY TRACING, UNDERWATER ACOUSTICS, GAUSSIAN QUADRATURE.

Subject Categories : Acoustics

Distribution Statement : APPROVED FOR PUBLIC RELEASE