Closed-form eigenstructure-based direction finding using arbitrary but identical subarrays on a sparse uniform Cartesian array grid

Michael D. Zoltowski, Kainam Thomas Wong

Research output: Journal article publicationJournal articleAcademic researchpeer-review

192 Citations (Scopus)


A sparse uniform Cartesian-grid array suffers cyclic ambiguity in its Cartesian direction-cosine estimates due to the spatial Nyquist sampling theorem. The proposed MUSIC-based or MODE-based algorithm improves and generalizes previous disambiguation schemes that populate the thin array grid with identical subarrays - such as electromagnetic vector sensors, underwater acoustic vector hydrophones, or half-wavelength spaced subarrays.
Original languageEnglish
Pages (from-to)2205-2210
Number of pages6
JournalIEEE Transactions on Signal Processing
Issue number8
Publication statusPublished - 1 Aug 2000
Externally publishedYes

ASJC Scopus subject areas

  • Signal Processing
  • Electrical and Electronic Engineering

Cite this