交织器对Turbo码性能影响  

Analysis the Impact of Interleaver on Turbo Code

作　　者：甄云卉[1] 路平[1] 云超[1] 

机构地区：[1]军械工程学院光学与电子工程系,河北石家庄050003

出　　处：《计算机与网络》2009年第16期45-47,共3页Computer & Network

摘　　要：Turbo码又称并行级联卷积码,是一种传输性能好、延时短、精确度高的好码。在Turbo码的应用过程中,交织器可以提高抗突发错误的能力,改变码字在传递过程中的重量分布,保证了传输的可靠性,发挥了极其重要的作用。重点介绍了应用于Turbo码的几种交织器,分析了其工作原理,比较了应用性能,并进行了仿真。经对比发现,伪随机交织器的性能相对良好,有很大的应用空间.Turbo code is also called PCCC,it features well transmitting, low delay and high accuracy. During the application of Turbo code, the interleaver can improve the ability of resisting burst errors, exchange its weight distribution in transmitting, assure the reliability of transmitting, and play a most important role. This paper introduces several interleavers used for Turbo code, analyses their operating principles, compares their performances and performs simulation by the computer. After comparison, it can be found that the performance of pseudo-random interleaver is better, and it has large room for application.

关 键 词：TURBO码 分组交织器 伪随机交织器 

分 类 号：TN911.22[电子电信—通信与信息系统]