Frequency invariant beamforming for two-dimensional and three-dimensional arrays

Wei Liu, Stephan Weiss, John G. McWhirter, Ian K. Proudler

Research output: Journal article publicationJournal articleAcademic researchpeer-review

49 Citations (Scopus)

Abstract

A novel method for the design of two-dimensional (2-D) and three-dimensional (3-D) arrays with frequency invariant beam patterns is proposed. By suitable substitutions, the beam pattern of a 2-D or 3-D arrays can be regarded as the 3-D or 4-D Fourier transform of its spatial and temporal parameters. Since frequency invariance can be easily imposed in the Fourier domain, a simple design method is derived. Design examples for the 2-D case are provided.

Original languageEnglish
Pages (from-to)2535-2543
Number of pages9
JournalSignal Processing
Volume87
Issue number11
DOIs
Publication statusPublished - Nov 2007

Keywords

  • 3-D arrays
  • Fourier transform
  • Frequency invariant beamforming
  • Linear arrays
  • Planar arrays

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Software
  • Signal Processing
  • Computer Vision and Pattern Recognition
  • Electrical and Electronic Engineering

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