An Analog FFT Beamformer for Acoustic Applications

Abstract

An analog FFT beamformer has been designed, built and tested for one- and two-dimensional arrays. In addition, a focusing capability has been built and tested. The focusing system is used to remove the signal wavefront curvature due to close sources. This technology is applicable to a wide variety of array configurations, providing beamformers that are inexpensive, reliable, small, low power and have high data throughput rates.

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Document Details

Document Type
Technical Report
Publication Date
Mar 21, 1978
Accession Number
ADA057057

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies
  • Materials and Manufacturing Processes
  • Sensors

DTIC Thesaurus Topics

  • Acoustic Propagation
  • Acoustics
  • Amplifiers
  • Computations
  • Diffraction
  • Discrete Fourier Transforms
  • Dynamic Range
  • Fourier Series
  • Frequency
  • Hybrid Systems
  • Images
  • Light Emitting Diodes
  • Operational Amplifiers
  • Phase Shift
  • Plane Waves
  • Printed Circuits
  • Two Dimensional

Fields of Study

  • Engineering
  • Physics

Readers

  • Phased Array Antenna Design.