MEASUREMENT AND ANALYSES OF ASR-4 SYSTEM ERROR. PART II: ANALYSES

The positional accuracy of aircraft radar targets as displayed in an Air Trafffic Control airport surveillance radar system (ASR-4) was sought as one of the inputs essential for determining aircraft separation standards. Using inputs from the Atlantic City (N.J.) ASR-4, the radar targets of two test aircraft were photographed as displayed in both primary and beacon modes on scan-converted and PPI displays. The displayed positions were related to simultaneous precision track from single-target instrumentation radars (EAIR and TAIR) to derive error measures for range, azimuth, and separation. The analysis program employed a least squares analysis of variance on some 17 response variables for a set of six system control variables. The data clearly demonstrated the strong interdependency of the individual components that contribute to radar system separation error by the presence of positive correlation coefficients and frequent statistically significant F ratios for the main effects of the six control variables. Furthermore, it was noted that the tails of the distribution of the radar separation error response measure were not normally distributed. (Author)

• Corporate Authors:

  NATIONAL AVIATION FACILITIES EXPERIMENTAL CENTER

  ATLANTIC CITY, NJ  United States 
• Authors:
  • BUSCH, A C
  • Bradbury, P W
• Publication Date: 1973-8

Media Info

• Pagination: 152 p.

Subject/Index Terms

• TRT Terms: Air traffic control; Aircraft separation; Airport operations; Aviation safety; Errors; Information display systems; Information processing; Pattern recognition systems; Radar; Radar targets; Reliability; Search radar
• Identifier Terms: U.S. Federal Aviation Administration
• Old TRIS Terms: Airport radar systems; Faa
• Subject Areas: Aviation; Operations and Traffic Management;

Filing Info

• Accession Number: 00050774
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: FAA-NA-72-87 Final Rpt
• Files: NTIS
• Created Date: Jan 31 1974 12:00AM