Measurement and Analysis of Sound Speed Dispersion during SAX04: FY04 Annual Report for Office of Naval Research Award N00014310883

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Authors
  1. Osler, J.C.
  2. Hines, P.C.
Corporate Authors
Defence R&D Canada - Atlantic, Dartmouth NS (CAN)
Abstract
This project is developing equipment and techniques to measure sound speed dispersion in the 1 to 10 kHz frequency band during the Office of Naval Research SAX04 experiment. Historically, it has been difficult to make these measurements below 10 kHz. As a result, there is a paucity of experimental results with large uncertainties. Measurements in this frequency band are critical as this is where the most pronounced sound speed dispersion is expected and the predictions of various sediment acoustic models differ significantly. The objectives of this project will be achieved by pursuing complementary approaches to making the sound speed dispersion measurements, including: angle of refraction; acoustic impedance; reflection loss; and time of flight. Work completed in FY04 includes: numerical simulations; analysis of the APEX99 NATO data set; implementation of array element localization software; equipment design, procurement, and assembly; calibrations; field testing; and staging for SAX04.

Il y a un résumé en français ici.

Keywords
Sediment acoustics;sound speed dispersion;impedance;vector sensors
Report Number
DRDC-ATLANTIC-ECR-2004-208 — External Client Report
Date of publication
01 Oct 2004
Number of Pages
26
DSTKIM No
CA025659
CANDIS No
523336
Format(s):
CD ROM

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