SATELLITE COMMUNICATION SYSTEM AND DATA TRANSMISSION METHOD

The present invention relates to a satellite communication system in which the user satellite (2) and the terrestrial station (3) transmit data by way of the data relay satellite (1). The user satellite (2) and the terrestrial station (3) include FEC ENCs (24, 34)/FEC DECs (25, 35) that perform erro...

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Bibliographische Detailangaben
Hauptverfasser:	INOUE, TOMOKA, MIZUOCHI, TAKASHI
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY TRANSMISSION TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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Beschreibung
Zusammenfassung:	The present invention relates to a satellite communication system in which the user satellite (2) and the terrestrial station (3) transmit data by way of the data relay satellite (1). The user satellite (2) and the terrestrial station (3) include FEC ENCs (24, 34)/FEC DECs (25, 35) that perform error correction encoding onto transmission data and decoding onto the reception data that is subjected to the error correction encoding, and the data relay satellite (1) includes format converting units (14, 15) that convert, based on a modulation scheme adopted for the transmission channel to the user satellite (2) and a modulation scheme adopted for the transmission channel to the terrestrial station (3), a signal received through one transmission channel to a format corresponding to the other transmission channel and thereby generate a transmission signal.