Investigation of MTD Azimuth Bias of Tangential Targets

Details

• Creators:
  Oliver, Robert G.
• Corporate Creators:
  United States. Department of Transportation. Federal Aviation Administration. Technical Center
• Subject/TRT Terms:
  • Azimuth
  • Values in measurement
  • Radar targets
  • Detectors
  • Aviation
• Publication/ Report Number:
  CT-82-100-76LR
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States
• Edition:
  FAA Technical Letter Report
• Corporate Publisher:
  United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center
• Abstract:
  During May of 1981 tests of the azimuth accuracy of the Moving Target Detector (MTD) were conducted at the Federal Aviation Administration (FAA) Technical Center. These tests consisted of flying an aircraft in an orbital pattern around the radar and comparing the position reported by three FAA sensors; the NIKE tracking radar, the Mode S test bed, and the MTD test bed. The results of these tests confirmed suspicions that under some conditions the MTD radar processor was introducing an azimuth bias in the direction of flight into the reported position of the target. The test indicated that an aircraft traveling in an orbital path at 160 knots and 10 nautical miles (nmi) from the radar was experiencing an azimuth bias of about 10 azimuth units (AU) or .22 degrees which caused the Mode S radar-beacon correlator to interpret the radar and beacon replies as two separate targets. This report shows that the bias can be accounted for by the operation of the clutter map and centroiding algorithms used in the MTD.
• Format:
  PDF
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/91922/dot_91922_DS1.pdf
• File Type:
  [PDF - 143.86 KB]
• Collection(s):
  FAA William J. Hughes Technical Center for Advanced Aerospace
• Main Document Checksum:
  urn:sha-512:6c7ae0410f47baec9fa2bc1350719928ae8f48cdf4f23551a9c35f53e288364031096c58210f86383e09617fc784164fdc366e9cabf64477c478ed9e325c3f3b