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Distance Measuring Equipment

  • AEC DME Program
    • 20 Years Longevityin the MLS/DME area
    • Program funded at greater than than $500K/year over the last 5 years
  • DME System
    • Consists of Airborne Side and Ground Side
    • Utilizes 2-way Ranging
      • Airborne side requests response
      • Ground side transmits response
      • Airborne side measures the distance from total response time
  • Supports Both Navigation and Landing
  • AEC Research Areas
    • Performance Specification FAA-E-2996
    • The baseline equipment specification used by the FAA for DME ground equipment
    • Avionics Engineering Center headed the specification development for the FAA
  • DME Interrogation Rate Measurement System (DIRMS)
    • Proposed to FAA to determine actual amount of DME traffic
    • Highly mobile, setup time of one hour
    • Data collected and analyzed from three sites (Cleveland Corridor, Atlanta, and Chicago O’Hare)
    • Newly-awarded FAA project will involve follow-up data collection in Atlanta and subsequent analysis
  • System Design Approval (SDA)
    • Approval of system to be used by the FAA but not purchased (Non-Fed)
    • One part of the SDA is Stability Demonstration
    • Independent monitoring of tested system
    • Synthesized traffic environment created for tested system
  • Mobile DME Ground Station
    • Supported FAA Spectrum Office DME flight test
    • Fully operational DME ground system
    • Highly mobile, setup time of two hours
    • Sites include Pittsburgh, Norfolk, and Atlantic City
  • Next Generation DME Operation
    • Support of current FAA DME Acquisition effort
    • Support of DME utilization in FAA NextGen Planning
    • Student project through the Ohio Space Grant Consortium OSCG project consisted of NextGen DME test/validation platform