An Improved Coherent Processor for Ambiguity Function Display.

Abstract

A coherent optical processor for displaying a signal's ambiguity function is described. The required time delay is realized by 45 deg. rotations of two identical input transparencies, and the Doppler shift by a 1-D Fourier transformation. The modulus squared of the entire ambiguity function is displayed in the output plane (Doppler shift-time delay). Examples of the optically computed ambiguity functions for single and double pulse signals are sshown to be in excellent agreement with the theory. Advantages of this approach over various alternative schemes are discussed. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1978
Accession Number
ADA065329

Entities

People

  • John F. Walkup
  • Robert J. Marks Ii
  • Thomas F. Krile

Organizations

  • Texas Tech University

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Air Force
  • Ambiguity
  • Amplitude
  • Doppler Effect
  • Electrical Engineering
  • Engineering
  • Fourier Transformation
  • Information Processing
  • Information Theory
  • Intensity
  • New York
  • Radar Signals
  • Rotation
  • Scientific Research
  • Signal Processing
  • Transparencies

Fields of Study

  • Physics

Readers

  • Calculus or Mathematical Analysis
  • Radar Systems Engineering.