ARCTIC OCEAN TRIALS OF A TRACKPOINT II ULTRASHORT BASELINE ACOUSTIC POSITIONING SYSTEM

Authors
  1. Black, M.R.
Corporate Authors
Defence Research Establishment Pacific, Victoria BC (CAN)
Abstract
Trials of an ORE International Trackpoint II Ultrashort Baseline Acoustic Positioning System were carried out in the Arctic Ocean as part of Iceshelf 92. Good operation at 5.8 km range was obtained with a water depth of 530 m. The system operated poorly at a location near shore where the water depth was 70 m at the Trackpoint master station and 250 m at the remote transponder station at 4.5 km range from the master station. Significant bearing errors were observed during some trials and the reasons for these are not well understood. It was determined that signals that follow paths that reflect from the under-ice surface or the sea bottom are not strong enough to provide operation of this system at a range of 4.5 km. Direct paths of 9.9 km length were also too weak to provide system operation.
Keywords
ULTRASHORT BASELINE;TRACKPOINT II;ACOUSTIC POSITIONING SYSTEM
Report Number
DREP-TM-94-9 — Technical Memorandum
Date of publication
01 Feb 1994
Number of Pages
31
DSTKIM No
94-04816
CANDIS No
142086
Format(s):
Hardcopy;Originator's fiche received by DSIS

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