Closed-form direction finding using collocated but orthogonally oriented higher order acoustic sensors

Yang Song, Kainam Thomas Wong

Research output: Journal article publicationJournal articleAcademic researchpeer-review

14 Citations (Scopus)


This paper introduces new closed-form formulas to estimate an incident source's azimuth-elevation angle-of-arrival, for various combinations of higher order directional acoustic sensors, that are orthogonally oriented in a collocated triad. Also identified are the validity regions for un ambiguous estimation of the azimuth-elevation arrival-angle. These new direction-finding formulas may be used in the open literature's eigen-structure-based direction-finding algorithms, originally designed for (first-order) acoustic particle-velocity sensors.
Original languageEnglish
Article number6193404
Pages (from-to)2604-2608
Number of pages5
JournalIEEE Sensors Journal
Issue number8
Publication statusPublished - 20 Jun 2012


  • Acoustic interferometry
  • acoustic signal processing
  • acoustic velocity measurement
  • array signal processing
  • direction of arrival estimation
  • phased arrays
  • sonar arrays
  • underwater acoustic arrays

ASJC Scopus subject areas

  • Instrumentation
  • Electrical and Electronic Engineering

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