并行级联卷积码的最新进展

Review of Parallel Concatenated Convolutional Code

并行级联卷积码（Turbo码）是近年来在编码理论上的一个重大突破，其性能与信道容量极限的差距可小于1dB.有着极其广阔的应用前景．这种编码方式的优异性能来源于其独特的码结构和迭代译码算法，使其成为一种接近随机编码的可译码．它的编译码思想将对编码研究产生重要影响．本文将在编译码结构，性能分析与码设计、简化算法及应用等方面对这种码的研究现状与前景作一综述．

Parallel concatenated convolutional code (turbo-code) is a break through of coding theory in recently years. It can perform less than 1dB away from the Channel capacity, thus shows great potential in various areas for future application. mis perfect performance comes form its novel structure together with cormsponding iterative decoding algorithm, which make it a near random decode-able code. its new idea will greatly affect future research of coding theory. In this paper, we will give brief review about the current state and the prospectof the research on its structure, analysis, design, simplified algorithm and applications.