RECOMMENDATION ITU-R BO.1130-3 - System description and selection for digital satellite ... ANNEX 1 - Annex description of digital BSS (sound) systems 1 Summary of Digital System A 2 Summary of Digital System B 3 Summary of Digital System D 4 Summary of Digital System E ANNEX 2 - Digital System A 1 Introduction 2 Use of a layered model 3 Application layer 3.1 Facilities offered by the System 3.2 Audio quality 3.3 Transmission modes 4 Presentation layer 4.1 Audio source encoding 4.2 Audio decoding 4.3 Audio presentation 4.4 Presentation of Service Information 5 Session layer 5.1 Programme selection 5.2 Conditional access 6 Transport layer 6.1 Programme services 6.2 Main service multiplex 6.3 Ancillary data 6.4 Association of data 7 Network layer 7.1 ISO audio frames 8 Data link layer 8.1 The transmission frame 9 The physical layer 9.1 Energy dispersal 9.2 Convolutional encoding 9.3 Time interleaving 9.4 Frequency interleaving 9.5 Modulation by 4-DPSK OFDM 9.6 Spectrum of the RF signal 10 RF performance characteristics of Digital System A 10.1 BER vs. C/N (in 1.5 MHz) in a Gaussian channel at 226 MHz 10.2 BER vs. C/N (in 1.5 MHz) in a Rayleigh channel at 226 MHz 10.3 BER vs. C/N (in 1.5 MHz) in a Rayleigh channel at 1 500 MHz 10.4 Audio service availability ANNEX 3 - Digital System B 1 Introduction 2 System overview 3 System description 3.1 Transmitter 3.2 Receiver 4 Performance 4.1 AWGN channel 4.2 Satellite channel 4.3 Single frequency network ANNEX 4 - Digital System D 1 Introduction 2 System overview 3 MPEG Layer III audio coding algorithm 3.1 General 3.2 MPEG-1 Layer III 3.3 MPEG-2 Layer III (half sampling rate extension) 3.4 MPEG-2.5 Layer III (extension toward very low sampling rates) 3.5 Layer III audio quality - status and future improvements 4 Radio receiver operation and interfaces 4.1 Receiver operation 4.2 SCH functions: service types, subscription services 4.3 Decoding an audio service 4.4 Overall RF/IF selectivity 4.5 Receive BER objectives and margins 4.6 Receiver protection against interference/augmentation strategies 5 Link budgets 5.1 Processing transponder 5.2 Transparent transponder REFERENCES BIBLIOGRAPHY ANNEX 5 -Digital System E 1 Introduction 2 System overview 3 Physical layer and modulation 3.1 Frequency band 3.2 Bandwidth 3.3 Polarization 3.4 Modulation 3.5 Chip rate 3.6 Signature sequence and spreading sequence 3.7 Data spreading 3.8 Roll-off factor 3.9 The number of CDM channels 4 Channel coding 4.1 Error correction coding 4.2 Interleaving 4.3 Pilot channel 5 Service multiplexing 6 Source coding 6.1 Audio source coding 6.2 Data coding 7 Example of an application of Digital System E 7.1 Satellite link 7.2 Gap filler 7.3 Experimental results of high-speed vehicular receptions 7.4 Receiver model