NDLI: Variability of observed reverberation and estimated sea-floor scattering strength

Content Provider	IEEE Xplore Digital Library
Author	Barlett, M. Brown, W.E. Porter, A.
Copyright Year	2008
Description	Author affiliation: Appl. Res. Labs., Univ. of Texas at Austin, Austin, TX (Barlett, M.; Brown, W.E.; Porter, A.)
Abstract	Sea-floor acoustic scattering strength measurements are useful for understanding the observed reverberation in active sonar systems and for estimating sea-floor bottom properties. Observed reverberation and resulting measured scattering strength frequently show a high degree of spatial and temporal variability. This variability may be observed on short, sample-to-sample, times scales from a single time series, or it may manifest itself as longer term variability of measurements made at a single location or over a survey area. Causal mechanisms for this variability include a dynamic fluctuating ocean media, multipath, complex bathymetry and the use of non-stationary sensors for making these measurements. The results presented in this paper leverage previous work by the Sonar Acoustic Boundary Loss Estimation (SABLE) project. Several examples of how this approach can be used to investigate variability in derived Lambert coefficients and scatter strengths are presented for a dataset constructed from sonar beam data obtained over a limited geographic area. These examples are illustrative of approaches that can potentially be developed as a means of quality control in processing of large datasets from non-research sonar systems.
Starting Page	1
Ending Page	10
File Size	658992
Page Count	10
File Format	PDF
ISBN	9781424426195
DOI	10.1109/OCEANS.2008.5151871
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-09-15
Publisher Place	Canada
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Reverberation Acoustic scattering Acoustic measurements Sea measurements Sonar measurements Area measurement Time measurement Oceans Oceanographic techniques Acoustic sensors
Content Type	Text
Resource Type	Article

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