分组码的格图结构和译码
TRELLIS STRUCTURES OF BLOCK CODES AND DECODING
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摘要: 本文讨论了分组码的格图结构,给出了某些BCH码L段格图结构,并据此提出了BCH码的快速最大似然译码算法,同时讨论了qm元分组码的q元映象的译码问题,给出了q元映象的直和划分结构和相应的译码算法。Abstract: Trellis structures of block codes are discussed. L-section trellis structures of some BCH codes are presented. A fast maximum likelihood decoding algorithm for BCH codes is proposed correspondingly, Decoding porblem of q-ary images of qm-ary block codes is also discussed. The direct sum partition and the associated decoding algorithms are given for the images.
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