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.

On the integration of through-the-sensor geoacoustic inversion techniques for environmental adaptation schemes in low frequency active sonars

Thumbnail
Abstract
The environmental conditions in shallow water areas are known to strongly affect the performances of low frequency active sonars (LFAS). In particular, interactions of the acoustical field with the seabed interface have been identified as being a key factor that is felt to be well understood previously to any environmental adaptation scheme of those sonars. However, the assessment of the geoacoustic properties of the seabed still constitutes a challenging task. Whenever the seabed data bases are of poor quality in a given area, it is obviously of interest that efficient and robust methodologies be applied in order to assess those properties. One proposed approach to carry on that issue consists in applying geoacoustic inversion methodologies that only make use of the acoustical data available onboard an operational sonar, ie. by only using the data acquired along the receiving horizontal towed line-array of the sonar. This approach, known as through-the sensor technique, probes the environment with the sonar itself and in the same conditions of use as those of the sonar. This paper aims at presenting some practical aspects coming out from the processing of several data set of the BASE'04 experiment that are hoped to assess whether that kind of methodology can be applied within the framework of an ASW operational scenario. In particular, inversions of real data sets are presented from which practical inversion strategies (from a priori parametrization of the inverse problem to final end checks) are proposed.

URI
http://hdl.handle.net/20.500.12489/624

Report Number
NURC-PR-2007-020

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
2007/12

Author(s)
Le Gac, Jean-Claude

Show full item record
NURC-PR-2007-020.pdf (2.202Mb)

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