| RSC卷级码中的自结尾序列和最小码重 |
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| 引用本文： | 张卫党,袁聪,王新梅.RSC卷级码中的自结尾序列和最小码重[J].系统工程与电子技术,2003,25(10):1183-1185. |
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| 作者姓名： | 张卫党 袁聪 王新梅 |
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| 作者单位： | 1. 西安电子科技大学ISDN国家重点实验室,陕西,西安,710071;郑州大学信息工程学院,河南,郑州,450052
2. 西安电子科技大学ISDN国家重点实验室,陕西,西安,710071 |
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| 基金项目： | 国家自然科学基金资助课题 (60 2 72 0 5 7) |
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| 摘 要： | 对自结尾输入序列进行了研究 ,证明了自结尾输入序列的若干性质 ,揭示了自结尾输入序列与RSC码的最小码重关系。指出较短的自结尾输入序列通常产生较轻的输出码重。尤其对一类重量为 2的自结尾序列给予了特别关注 ,并进行了深入研究。最后给出了RSC码最小码重的一个上限 ,并通过例子说明这个上限是很紧的 ,很多情况下就是最小码重。
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| 关 键 词： | 编码器 自由距 码重 |
| 文章编号： | 1001-506X(2003)10-1183-03 |
| 修稿时间： | 2002年10月8日 |
Self-Terminated Input Sequences and Free Distances of the RSC |
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| ZHANG Wei-dang.Self-Terminated Input Sequences and Free Distances of the RSC[J].System Engineering and Electronics,2003,25(10):1183-1185. |
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| Authors: | ZHANG Wei-dang |
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| Institution: | ZHANG Wei-dang~ |
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| Abstract: | An in-depth study on the self-terminated input sequences is presented. Several features about self-terminated input sequences are proved, and the relations between the self-terminated input sequences and the low weights of RSC are derived. It is shown that a shorter self-terminated input sequence usually produces a lower output. A special consideration is on the weight 2 self-terminated input sequences and intensive research work is done. Finally, a very tight upper bound of RSC's free distance is given, which sometimes is equal to the free distance. |
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| Keywords: | Coder Free distance Code weight |
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