ATS-5 Multipath/Ranging/Digital Data L-Band Experimental Program. Phase IVD. Additional Tests. Volume 2. Overland Multipath, Pacific Multipath, Scintillation Tests.
Final rept. 28 Jun 72-28 Jul 73.
BOEING COMMERCIAL AIRPLANE CO SEATTLE WASH
Pagination or Media Count:
Experimental results at L-band are presented for eight overland multipath flights, six overocean multipath flights in the Pacific region, and a series of fixed-link scintillation measurements within the 1545- to 1655-MHz frequency band allocated for future aeronautical satellite services. Test signals were transmitted from the NASARosman ground station to an FAA KC-135 jet airplane via the NASA ATS-5 satellite. Overland multipath data were acquired at elevation angles between 14 degrees and 19 degrees over marshy, hilly, and mountainous terrain in northern Canada and Alaska for both summer and winter conditions. These data together with the Pacific region overocean multipath data were analyzed to determine scatter reflection coefficients, circular polarization sense reversal characteristics, and power spectral density. Scintillation test data were analyzed to determine signal time histories, amplitude histograms, S2 scintillation parameter, statistical fade depths, and power spectra. Author
- Air Navigation and Guidance