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环Fp^k+uFp^k上的一类常循环码 被引量:4

A class of constacyclic codes over the ring Fp^k+uFp^k
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摘要 常循环码是一类重要的纠错码,文章讨论了环Fpk+uFpk上长为n的(1+αu)-循环码、(ξi+αu)-循环码的置换等价性,并得出2种循环码的Gray像均置换等价于Fpk上长为pkn、指数为pk-1的准循环码。 Constacyclic codes is a kind of important error correcting codes.In this paper,the permutation-equivalence of (1+αu)-cyclic codes and(ξi+αu)-cyclic codes of length n over the ring Fpk+uFpk is discussed and their Gray images are permutation-equivalent to quasicyclic codes of length pkn and index pk-1 over Fpk.
出处 《合肥工业大学学报(自然科学版)》 CAS CSCD 北大核心 2011年第4期634-635,640,共3页 Journal of Hefei University of Technology:Natural Science
基金 安徽省自然科学基金资助项目(KJ2010B076)
关键词 循环码 准循环码 GRAY映射 有限链环 cyclic code quasicyclic code Gray map finite ring
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参考文献9

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二级参考文献31

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共引文献15

同被引文献38

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