ANALYSIS OF ROUGH-WATER TOW FISH TRIALS (UCLUELET 1991)

Authors
  1. Lee, B.F.
  2. Caulfield, D.D.
Corporate Authors
Defence Research Establishment Pacific, Victoria BC (CAN);Caulfield Engineering Ltd, Oyama BC (CAN)
Abstract
Sonar detection of mine-sized objects requires very stable sonar platforms. Stability is affected by various characteristics of the tow vessel, by the use of depressors and other details of the tow configuration, and by the design of the towed sonar platform (towfish). In this regard, the Defence Research Establishment Pacific acquired a large amount of towfish stability data during an extensive field trial in 1991. During these trials (Ucluetet (1991)) a data set was collected from thirty-three (33) sensors mounted both in the tow vehicle, Dolphin, and the towfish during varying sea states and wave aspects under controlled conditions. This report summarizes the extraction, demultiplexing, analysis procedures and initial modelling results from the large database acquired during these experiments. The processing procedures developed using MATLAB processing algorithms on PC's for processing cost reduction are also reviewed.
Report Number
DREP-CR-92-17 — Contractors Report
Date of publication
01 Jul 1992
Number of Pages
46
DSTKIM No
94-01382
CANDIS No
139250
Format(s):
Hardcopy;Originator's fiche received by DSIS

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