Collision Avoidance Ground Station Analysis

Abstract

Three different collision avoidance system (CAS) analyses were performed; ground station clock requirement, Loran-C accuracy and comparisons, and CAS monitoring requirements. Cesium beam standards are evaluated to determine their time accuracy, the number required to attain and maintain time to within 0.5 microseconds, 3 sigma. The Loran-C system is reviewed to determine the potential time accuracy attainable by monitoring the Loran-C transmission. The results are then compared to the accuracy attainable from satellite, television, WWV and WWVB time transfer. The CAS equipment has certain built-in tests. These tests, as well as additional external monitors, are reviewed to categorize the test type and effectiveness.

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1974
Accession Number
AD0786683

Entities

People

  • John L. Mohr

Tags

Communities of Interest

  • Energy and Power Technologies
  • Space

DTIC Thesaurus Topics

  • Accuracy
  • Aircrafts
  • Clocks
  • Collision Avoidance
  • Delay Lines
  • Electromagnetic Wave Propagation
  • Frequency
  • Frequency Standards
  • Ground Stations
  • Loran
  • Measurement
  • Modulation
  • Oscillators
  • Repetition Rate
  • Test Equipment
  • United States
  • Wave Propagation

Readers

  • Positioning, Navigation, and Timing (PNT) Technology.
  • Robotics and Automation.
  • Systems Analysis and Design

Technology Areas

  • Space