Wideband geoacoustic inversion using synchrosqueezing transform

Hong Liu, Kunde Yang, Yuanliang Ma, Qiulong Yang, Liya Xu

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

Abstract

Inversion based on modal characteristics is an effective method to estimate shallow water bottom parameters. The precision of dispersion curve extraction has a significant impact on inversion result. In this paper, a method of combination of warping transform and synchrosqueezing transform is introduced to extract mode dispersion curves. It is applied to process an air-gun impulsive signal during a shallow water sound propagation experiment in the winter. According to the normal mode theory, the arrival time difference of propagation modes computed by dispersion curves are used to invert bottom parameters. Genetic algorithm is used for inversion. In addition, the reliability of inversion result is verified by in suit measurement and a posteriori probability statistics.

Original languageEnglish
Title of host publication2018 OCEANS - MTS/IEEE Kobe Techno-Oceans, OCEANS - Kobe 2018
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781538616543
DOIs
StatePublished - 4 Dec 2018
Event2018 OCEANS - MTS/IEEE Kobe Techno-Oceans, OCEANS - Kobe 2018 - Kobe, Japan
Duration: 28 May 201831 May 2018

Publication series

Name2018 OCEANS - MTS/IEEE Kobe Techno-Oceans, OCEANS - Kobe 2018

Conference

Conference2018 OCEANS - MTS/IEEE Kobe Techno-Oceans, OCEANS - Kobe 2018
Country/TerritoryJapan
CityKobe
Period28/05/1831/05/18

Keywords

  • Geoacoustic inversion
  • Synchrosqueezing transform
  • Warping transform

Fingerprint

Dive into the research topics of 'Wideband geoacoustic inversion using synchrosqueezing transform'. Together they form a unique fingerprint.

Cite this