基于串行级联网格图的串行级联卷积码性能分析  

Research on Serial Concatenation Convolutional Codes Based on Trellis

作　　者：张少甫[1] 李晓波[1,2] 程旭 

机构地区：[1]中国人民解放军驻沈阳飞机工业(集团)有限公司军事代表室,辽宁沈阳110034 [2]西北工业大学电子信息学院,陕西西安710129

出　　处：《飞机设计》2012年第3期58-61,共4页Aircraft Design

摘　　要：分析了串行级联卷积码的编译码原理,提出了一种可直观表示串行级联卷积码编码原理的串行级联网格图,并在信道模型中对串行级联卷积码和Turbo码的性能进行了仿真比较。结果表明,在适当的信噪比范围内,串行级联卷积码比Turbo码有更好的迭代增益和交织增益,可有效地避免Turbo码的"错误平层"效应。This paper analyzed the principal of coding and decoding of serial concatenation convolutional codes(SCCC) and proposes a trellis to express the encode principal intuitively.It gave simulations and comparations between SCCC and Turbo codes,which is applied in common to communication system.The simulate results in channel models illustrate that in sutible range of SNR,SCCC not only can offer superior performance in both iterative gain and interleaver gain,but also can avoid the error floor effect of Turbo codes.

关 键 词：串行级联卷积码 TURBO码 错误平层 

分 类 号：TN911.2[电子电信—通信与信息系统]