Journal article
Improved decoding for a concatenated coding system
The concatenated coding system recommended by CCSDS (Consultative Committee for Space Data Systems) uses an outer (255,233) Reed-Solomon (RS) code based on 8-b symbols, followed by the block interleaver and an inner rate 1/2 convolutional code with memory 6. Viterbi decoding is assumed. Two new decoding procedures based on repeated decoding trials and exchange of information between the two decoders and the deinterleaver are proposed.
In the first one, where the improvement is 0.3-0.4 dB, only the RS decoder performs repeated trials. In the second one, where the improvement is 0.5-0.6 dB, both decoders perform repeated decoding trials and decoding information is exchanged between them
| Language: | English |
|---|---|
| Publisher: | IEEE |
| Year: | 1990 |
| Pages: | 1138-1144 |
| ISSN: | 00906778 and 15580857 |
| Types: | Journal article |
| DOI: | 10.1109/26.58746 |
CCSDS Channel coding Concatenated codes Consultative Committee for Space Data Systems Convolutional codes Data systems Decoding Interleaved codes Reed-Solomon code Reed-Solomon codes Telemetry Viterbi algorithm Viterbi decoding block interleaver concatenated coding system decoding deinterleaver error correction codes exchange of information inner rate 1/2 convolutional code repeated decoding trials
