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.
- Prepared in cooperation with CNR, Inc., Newton Upper Falls, Mass. See also report on Phase 1 dated Mar 74, AD-778 390.
Transportation Systems Center55 Broadway, Kendall Square
Cambridge, MA United States 02142
Federal Aviation Administration800 Independence Avenue, SW
Washington, DC United States 20591
CNR, IncorporatedNewton Upper Falls, MA United States
- Bello, P A
- Chase, D
- DeRosa, J
- Weng, L J
- Bello, M G
- Publication Date: 1975-1
- Pagination: 195 p.
- 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;
- 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, USDOT
- Created Date: Apr 22 1975 12:00AM