hybrid concatenated convolutional coded modulation ( hctcm ) is studied . performance bound and design criteria of hctcm are given 研究了混合级联卷积编码调制,得到了它的性能限和设计准则。
in chapter 3, encoder structure and decoder structure and decoding algorithms of hybrid concatenated convolutional code ( hccc ) is studied 第三章研究了混合级联卷积编码的编译码结构、性能限和设计准则。
with the developments of the concatenated codes and turbo codes reviewed, the serially concatenated convolutional codes that are the serial counterpart of the turbo codes are introduced firstly in this paper 本文在对级联码发展历史和turbo码简要介绍的基础上,着重研究了串行级联卷积码(sccc)和串行级联网格编码调制(sctcm)的编译码方法、纠错性能和设计原则。
in the first part of this thesis, the iterative process structure which is based on the extrinsic information exchange between the siso ( soft in soft out ) component decoders of pccc ( parallel concatenated convolutional codes ) is discussed 首先以并行级联卷积码(pccc)为对象详细的讨论了分量码的软输入软输出(siso)算法和在此基础上基于外信息交换的迭代解码算法。
in chapter 1, a survey of ccc and stc, including their development is presented . in chapter 2, encoder structure, decoder structure and interleaver of parallel concatenated convolutional code ( pccc ) and serially concatenated convolutional code ( sccc ) are studied . symbol-wise siso algorithm and bit-wise siso algorithm are given 在第二章中,系统分析了并行级联卷积编码和串行级联卷积编码的编码结构、交织器的类型、译码结构以及基于符号和基于比特的siso算法。