| LDPC码在对流层散射通信中的性能分析 |
| |
| 引用本文： | HAN Ming-yue,徐松毅,JIA Wei.LDPC码在对流层散射通信中的性能分析[J].无线电通信技术,2008,34(4). |
| |
| 作者姓名： | HAN Ming-yue 徐松毅 JIA Wei |
| |
| 作者单位： | 中国电子科技集团公司第五十四研究所,河北,石家庄,050081 |
| |
| 摘 要： | 阐述了对流层散射信道恶劣的传输环境,表明它的衰落特性。介绍了LDPC码的基本原理,分析了迭代译码的更新过程以及LDPC码的内交织性。为了在对流层散射通信中有效应用LDPC码,研究了信道特性与编码性能之间的关系,对LDPC码在散射通信中的性能进行了仿真,结果表明,在对流层散射通信中,信道的衰落相关性对编码性能有非常重要的影响,给出了相应的参考曲线,为LDPC码的应用提供先验信息。
|
| 关 键 词： | 散射通信 LDPC 衰落相关性 性能分析 |
The Performance Analysis of LDPC Codes in Troposcatter Communication |
| |
| HAN Ming-yue,XU Song-yi,JIA Wei.The Performance Analysis of LDPC Codes in Troposcatter Communication[J].Radio Communications Technology,2008,34(4). |
| |
| Authors: | HAN Ming-yue XU Song-yi JIA Wei |
| |
| Abstract: | The bad transmission environment of troposcatter communication channel is illustrated and its fading characteristic is indicated.LDPC codes are introduced briefly and their iterative decoding process and build-in interleavers are analyzed.It is necessary to study the relation between the channel characteristic and the coding gain so that LDPC codes can be applied efficiently.The performance simulation of LDPC codes in troposcatter communication is conducted.The results show that fading correlation has important influence on coding performance,and the corresponding curves are introduced,which can be used for the application of LDPC codes. |
| |
| Keywords: | troposcatter communication LDPC fading correlation performance analysis |
| 本文献已被 维普 万方数据 等数据库收录！ |
|
