Frequency Wavenumber Beamforming by Use of the Two Dimensional Fourier Transform.

Abstract

The concept of frequency wavenumber beamforming of a linear array of equispaced receivers is reviewed. The frequency wavenumber spectrum can be evaluated by using a two-dimensional Fast Fourier Transform and the properties of the resulting estimate of the frequency wavenumber spectrum are described. Particular attention is given to the distortion of the spectral power estimates due to leakage of negative frequency components. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1980
Accession Number
ADA093067

Entities

People

  • D. A. Gray

Tags

Communities of Interest

  • Energy and Power Technologies
  • Weapons Technologies

DTIC Thesaurus Topics

  • Arrays
  • Classification
  • Department Of Defense
  • Detection
  • Distortion
  • Fast Fourier Transforms
  • Fourier Transformation
  • Frequency
  • Frequency Domain
  • Linear Arrays
  • Plane Waves
  • Power Spectra
  • Security
  • Signal Processing
  • Spectra
  • Time Series Analysis
  • Two Dimensional

Fields of Study

  • Engineering

Readers

  • Electromagnetic Wave Scattering and Antenna Radiation Engineering
  • Phased Array Antenna Design.