IMPACT OF SATELLITE AERONAUTICAL CHANNEL ON MODEM SPECIFICATIONS. PHASE II. OCEANIC MULTIPATH MEASUREMENTS AND MODEM CONCEPTS

The report completes the analysis initiated in the Phase I report of the effects of oceanic multipath on ranging and data modems for satellite air traffic control systems. The interaction between multipath antenna and apparent measured multipath is determined using a 'vector Kirchoff' model of ocean scattering. Procedures for antenna design, sea state sensing, and multipath measurements are detailed, and tone ranging performance is computed for various antenna designs. Consideration is given to the problem of tone probing on a 50 KHz hard limiting AEROSAT channel while data transmission is taking place. The problem of how much measurement time is needed to achieve a reliable measurement of error probability in data transmission over the AEROSAT channel is addressed.

• Record URL:
  • https://rosap.ntl.bts.gov/view/dot/9264
• Supplemental Notes:
  • Prepared in cooperation with CNR, Inc., Newton Upper Falls, Mass. See also report on Phase 1 dated Mar 74, AD-778 390.
• Corporate Authors:

  Transportation Systems Center

  55 Broadway, Kendall Square
  Cambridge, MA  United States  02142

  Federal Aviation Administration

  800 Independence Avenue, SW
  Washington, DC  United States  20591

  CNR, Incorporated

  Newton Upper Falls, MA  United States 
• Authors:
  • Bello, P A
  • Chase, D
  • DeRosa, J
  • Weng, L J
  • Bello, M G
• Publication Date: 1975-1

Media Info

• Media Type: Digital/other
• Pagination: 195 p.

Subject/Index Terms

• TRT Terms: Air traffic control; Antennas; Data communications; Modems; Multipath transmission; Performance; Satellite communication; Subroutines
• Identifier Terms: FORTRAN (Computer program language)
• Uncontrolled Terms: Data links
• Old TRIS Terms: Aircraft antennas; Performance engineering
• Subject Areas: Operations and Traffic Management;

Filing Info

• Accession Number: 00090300
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: TSC-FAA-74-27 Final Rpt.
• Contract Numbers: DOT-TSC-516-2
• Files: NTIS, NTL, USDOT
• Created Date: Apr 22 1975 12:00AM