ESPRIT-based 2-D direction finding with a sparse uniform array of electromagnetic vector sensors

Michael D. Zoltowski, Kainam Thomas Wong

Research output: Journal article publicationJournal articleAcademic researchpeer-review

224 Citations (Scopus)


Aperture extension (interferometry baseline extension) is achieved in this novel ESPRIT-based two-dimensional (2-D) arrival angle estimation scheme using a sparse (a.k.a., thin or thinned) uniform rectangular array of electromagnetic vector sensors spaced much farther apart than a half-wavelength. An electromagnetic vector sensor is composed of six spatially co-located, orthogonally oriented, diversely polarized antennas, distinctly measuring all six electromagnetic-field components of an incident multisource wavefield. Each incident source's direction of arrival (DOA) is estimated from the source's electromagnetic-field vector component and serves as a coarse reference to disambiguate the cyclic phase ambiguities in ESPRIT's eigenvalues when the intervector sensor spacing exceeds a half wavelength. Simulations demonstrate the significant performance gain realizable by this method for radar and wireless mobile fading-channel communications.
Original languageEnglish
Pages (from-to)2195-2204
Number of pages10
JournalIEEE Transactions on Signal Processing
Issue number8
Publication statusPublished - 1 Aug 2000
Externally publishedYes

ASJC Scopus subject areas

  • Signal Processing
  • Electrical and Electronic Engineering

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