Published In
JASA Express Letters
Document Type
Article
Publication Date
3-15-2013
Subjects
Acoustic signal processing, Acoustic wave interference, Acoustic wave propagation, Acoustic wave transmission
Abstract
Deep vertical line arrays can exploit the reliable acoustic path (RAP), which provides low transmission loss (TL) for targets at moderate ranges, and increased TL for distant interferers. However, nearby surface interference also has favorable RAP propagation and cannot be separated from a submerged target without horizontal aperture. In this work, a physics-based Fourier transform variant is introduced, which achieves depth-based signal separation by exploiting the spatial structure resulting from the coherent addition of the direct and surface-reflected propagation paths present for submerged sources. Simulation results demonstrate depth-based signal separation without requiring knowledge of the ocean environment.
DOI
10.1121/1.4795241
Persistent Identifier
http://archives.pdx.edu/ds/psu/9614
Citation Details
McCargar, Reid, and Lisa M. Zurk. "Depth-based signal separation with vertical line arrays in the deep ocean." The Journal of the Acoustical Society of America 133, no. 4 (2013): EL320-EL325.
Description
Copyright 2013 Acoustical Society of America. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the Acoustical Society of America. The following article appeared in the Journal of the Acoustical Society of America, JASA Express Letters and may be found at http://http://asadl.org/jasa