Follow Us:

View Item 
  •   CMRE Open Library Home
  • CMRE Publications
  • Reprints
  • View Item
  •   CMRE Open Library Home
  • CMRE Publications
  • Reprints
  • View Item
JavaScript is disabled for your browser. Some features of this site may not work without it.

Separability of scattering and reflection parameters in reverberation inversion

Thumbnail
Abstract
A premise of reverberation inversion is that one can separate geoacoustic reflection properties from scattering properties since their effects on reverberation are distinguishable. Some doubt has been cast on this premise in the case of long range reverberation by the fact that simple theory suggests that the two are inseparable for many scattering laws, even in a refracting environment. Instead a recent paper [Harrison, C.H.,
 
Nielsen, P.L., J. Acoust. Soc. Am., 121, 108-119, (2007)] has shown that by modifying the directionality of the source or receiver one can effectively alter the propagation in situ whilst leaving the scattering law unchanged. In particular, using a dipole directivity results in a
 
different dependence of reverberation on range, and therefore provides an additional
 
measurement. Dividing this 'dipole reverberation' by the usual 'monopole reverberation'
 
yields a quantity that clearly does not depend on the strength of the scattering (although it does depend on its angle behaviour). One can therefore separate geoacoustic and scattering properties. This idea has been tested on experimental data and could, in principle be applied to dipole-steered horizontal triplet arrays.
 

URI
http://hdl.handle.net/20.500.12489/623

Report Number
NURC-PR-2007-019

Source
Originally published in: Proceedings of the 2nd International Conference and Exhibition on Underwater Acoustics Measurements: Technologies and Results, 25-29 June 2007, IACM-FORTH, Heraklion, Greece

Collections
  • Reprints

Date
2007/11

Author(s)
Harrison, Chris H.
; 
Nielsen, Peter L.

Show full item record
NURC-PR-2007-019.pdf (1.570Mb)

Browse

All of CMRE Open LibraryCommunities & CollectionsBy Issue DateAuthor(s)TitlesSubjectsTypeThis CollectionBy Issue DateAuthor(s)TitlesSubjectsType

My Account

LoginRegister

  • Contact Us
  • Send Feedback
  • Employment
  • Procurement
  • Fact Sheets
  • News Feed
  • Conditions of Use
  • Publications Feed
  • Press Release
  • News Archive
  • STO (Science and Technology Organization)
  • Find us on Facebook
  • Follow us on Twitter
  • Watch us on Youtube
  • Webmail
 

 

© 2018 STO-CMRE
Powered by KnowledgeArc