| Turbo码的距离特性及Viterbi译码方法 |
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| 引用本文： | 张中培,靳蕃.Turbo码的距离特性及Viterbi译码方法[J].西南交通大学学报,2000,35(2):174-178. |
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| 作者姓名： | 张中培 靳蕃 |
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| 作者单位： | 西南交通大学计算机与通信工程学院,四川,成都,610031 |
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| 摘 要： | Ｔｕｒｂｏ码由递归系统卷积码（ＲＳＣ）并行级联而成，从ＲＳＣ码特有的距离特性和误码率限分析了Ｔｕｒｂｏ码的优异性能。根据码距特性提出了对角交织的优化交织法。在适当译码增益损失下，提出了Ｔｕｒｂｏ码译的Ｖｉｔｅｒｂｉ译码实现方法，并用此方法进行了计算机仿真，证明了结论的正确性。
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| 关 键 词： | 译码 误码率 Viterbi译码 自由距离 通信 |
Distance Properties of Turbo-Codes and Viterbi Decoding Method |
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| ZHANG Zhong-pei,JIN Fan.Distance Properties of Turbo-Codes and Viterbi Decoding Method[J].Journal of Southwest Jiaotong University,2000,35(2):174-178. |
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| Authors: | ZHANG Zhong-pei JIN Fan |
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| Abstract: | Turbo codes are produced by parallel concatenation of recursive systemic codes (RSC), and its excellent performances are analyzed based on the free distance and bit error rate of the RSC codes. A diagonal interleave method is proposed based on the distance properties of Turbo codes. With losing little gain, a viterbi decoding method to implement Turbo codes decoding is put forward, with which the correctness of the conclusions of this paper is proved by computer simulation. |
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| Keywords: | decoding error code rate Turbo codes Viterbi decoding free distance |
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