CATHODE RAY TUBE CENTERED HORIZONTAL SITUATION INDICATOR.

Abstract

The study demonstrated that the electro-mechanical elements in the center section of a Horizontal Situation Indicator (HSI) could be successfully replaced by electronically generated symbols on a cathode ray tube, thus allowing the HSI to be used as a multi-mode display for future requirements of the Air Force. The course pointer, vertical deviation bar, horizontal deviation bar, and the TO/FROM indications were generated by digitally programming an Up/Down counter for both the X and Y axis. The outputs were converted to CRT sweep voltages by a digital to analog converter. The generated symbol set was rotated with respect to aircraft heading by resolving the X,Y sweep voltages. A flyable prototype was successfully constructed. (Author)

Document Details

Document Type
Technical Report
Publication Date
May 01, 1968
Accession Number
AD0839574

Entities

People

  • R. S. Sobocinski

Organizations

  • Astronautics Corporation of America

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Air Force
  • Aircrafts
  • Cathode Ray Tubes
  • Computer Programming
  • Converters
  • Horizontal Situation Indicators
  • Indicators
  • Prototypes

Readers

  • Electronics Engineering
  • Human-Computer Interaction (HCI).
  • Radar Systems Engineering.

Technology Areas

  • Microelectronics
  • Microelectronics - Microelectromechanical Systems