Test Plan for SSR Antenna Rotation Rate Stabilization.

Abstract

A comprehensive test plan is presented to evaluate the impact of wind and ice loading on the rotation rate stability of a Secondary Surveillance Radar (SSR) antenna used for air traffic control surveillance. Antenna rotation rate variations may introduce errors in the estimate of a position of an intruding aircraft in a passive collision avoidance system used in conjunction with the SSR antenna. The test plan provides a method for determining the statistics of the antenna rotation rate variations. Analytical methods are then presented to assess the effects on CAS performance. The measurement system design, mathematical model development of the antenna system, test data reduction, and analysis programs are presented in detail. Sample calculations of preliminary field data are given and compared with the results obtained from computer simulations. The computer simulations are also intended to predict antenna rotation rate variations at the upper limits of the FAA specified range, which were not generally encountered during normal operations. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1981
Accession Number
ADA109503

Entities

People

  • Janis Vilcans

Organizations

  • John A. Volpe National Transportation Systems Center

Tags

Communities of Interest

  • Air Platforms
  • C4I
  • Energy and Power Technologies
  • Human Systems

DTIC Thesaurus Topics

  • Collision Avoidance
  • Collision Avoidance Systems
  • Computer Programs
  • Computer Simulations
  • Computers
  • Data Analysis
  • Magnetic Tape
  • Mathematical Analysis
  • Mathematical Models
  • Plastic Explosives
  • Radar
  • Radar Beacons
  • Schematic Diagrams
  • Surveillance Radar
  • Test And Evaluation
  • Test Equipment
  • Wind Velocity

Fields of Study

  • Engineering

Readers

  • Aviation Safety and Air Traffic Management
  • Control Systems Engineering.
  • Radar Systems Engineering.