| 一种构造BCM码的新方法 |
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| 引用本文： | 骆亚娟,张伟,鞠德航. 一种构造BCM码的新方法[J]. 电子学报, 2000, 28(1): 142-144 |
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| 作者姓名： | 骆亚娟 张伟 鞠德航 |
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| 作者单位： | 1. 西安电子科技大学通信工程学院,西安 710071;2. 航天总公司504所,西安 710000 |
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| 摘 要： | 由Imai与Hirakawa提出的多级编码方法,可用来构造具有任意大最小平方欧氏距离的分组调制(BCM)码.一个BCM码的性能主要取决于构成它的各个成分码,恰当地选择成分码是构造一个好的BCM码的关键.文章给出了一种新方法,通过选用不同长度的成分码来构造BCM码.仿真结果表明用此方法构造出的BCM码较传统的BCM码在性能与复杂度上有明显的改善.
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| 关 键 词： | BCM 欧氏距离 多级级连译码 |
| 文章编号： | 0372-2112 (2000) 01-0142-03 |
| 收稿时间： | 1998-12-15 |
A New Method for Constructing BCM Codes |
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| LUO Ya-juan,ZHANG Wei,JU De-hang. A New Method for Constructing BCM Codes[J]. Acta Electronica Sinica, 2000, 28(1): 142-144 |
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| Authors: | LUO Ya-juan ZHANG Wei JU De-hang |
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| Affiliation: | 1. School of Communication Engineering,Xidian Univ.,Xi'an 710071,China;2. Xi'an Institute of Space Radio Technology,Xi'an 710000,China |
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| Abstract: | Multilevel coding technique proposed by and Hirakawa can be used to construct BCM code with arbitrarily large minimum squared Euclidean distance,The performance and complexity of a BCM code mainly depend on its component codes To construct good BCM codes ,a proper selection of component codes is of great importance The paper presents a new method to construct BCM codes in which variant length block codes are used as component codes. Simulation results show BCM codes constructed by this method have better performance and complexity than conventional ones |
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| Keywords: | BCM euclidean distance multistage decoding |
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