Range-dependent matched field source localization and tracking in shallow water on a continental slope region of the North-East Pacific Ocean.

Simple item page
dc.contributor.authorTaillefer, Martin Lucen_US
dc.date.accessioned2024-08-15T20:07:34Z
dc.date.available2024-08-15T20:07:34Z
dc.date.copyright1998en_US
dc.date.issued1998
dc.degree.departmentSchool of Earth and Ocean Sciences
dc.degree.levelMaster of Science M.Sc.en
dc.description.abstractSource tracking using a vertical line array (VLA) is not possible in general unless the cylindrical symmetry of the acoustic field is broken. This thesis describes the analysis of matched-field (MF) source localization data from an experiment over the continental slope off Vancouver Island. A CW source was towed along a radial track over the slope out to ranges of 5.5 km, and then along a navigational arc in water depths from 380 m at the array to 750 m. The data were collected using a multi-element vertical line array (MEVA). The MEVA is a 16-element array with sensors evenly spaced at depths between 90 m and 315 m. The environment was modelled using an adiabatic normal mode approximation that accounted for elastic wave propagation in the sediment layers. A bathymetric database of the experimental region was compiled to provide a reliable set of depth contours used for computing the acoustic replica-fields. Using a Bartlett MF processor, the source was tracked in range, depth and bearing over the duration of the track, with Bartlett processor values of up to 0.88. The analysis and results presented here demonstrate remarkably good tracking performance indicating that the slope is effective in breaking the symmetry of the acoustic field to provide bearing resolution with a VLA.
dc.format.extent127 pages
dc.identifier.urihttps://hdl.handle.net/1828/19857
dc.rightsAvailable to the World Wide Weben_US
dc.titleRange-dependent matched field source localization and tracking in shallow water on a continental slope region of the North-East Pacific Ocean.en_US
dc.typeThesisen_US

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
TAILEFER_Martin_L_MSc_1998_933371.pdf
Size:
35.9 MB
Format:
Adobe Portable Document Format
Download

Collections

Electronic Theses and Dissertations (ETD)
 
University of Victoria Libraries

We acknowledge and respect the Lək̓ʷəŋən (Songhees and Esquimalt) Peoples on whose territory the university stands, and the Lək̓ʷəŋən and W̱SÁNEĆ Peoples whose historical relationships with the land continue to this day.