A Comparison of 'Pulse-Stretch' and Conventional Marking Techniques.

Abstract

Psychophysical methods were employed in comparing proposed pulse-stretch display marking techniques, in which the length of a display mark is some function of the processor output, with intensity (Z-axis) modulated displays. The comparisons were made on the basis of singal detectability using observer ROC curves. The simulation of these AN/SQS-26 A-scan displays was done with the aid of a digital computer. Both constant and variable inteisity pulse-stretch marking were investigated. The matched display using only intensity modulation was found to be superior to those using pulse-stretch marking for signal-to-noise ratios encompassing minimum detectable levels. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Mar 12, 1968
Accession Number
ADA066664

Entities

People

  • M. B. Montgomery

Organizations

  • Tracor

Tags

Communities of Interest

  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Abstracts
  • Computer Simulations
  • Computers
  • Contracts
  • Detection
  • Digital Computers
  • Dynamic Range
  • False Alarms
  • Films
  • Intensity
  • Modulation
  • Numbers
  • Observers
  • Probability
  • Rejection
  • Simulations
  • Warning Systems

Fields of Study

  • Physics

Readers

  • Human-Computer Interaction (HCI).
  • Nuclear Civil Defense.
  • Radar Systems Engineering.

Technology Areas

  • AI & ML
  • AI & ML - Bayesian Inference