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给出了Ｔｕｒｂｏ码编译码器的基本框架，并提出了一种三维Ｔｕｒｂｏ码的设计方案及其译码方法．针对所提出的方案进行了计算机模拟，并在对ＡＷＧＮ信道上Ｓｈａｎｎｏｎ限与编码速率Ｒ的关系进行推导的基础上，分析了三维Ｔｕｒｂｏ码的性能
The basic framework of Turbo codec is given, and a design scheme of 3D turbo code and its decoding method are proposed. The proposed scheme is simulated by computer. Based on the derivation of the relationship between Shannon limit and coding rate R on AWGN channel, the performance of 3D turbo code