AN/UPX-41(C) Digital Interrogator System Compatibility with the National Airspace System

In 2012, the Navy requested spectrum certification for the shipboard AN/UPX-41(C) Digital Interrogator System, Software Version 5.5 with Mode 5. Current operating conditions for the Navy’s AN/UPX-41(C) are the same as restrictions imposed on the AN/UPX-37 digital Identification Friend or Foe (IFF) interrogator. A proposed AN/UPX-41(C) Stage 4 certification was developed to allow the Navy to operate under less restrictive parameters but required that the Navy and Federal Aviation Administration (FAA) validate those proposed restrictions. This report provides the results of the validation effort. The effort conducted by the Volpe Center used modeling, simulation, and live testing to evaluate the AN/UPX-41(C) system’s compatibility. The live testing, which occurred August 18-21, 2014 was conducted in its entirety using four AN/UPX-41(C) digital IFF interrogators at land-based test sites (LBTS). Prior to, and following the test, modeling, simulation, and analysis was performed to assess the impact of the proposed Stage 4 certification configuration on National Airspace System (NAS) Aeronautical Surveillance and Collision Avoidance Systems (ASCAS).

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• Record URL:
  https://rosap.ntl.bts.gov/view/dot/12228
• Supplemental Notes:
  • Cover title: AN/UPX-41(C) Digital Interrogator System Compatibility with the National Airspace System: Chesapeake Fixed-Base Test
• Corporate Authors:

  Volpe National Transportation Systems Center

  Cambridge, MA  United States  02142

  Department of the Navy

  Naval Sea Systems Command (NAVSEA)
  Washington Navy Yard, DC  United States 

  Federal Aviation Administration

  Spectrum Engineering Services
  Washington, DC  United States 
• Authors:
  • Bellman, Miles
  • Gandhi, Pratik
  • Mackey, Allen
  • Pagano, Thomas
  • Shah, Vaibhav
  • Van Dongen, John
  • Wapelhorst, Leo
• Publication Date: 2015-10

Language

• English

Media Info

• Media Type: Digital/other
• Edition: Final Report
• Features: Appendices; Figures; Glossary; Maps; References; Tables;
• Pagination: 287p

Subject/Index Terms

• TRT Terms: Aircraft; Certification; Crash avoidance systems; Detection and identification systems; Electromagnetic spectrum; Field tests; Ships; Simulation; Validation
• Identifier Terms: National Airspace System
• Subject Areas: Aviation; Marine Transportation; Operations and Traffic Management; Vehicles and Equipment; I73: Traffic Control; I91: Vehicle Design and Safety;

Filing Info

• Accession Number: 01583614
• Record Type: Publication
• Report/Paper Numbers: DOT-VNTSC-NAVSEA-15-01
• Contract Numbers: 51FB15B100 NLL47; 51VHF3A100 NJ1V8
• Files: NTL, TRIS, RITA, ATRI, USDOT
• Created Date: Dec 23 2015 8:11AM