| 非等价的（4,7）汉明码字矩阵数 |
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| 引用本文： | 刘瑞英.非等价的（4,7）汉明码字矩阵数[J].保定师专学报,2008(4):31-32. |
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| 作者姓名： | 刘瑞英 |
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| 作者单位： | 河北大学数学与计算机学院;河北农业大学理学院; |
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| 摘 要： | 给出一种q元汉明码校验矩阵的构造方法,得出一般意义上q元汉明码是等价的.但通过列的置换以及某些列与Fq非零元素的数乘,发现（4,7）汉明码中有非等价的码字矩阵数为30.
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| 关 键 词： | 汉明码 校验矩阵 非等价的矩阵码字 |
The Number of Nonequivalent (4,7) Haming Codeword Matrixes |
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| LIU Rui-ying.The Number of Nonequivalent (4,7) Haming Codeword Matrixes[J].Journal of Baoding Teachers College,2008(4):31-32. |
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| Authors: | LIU Rui-ying |
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| Institution: | LIU Rui-ying(College of Mathematics , Computer,Hebei University,Baoding 071002,China,College of Science,Agricultural University of Heibei,Baoding 071001,China) |
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| Abstract: | This paper presents the structure method of Haming codeword checking matrix.In generally these matrixes are equivalent.From the matrix varies,it is proved that the number of nonequivalent(4,7) Haming codeword matrixes is respectively 30. |
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| Keywords: | Haming codeword check matrix numbers of nonequivalent codeword |
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