United States Department of Transportation
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Results of AEROSAT channel simulation tests Q-M/PSK voice/data modem, TSC ranging modem
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1976-07-01
[PDF-1.03 MB]
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Edition:Interim report; July 1975-Jan 1976
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Abstract:Two modems which are candidates for the Aeronautical Satellite (AEROSAT
Test and Evaluation Program have been tested by the Transportation
Systems Center channel simulation facility. One was a hybrid modem
which can simultaneously transmit and receive both data at
1200 bps using differentially encoded phase-shift keying and
voice using quadrature modulation (on a single carrier.) The
other modem tested was the Transportation Systems Center
developed digital ranging modem. Both modems were evaluated
as a function of carrier to noise density with carrier to
multipath ratio as a parameter. This report presents the
results of these experiments.
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