Enhanced Capability and Support of PASTET for Trial Q325 – Project Completion Report

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Authors
  1. Giles, P.
  2. Brooke, G.
  3. Kilistoff, S.
Corporate Authors
Defence R&D Canada - Atlantic, Dartmouth NS (CAN);General Dynamics Canada. Ottawa, ON (CAN)
Abstract
As part of the Rapid Environmental Assessment (REA) project, DRDC Atlantic has been examining the sensitivity of underwater acoustic propagation to various physical parameters. These parameters include, but are not limited to: the water’s sound speed profile, the bathymetry of the seabed, the number and thickness of seabed layers, and the absorption of these layers. This report describes the latest progress in the development of a software application, known as Portable Acoustic Sensitivity Transmission and Evaluation Tool (PASTET). PASTET will be used to evaluate the sensitivity of acoustic propagation to variability and/or uncertainty in various environmental parameters. The algorithms used in the application were derived from the previous work done by DRDC Atlantic in the investigation of geoacoustic sensitivity. PASTET can be run on a personal computer by a non-expert with limited training. PASTET estimates the expected transmission loss and its variability and/or uncertainty for a specified scenario at a specified location. The data required to describe the acoustic environment are obtained, where possible, from DRDC Atlantic’s REA Data Base (READB), and the inputs can be augmented from other databases. In addition to the expected transmission loss, PASTET provides an estimate of the uncertainty in the result, and a means of estimating which physical parameters most impact the uncertainty. This report describes the latest work on PASTET, which was initiated to suppor

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Report Number
DRDC-ATLANTIC-CR-2010-009 — Contractor Report
Date of publication
01 Nov 2010
Number of Pages
74
DSTKIM No
CA037354
CANDIS No
537068
Format(s):
Electronic Document(PDF)

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