Computer Engineering and Applications ›› 2010, Vol. 46 ›› Issue (13): 51-52.DOI: 10.3778/j.issn.1002-8331.2010.13.015
• 研究、探讨 • Previous Articles Next Articles
RUI Yi-he1,ZHU Shi-xin2
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芮义鹤1,朱士信2
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Abstract: In this paper,the Gray map ?准 form R=F2+uF2 to F2 is given,and the Gray map is proved to be weight-preserving and distance-preserving.The binary image of a linear code C over ring R,called Φ(C) is Hamming distance invariant,if C is Lee distance invariant.
Key words: linear code, Gray map, Lee weight, Hamming weight, distance invariant code
摘要: 在有限环R=F2+uF2与F2之间定义了一个新的Gray映射。证明了该映射是(Rn,Lee重量)到(F2n,Hamming重量)的等重等距映射,同时证明了环F2+uF2上线性码C的二元像Φ(C)是距离不变码,而且如果环F2+uF2上线性码C是Lee恒距码,则二元像Φ(C)是F2上Hamming恒距码。
关键词: 线性码, Gray映射, Lee重量, Hamming重量, 恒距码
CLC Number:
TN911.22
RUI Yi-he1,ZHU Shi-xin2. Gray map over ring F2+uF2[J]. Computer Engineering and Applications, 2010, 46(13): 51-52.
芮义鹤1,朱士信2. 环F2+uF2上的Gray映射 [J]. 计算机工程与应用, 2010, 46(13): 51-52.
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URL: http://cea.ceaj.org/EN/10.3778/j.issn.1002-8331.2010.13.015
http://cea.ceaj.org/EN/Y2010/V46/I13/51