Optimal Array Geometries for Wideband DOA Estimation

Abstract

We consider the role of array geometry on the Direction of Arrival (DOA) estimating performance of the array where the impinging signal is wideband. We concentrate on arrays that have isotropic performance. An isotropic array is one whose Cramer Rao bound (CRB) on the DOA of a single source is uniform for all angles. We derive the necessary and sufficient conditions on the location of array elements so that the array is isotropic. Both planar arrays and three dimensional arrays are considered. We also present several designs of isotropic planar and volume arrays and give example geometries.

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 2001
Accession Number
ADA410303

Entities

People

  • Randolph L. Moses
  • Ulku Baysal

Organizations

  • Ohio State University

Tags

Communities of Interest

  • Sensors

DTIC Thesaurus Topics

  • Algorithms
  • Ambiguity
  • Angle Of Arrival
  • Antenna Arrays
  • Antennas
  • Arrays
  • Detectors
  • Differential Geometry
  • Electrical Engineering
  • Engineering
  • Frequency
  • Geometry
  • Information Theory
  • Linear Arrays
  • Signal Processing
  • Three Dimensional
  • Two Dimensional

Fields of Study

  • Engineering

Readers

  • Electromagnetic Wave Scattering and Antenna Radiation Engineering
  • Statistical inference.