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Proceedings Paper

Processing synthetic aperture sonar data from novel hydrophone arrays
Author(s): Rick P. Millane; Peter T. Gough
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Paper Abstract

In synthetic aperture sonar, the highest platform speed is limited as a result of the low speed of sound in water and the requirement for adequate sampling in the along-track direction. This can result in slow seafloor mapping. The highest allowable platform speed can be increased by using a linear array of hydrophones. The signal-to-noise can also be improved by using multiple sets of hydrophone arrays. Maximum-likelihood estimation of images using data from sets of hydrophone arrays that each under-sample the underlying signal to different degrees is described. Simulations for synthetic aperture sonar imaging show that this improves the images obtained over those from a single array.

Paper Details

Date Published: 16 November 2000
PDF: 8 pages
Proc. SPIE 4123, Image Reconstruction from Incomplete Data, (16 November 2000); doi: 10.1117/12.409262
Show Author Affiliations
Rick P. Millane, Univ. of Canterbury (New Zealand)
Peter T. Gough, Univ. of Canterbury (New Zealand)

Published in SPIE Proceedings Vol. 4123:
Image Reconstruction from Incomplete Data
Michael A. Fiddy; Rick P. Millane, Editor(s)

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