Description and Evaluation of the Broad-Band Underwater Recording Buoy System

Description et Évaluation en Conditions Réelles d’un Système de Bouées d’Enregistrement sous-Marin Large Bande

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Authors
  1. Trevorrow, M.V.
  2. Vagle, S.
  3. Hall-Patch, N.
Corporate Authors
Defence R&D Canada - Atlantic, Dartmouth NS (CAN);Institute of Ocean Sciences, Sidney BC (CAN)
Abstract
This report documents the design and features of a new, four-element broad-band underwater recording buoy system. These buoys, named the Broad-band Underwater Recording Buoys (BURBs), were built to facilitate medium-frequency underwater acoustic transmission experiments and for measurement of moving vessel acoustic signatures. Each BURB supports two wide-band hydrophones, digitized with 16-bit resolution at 40,000 samples per second each, and recorded onto internal hard-drive. Each BURB records its differential GPS position at 1 s intervals. Total operational duration is in excess of 36 hours of continuous operation. In an alternate configuration, each BURB can acquire four-channel data from a new 3-axis acoustic intensity sensor. This report presents details on the BURB design, construction, acoustic calibration, and operation. Example results from acceptance sea-trials conducted in March and April 2005 are presented.

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Keywords
Vessel acoustic signatures
Report Number
DRDC-ATLANTIC-TM-2005-231 — Technical Memorandum
Date of publication
01 Dec 2005
Number of Pages
46
DSTKIM No
CA027169
CANDIS No
525210
Format(s):
Electronic Document(PDF)

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