Sponsor
We thank the Department of Homeland Security for sponsoring J.S.A. and for the experimental deployment under Grant Award 2008-ST-061-ML0001. We also thank Portland State University for funding.
Published In
Journal of the Acoustical Society of America Express Letters
Document Type
Article
Publication Date
6-2013
Subjects
Underwater acoustics, Boats, Underwater acoustics -- Mathematics
Abstract
Previous studies [Tiemann et al., J. Acoust. Soc. Am. 120, 2355–2365 (2006)] have reported the localization of marine mammals in 3-D from their clicks using multipath arrivals. Bathymetric variations were advantageously used to predict multipath arrival times with a raytracer. These arrivals are directly discernible from the time series for impulsive sources, such as whale clicks, but extension of the method to continuous broadband sources presents additional complications. By pulse compressing noise emitted from a small boat using two hydrophones,the hyperbolic direct-arrival ambiguity can be refined in both range and bearing. Acoustic-derived results are validated with target GPS measurements.
DOI
10.1121/1.4809771
Persistent Identifier
http://archives.pdx.edu/ds/psu/12059
Citation Details
Gebbie, J., Siderius, M., McCargar, R., Allen, J. S., & Pusey, G. (2013). Localization of a noisy broadband surface target using time differences of multipath arrivals. Journal Of The Acoustical Society Of America, 134(1), EL77-EL83.
Description
This is the publisher's final pdf. 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 J. Acoust. Soc. Am. 134, EL77 and may be found at: http://dx.doi.org/10.1121/1.4809771