Direction finding using a biaxial particle-velocity sensor

Yang Song, Kainam Thomas Wong, Yiu Lung Li

Research output: Journal article publicationJournal articleAcademic researchpeer-review

14 Citations (Scopus)


A particle-velocity sensor measures the acoustic particle velocity, instead of the acoustic pressure. A biaxial velocity-sensor (a.k.a. a "u-u probe") consists of two uniaxial velocity-sensors, oriented orthogonally and (possibly) displaced in space. This paper investigates what orientations of the two axes would allow azimuth-elevation direction finding, what closed-form formulas to achieve this direction finding via eigen-based parameter-estimation algorithms, and what the corresponding Cramér-Rao bounds would be.
Original languageEnglish
Pages (from-to)354-367
Number of pages14
JournalJournal of Sound and Vibration
Publication statusPublished - 1 Jan 2015

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanics of Materials
  • Acoustics and Ultrasonics
  • Mechanical Engineering

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