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Weight distribution of cosets of 2-error-correcting binary BCH codes of length 15, 63 and 255

机译:长度为15、63和255的2个纠错二进制BCH码的陪集的权重分布

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摘要

The weight distributions of cosets are not known for the class of binary 2-error-correcting BCH codes of length n=2/sup m/-1, m even (the nonuniformly packed case). By using the graph theoretical concepts of the combinatorial matrix of a code and an r-partition design introduced in previous works, the authors obtain these distributions of cosets in the three particular cases of length 15, 63, and 255. It is observed that in these three cases the number of distinct weight distributions is a constant equal to 8.
机译:对于长度为n = 2 / sup m / -1,甚至为m(非均匀装箱)的二进制2纠错BCH码,未知的陪集权重分布。通过使用代码的组合矩阵的图论概念和先前工作中介绍的r分区设计,作者在长度为15、63和255的三种特定情况下获得了陪集的这些分布。在这三种情况下,不同的重量分布的数量等于8。

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