BASE 04 Transmission Loss Measurement and Modelling

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Authors
  1. Calnan, C.
Corporate Authors
Defence R&D Canada - Atlantic, Dartmouth NS (CAN);XWave, Halifax NS (CAN)
Abstract
A previous contract resulted in the addition of the ray theory program Bellhop to the reverberation inversion program BREVER. This was done to allow inversion of reverberation results calculated from acoustic data recorded during the BASE 04 trials. However tests with Bellhop using parameters from the BASE 04 site indicated shortcomings in that program. The current contract began with tests runs of CASS, a potential Bellhop replacement for reverberation inversions. The test results indicated that CASS would work properly for the analysis area. Accordingly, BREVER was enhanced to allow it to also use CASS, and reverberation inversion was performed. The inversion results were used to model transmission loss, and these modelled values were compared to transmission loss data calculated from measured data. Because of this contract the BREVER User’s Guide was expanded to describe the use of the CASS-enabled version of the program.

Il y a un résumé en français ici.

Keywords
Inversion;Towed Array
Report Number
DRDC-ATLANTIC-CR-2006-108;XWAVE-1010610 — Contractor Report
Date of publication
01 Oct 2006
Number of Pages
54
DSTKIM No
CA029394
CANDIS No
527691
Format(s):
CD ROM

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