Source localization by 2-D root-MUSIC with `scalar triads' of velocity-hydrophones

Kainam Thomas Wong, Michael D. Zoltowski

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

4 Citations (Scopus)


This paper introduces a new and computationally efficient direction finding (DF) algorithm that (1) exploits the velocity vector-field information of impinging wave front (vs. the scalar wavefield model using only pressure-hydrophones), (2) estimates both elevation angles and azimuth angles, (3) requires rooting only two polynomials and no costly iterative searches. This paper successfully adopts the Root-MUSIC algorithm to L-shaped arrays of triads of co-located but orthogonally oriented velocity hydrophones. Each velocity hydrophone measures one Cartesian component of the acoustic velocity vector-wavefield. In one two-signal scenario, this new algorithm increases estimation accuracy by about 3 folds and lowers the resolution threshold by 25 dB SNR relative to a pressure-hydrophone array of comparable hardware and software complexity.
Original languageEnglish
Title of host publicationMidwest Symposium on Circuits and Systems
Number of pages4
Publication statusPublished - 1 Dec 1996
Externally publishedYes
EventProceedings of the 1996 IEEE 39th Midwest Symposium on Circuits & Systems. Part 3 (of 3) - Ames, IA, United States
Duration: 18 Aug 199621 Aug 1996


ConferenceProceedings of the 1996 IEEE 39th Midwest Symposium on Circuits & Systems. Part 3 (of 3)
Country/TerritoryUnited States
CityAmes, IA

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials

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