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http://dx.doi.org/10.5515/KJKIEES.2014.25.11.1142

TC & R Communication Link Performance Analysis of Geostationary Satellite Employing PCM/PSK/PM on Super Synchronous Transfer Orbit  

Lee, Sun-Ik (Korea Aerospace Research Institute)
Yeom, Kyung-Whan (Department of Radio Science & Engineering, Chungnam National University)
Publication Information
The Journal of Korean Institute of Electromagnetic Engineering and Science / v.25, no.11, 2014 , pp. 1142-1155 More about this Journal
Abstract
The classical PCM/PSK/PM scheme has been commonly used for TC & R applications between satellites and ground stations in the S-band. We analyzed TC & R link performance between ground station and the geostationary satellite which employs PCM/PSK/PM, when the satellite are particularly on the Super Synchronous Transfer Orbit(SSTO). The satellite parameters on SSTO are assumed to be those operating on the geostationary orbit, considering heritage aspect. In the uplink, the results shown indicate that sufficient margins over 3 dB are obtained when the EIRP of ground station is greater than 65 dBW. The down link performance is of great interest. By adjusting the telemetry modulation index and ranging modulation index, we could obtain the required margin of 3.0 dB in the down link, and find out the minimum G/T of ground station. In conclusion, the previously operated ground stations during LEOP at COMS launch, can be operational when GEO injection is made using SSTO(65,000 km and 70,000 km).
Keywords
PCM/PSK/PM; TC & R; Geostationary Satellite; Modulation Loss; SSTO; Link Budget;
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Times Cited By KSCI : 2  (Citation Analysis)
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