ccsds 131.0-b-2

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CCSDS RECOMMENDED STANDARD FOR TM SYNCHRONIZATION AND CHANNEL CODINGCONTENTSSectionPage1 INTRODUCTION .......................................................................................................... 1-11.1 PURPOSE ............................................................................................................... 1-11.2 SCOPE .................................................................................................................... 1-11.3 APPLICABILITY ................................................................................................... 1-11.4 RATIONALE .......................................................................................................... 1-11.5 DOCUMENT STRUCTURE ................................................................................. 1-21.6 CONVENTIONS AND DEFINITIONS................................................................. 1-31.7 PATENTED TECHNOLOGIES ............................................................................ 1-51.8 REFERENCES ....................................................................................................... 1-52 OVERVIEW ................................................................................................................... 2-12.1 ARCHITECTURE .................................................................................................. 2-12.2 SUMMARY OF FUNCTIONS .............................................................................. 2-12.3 INTERNAL ORGANIZATION OF SUBLAYER ................................................. 2-33 CONVOLUTIONAL CODING .................................................................................... 3-13.1 OVERVIEW ........................................................................................................... 3-13.2 GENERAL .............................................................................................................. 3-13.3 BASIC CONVOLUTIONAL CODE SPECIFICATION ....................................... 3-23.4 PUNCTURED CONVOLUTIONAL CODES ....................................................... 3-44 REED-SOLOMON CODING ....................................................................................... 4-14.1 OVERVIEW ........................................................................................................... 4-14.2 GENERAL .............................................................................................................. 4-14.3 SPECIFICATION ................................................................................................... 4-14.4 DISCUSSION ......................................................................................................... 4-65 CONCATENATED CODING ...................................................................................... 5-16 TURBO CODING .......................................................................................................... 6-16.1 OVERVIEW ........................................................................................................... 6-16.2 GENERAL .............................................................................................................. 6-16.3 SPECIFICATION ................................................................................................... 6-1CCSDS <strong>131.0</strong>-B-2 Page vi August 2011
CCSDS RECOMMENDED STANDARD FOR TM SYNCHRONIZATION AND CHANNEL CODINGCONTENTS (continued)SectionPage7 LOW-DENSITY PARITY-CHECK CODING ........................................................... 7-17.1 OVERVIEW ........................................................................................................... 7-17.2 GENERAL .............................................................................................................. 7-17.3 LOW-DENSITY PARITY-CHECK CODE WITH RATE 223/255 ........................ 7-27.4 LOW-DENSITY PARITY-CHECK CODE FAMILY WITHRATES 1/2, 2/3, AND 4/5 ...................................................................................... 7-78 FRAME SYNCHRONIZATION .................................................................................. 8-18.1 OVERVIEW ........................................................................................................... 8-18.2 THE ATTACHED SYNC MARKER (ASM) ........................................................ 8-28.3 ASM BIT PATTERNS ........................................................................................... 8-28.4 LOCATION OF ASM ............................................................................................ 8-48.5 RELATIONSHIP OF ASM TO REED-SOLOMON, TURBO, ANDLDPC CODEBLOCKS AND CODEWORDS ....................................................... 8-48.6 ASM FOR EMBEDDED DATA STREAM........................................................... 8-59 PSEUDO-RANDOMIZER ............................................................................................ 9-19.1 OVERVIEW ........................................................................................................... 9-19.2 PSEUDO-RANDOMIZER DESCRIPTION .......................................................... 9-19.3 SYNCHRONIZATION AND APPLICATION OF PSEUDO-RANDOMIZER ... 9-29.4 SEQUENCE SPECIFICATION ............................................................................. 9-29.5 LOGIC DIAGRAM ................................................................................................ 9-310 TRANSFER FRAME LENGTHS .............................................................................. 10-110.1 OVERVIEW ......................................................................................................... 10-110.2 GENERAL ............................................................................................................ 10-110.3 CASE 1: UNCODED ........................................................................................... 10-110.4 CASE 2: CONVOLUTIONAL ONLY ................................................................ 10-110.5 CASE 3: REED-SOLOMON ONLY .................................................................. 10-110.6 CASE 4: CONCATENATED .............................................................................. 10-210.7 CASE 5: TURBO ................................................................................................. 10-210.8 CASE 6: LDPC .................................................................................................... 10-311 MANAGED PARAMETERS ..................................................................................... 11-111.1 OVERVIEW ......................................................................................................... 11-111.2 GENERAL ............................................................................................................ 11-1CCSDS <strong>131.0</strong>-B-2 Page vii August 2011
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