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Turbo码以其优异的性能而迅速成为近年来信道编码领域研究的热点。在Turbo码的设计中,交织矩阵是影响其整体性能的重要因素,尤其是在采用小规模交织矩阵时。不同的设计产生的结果差别很大。本文提出一种交织矩阵的改进设计方法。它能够使成员码编码器网络在一帧数据编码结束后全部终结归零,从而为译码判决提供了正确的初始条件。与传统的非全归零交织矩阵相比较。分析结果表明本文提出的设计方案性能更优。
With its excellent performance, Turbo codes rapidly become the hotspot in the field of channel coding in recent years. In Turbo code design, the interleaving matrix is an important factor that affects its overall performance, especially when using a small-scale interleaving matrix. Different designs produce very different results. In this paper, an improved design method of the interleaving matrix is proposed. It enables the member code encoder network to all zero after the end of a frame of data encoding, thus providing the correct initial conditions for the decoding decision. Compared with the traditional non-all-zero-zero interleaving matrix. The analysis results show that the design proposed in this paper has better performance.