Preliminary results for glider localization in the Beaufort Duct using broadband acoustic sources at long range

The relatively shallow sound speed minimum known as the Beaufort Duct, present during the Canada Basin Acoustic Propagation Experiment, enabled transmissions from acoustic sources moored within the duct to Seaglider receivers at ranges up to 480 km. The receptions from these broadband sources were u...

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Bibliographic Details
Published in:OCEANS 2019 MTS/IEEE SEATTLE
Main Authors: Graupe, Cristian E., Van Uffelen, Lora J., Webster, Sarah E., Worcester, Peter F., Dzieciuch, Matthew A.
Format: Text
Language:unknown
Published: DigitalCommons@URI 2019
Subjects:
AUVs
Localization
Long-range acoustics
canada basin
Online Access:https://digitalcommons.uri.edu/oce_facpubs/511
https://doi.org/10.23919/OCEANS40490.2019.8962637
Description
Summary:The relatively shallow sound speed minimum known as the Beaufort Duct, present during the Canada Basin Acoustic Propagation Experiment, enabled transmissions from acoustic sources moored within the duct to Seaglider receivers at ranges up to 480 km. The receptions from these broadband sources were used to position the Seagliders at the time of reception both using ranges estimated in real-time and by the acoustic arrival matching (AAM) method, which infers ranges from comparisons with acoustic propagation models in post-processing. Preliminary results indicate that a posteriori data errors are reduced by a factor of 4 or 5 by implementing the AAM localization method.

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