One- and two-dimensional direction-of-arrival estimation: An overview of search-free techniques

  • Authors:

  • Alex B. Gershman;Michael Rübsamen;Marius Pesavento

  • Affiliations:

  • Communication Systems Group, Institute of Telecommunications, Technische Universität Darmstadt, Merckstr. 25, D-64283 Darmstadt, Germany;Communication Systems Group, Institute of Telecommunications, Technische Universität Darmstadt, Merckstr. 25, D-64283 Darmstadt, Germany;Communication Systems Group, Institute of Telecommunications, Technische Universität Darmstadt, Merckstr. 25, D-64283 Darmstadt, Germany

  • Venue:
  • Signal Processing
  • Year:
  • 2010

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Abstract

One of major challenges in applying traditional subspace-based direction finding techniques to real-time practical problems is in that they normally require an exhaustive spectral search over the angular parameter(s). Therefore, methods avoiding such a computationally demanding spectral search step are of great interest. In this paper, an overview of one- and two-dimensional search-free direction-of-arrival (DOA) estimation methods is presented. Both cases of uniform and non-uniform sensor arrays are addressed.