Analysis on the Characteristic of Cross-Correlated Field and Its Potential Application on Source Localization in Deep Water

Kun De Yang, Hui Li, Rui Duan, Qiu Long Yang

Research output: Contribution to journalArticlepeer-review

31 Scopus citations

Abstract

The interference characteristics of cross-correlated broadband fields received by a single hydrophone deployed near the bottom at two different ranges are analyzed in this paper. The ray theory is used to derive the interference pattern, which is a combination of two kinds of interference phenomena. One kind of interference period contains the information of radial source velocity, and the other one is related to source depth. The source motion parameters, including the range and time of closet point of approach (CPA), constant source velocity and source depth, can be estimated by computing the Fourier transform of cross-correlated broadband fields when the existence of a CPA is apparent in the data. If the CPA is not evident, only the radial source velocity and the discrimination of surface versus submerged source can be provided. Note that the proposed method is a broadband technique. Experimental results confirm this single hydrophone estimation method of radial source velocity and source depth.

Original languageEnglish
Article number1750001
JournalJournal of Computational Acoustics
Volume25
Issue number2
DOIs
StatePublished - 1 Jun 2017

Keywords

  • Cross-correlated fields
  • deep water
  • interference characteristic
  • source localization

Fingerprint

Dive into the research topics of 'Analysis on the Characteristic of Cross-Correlated Field and Its Potential Application on Source Localization in Deep Water'. Together they form a unique fingerprint.

Cite this