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Two schemes for forward scattering detection: An experimental demonstration

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

Forward scattering always occurs when an intruder moves into an underwater area between a source and a receiver. The detection of this forward-scattered signal is a challenge because a strong direct blast overwhelms the forward-scattered signal. The key for the detection is to suppress the direct blast and extract the aberration from the background acoustic field. Two schemes of the detection are proposed, one with a principal component analysis on the vertical beam output, and another with adaptive cancellation of direct blast on the received signals. Both the schemes are validated in a lake experiment. The results show that the field was up to 10 dB above the background when the intruder is crossing, compared with 3 dB maximum around the direct blast with direct matched filtering.

Original languageEnglish
Title of host publicationOCEANS 2016 MTS/IEEE Monterey, OCE 2016
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781509015375
DOIs
StatePublished - 28 Nov 2016
Event2016 OCEANS MTS/IEEE Monterey, OCE 2016 - Monterey, United States
Duration: 19 Sep 201623 Sep 2016

Publication series

NameOCEANS 2016 MTS/IEEE Monterey, OCE 2016

Conference

Conference2016 OCEANS MTS/IEEE Monterey, OCE 2016
Country/TerritoryUnited States
CityMonterey
Period19/09/1623/09/16

Keywords

  • Acoustic aberration
  • Adaptive cancellation
  • Forward scattering
  • Principal component analysis

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