Terrain Contour Matching (TERCOM): Sensitivity to Heading and Ground-Speed Errors.

Abstract

A simulation of the TERCOM navigation system is presented and the effects of a number of error sources are studied. Two error sources are course heading and ground-speed variation. A third source is the fact that the radar altimeter samples the terrain at geographical coordinates lying between coordinates that specify the locations of terrain altitudes stored in the on-board computer. The latter is shown to be an insignificant error with the 400-ft distance between sample points. Course heading and ground-speed errors are shown to be critical problems when they occur simultaneously. Maximum acceptable errors are approximately two degrees course heading at + or - 3% expected ground speed. (Author)

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Document Details

Document Type
Technical Report
Publication Date
May 01, 1978
Accession Number
ADA056127

Entities

People

  • Mark W. Cannon Jr.

Organizations

  • Air Force Research Laboratory

Tags

Communities of Interest

  • Air Platforms
  • Biomedical

DTIC Thesaurus Topics

  • Accuracy
  • Air Force
  • Air Force Facilities
  • Aircrafts
  • Altitude
  • Artificial Intelligence
  • Biomedical Research
  • Computer Programs
  • Computers
  • Flight
  • Flight Simulations
  • Ground Speed
  • Miss Distance
  • Navigation
  • Radar Altimeters
  • Simulations
  • Vehicles

Readers

  • Geospatial Intelligence and Artificial Intelligence Analytics
  • Radar Systems Engineering.
  • Statistical inference.