ITU R BO 712:1992
ITU R BO 712:1992 High-quality Sound/data Standards For The Broadcasting-satellite Service In The 12 Ghz Band
Table of Contents
ANNEX1-Highqualitysound/datastandardsforthebroadcasting-satelliteserviceinthe12GHzband
1Introduction
2Summarydescriptionofthesystems
2.1Thedigitalsatelliteradio(DSR)system
2.2MAC/packetfamilyfull-channeldigitalmode
2.3Themulti-channeldigitalsound/data(MDS)system
3Conclusion
APPENDIX1TOANNEX1-SpecificationsoftheDSRsystem
1Introduction
2Encodingofthesoundsignal
2.1Sourcesignal
2.2Formationofsoundsignalblocks
2.3Transmissionformat
3Multiplexing
3.1General
3.2Structureofthemainframe
3.3Structureofthesuperframe
3.4Useofthespecialservicebits
3.5Useoftheadditionalinformationbits
4ModulationandRFtransmission
4.1Modulationtechnique
4.2Scrambling
4.3Differentialcoding
4.4SpectrumshapingmodeoftheMAC/packetfamilysystems
4.5Modulationstates
ANNEX1TOAPPENDIX1-Programme-relatedinformation(PI)
interfaceintheDSRsoundbroadcast
receiver
ANNEX2TOAPPENDIX1-Packetstructureforprogramme-related
information(PI)
ANNEX3TOAPPENDIX1-Modulation
ANNEX4-Spectrummaskfortheearthstation
ANNEX5TOAPPENDIX1-Datatransmission
APPENDIX2TOANNEX1-Technicaldescriptionofthefull-channel
digitalmodeoftheMAC/packet
familysystems
1Introduction
2Thetime-divisionmultiplexstructure
3Datatransmittedinline625relevanttothefull-channel
digitalmode
3.1Staticdataframe(SDF)
3.2Repeateddataframe(RDF)
4Serviceidentification(SI)channelinthefull-channel
digitalmode
APPENDIX3TOANNEX1-SpecificationsoftheMDSsystem
1Introduction
2Signalencoding
2.1Pre-emphasis
2.2Sampling
2.314/10companding
2.4Rangebit
2.5Conditional-accessscheme
3Multiplexing
3.1Lowermultiplexingstage
3.2Highermultiplexingstage
4ModulationandRFtransmission
4.1Modulation
4.2Additionalerrorcorrection(MDS2)