Display Format Effects on Precision Tracking Performance, Describing Functions, and Remnant.

Abstract

As part of a program to develop a comprehensive theory of manual control displays, six display formats were used by three instrument-rated pilots to regulate against random disturbances with a controlled element of Y sub c = K/s(s + 2) (which requires mild lead equalization), under both foveal and 10 deg parafoveal viewing conditions. The six display formats were: CRT Line, CRT Thermometer Bar, 14-Bar Quantized on a CRT, a Rotary Dial and Pointer (meter movement), and two variations of a Moving Scale Tape-Drive (C-141 VSI). All were scaled to equivalent movement and apparent brightness. Measures included overall performance, describing functions, error remnant power spectra, critical instability scores, and subjective display ratings. Other controlled elements and parafoveal angles were partially investigated. The results show that the main effect of display format is on the loop closure properties. (Author)

Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1971
Accession Number
AD0731580

Entities

People

  • Henry R. Jex
  • R. Wade Allen
  • Raymond E. Magdaleno

Tags

DTIC Thesaurus Topics

  • Brightness
  • Diffraction
  • Equalization
  • Human Factors Engineering
  • Instability
  • Power Spectra
  • Precision
  • Spectra
  • Thermometers
  • Wave Phenomena

Readers

  • Adaptive Control and Estimation with Uncertainty in Dynamic Systems.
  • Atmospheric Science / Meteorology, specifically Wind Wave Turbulence.
  • Human-Computer Interaction (HCI).