2-D Acousto-Optic Signal Processors for Simultaneous Spectrum Analysis and Direction Finding

Abstract

2-D Fourier transforming acoustooptic signal processors, for simultaneous direction finding (DF) and spectrum analysis of radar signals over a wide instantaneous bandwidth, are shown to be useful for Radar Electronics Support Measures (ESM) applications. A comprehensive treatment on the analysis and design of two general 2-D acoustooptic architectures is provided. In one architecture, a linear antenna array is employed, and in the other a novel circular antenna array with a Butler matrix beamformer is used. Emphasis is placed on the DF characteristics of both architectures. The effects of scaling factor, acoustic transducer height, Gaussian laser illumination profile, RF input noise, amplitude and phase tracking errors on the DOA pattern produced by each architecture are addressed. Design criteria and comparison between the two architectures are also provided.

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1990
Accession Number
ADA232148

Entities

People

  • Jim P. Lee

Organizations

  • Defence Research and Development Canada

Tags

Communities of Interest

  • Advanced Electronics
  • Air Platforms
  • Energy and Power Technologies
  • Sensors

DTIC Thesaurus Topics

  • Acoustic Arrays
  • Acoustic Waves
  • Analyzers
  • Angle Of Arrival
  • Detection
  • Detectors
  • Diffraction
  • Direction Finding
  • Laser Beams
  • Lasers
  • Measurement
  • Modulators
  • Optical Modulators
  • Signal Processing
  • Spectrum Analysis
  • Statistical Analysis
  • Two Dimensional

Fields of Study

  • Engineering
  • Physics

Readers

  • Enterprise Information Systems Architecture and Joint Command Capability Interoperability Support.
  • Optical Physics and Photonics.
  • Phased Array Antenna Design.

Technology Areas

  • Directed Energy
  • Microelectronics
  • Microelectronics - Microelectromechanical Systems