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Improved binary codes and sequence families from Z/sub 4/-linear codes

机译:从Z / sub 4 /-线性代码改进的二进制代码和序列族

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摘要

A bound on exponential sums over Galois rings is used to construct a nested chain of Z/sub 4/-linear binary codes and binary sequences. When compared with the chain of Delsarte-Goethals'(1975) codes, the codes in the new chain offer a larger minimum distance for the same code size. The binary sequence families constructed also make use of Nechaev's (1991) construction of a cyclic version of the Kerdock code. For a given value of maximum correlation, the binary sequences are shown to have a family size considerably larger than the best sequence families known.
机译:Galois环上的指数和的界用于构造Z / sub 4 /线性二进制代码和二进制序列的嵌套链。与Delsarte-Goethals(1975)的代码链进行比较时,对于相同的代码大小,新链中的代码提供了更大的最小距离。构造的二进制序列族还利用Nechaev(1991)构造的Kerdock代码的循环版本。对于给定的最大相关值,二进制序列显示的族大小比已知的最佳序列族大得多。

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