Localization of a broadband source using a matched-mode procedure in the time-frequency domain

Han Yang Chen, I-Tai Lu

Research output: Contribution to journalArticle

Abstract

In this paper, we present a nonconventional matched-mode procedure for localizing a broadband source in the time-frequency domain. This hybrid coherent and incoherent approach exploits both the temporal and spatial characteristics of the multimode arrival structure at a receiving sensor array, and is a generalization of a previous work [24]. In the previous work, a time-domain technique was developed to deal with narrowband signals coherently. It consists of the following three steps. The first step employs a receiving sensor array to separate the modes by the conventional modal filtering approach. The second step is to estimate the energy and relative arrival times of the various modes which arrive at the receiver. The last step uses the differences of modal travel times to estimate the source range, and uses the ratios of modal energies to estimate the source depth.

Original languageEnglish (US)
Pages (from-to)166-174
Number of pages9
JournalIEEE Journal of Oceanic Engineering
Volume19
Issue number2
DOIs
Publication statusPublished - Apr 1994

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ASJC Scopus subject areas

  • Oceanography
  • Civil and Structural Engineering
  • Electrical and Electronic Engineering
  • Ocean Engineering

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