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本文给出了一种译码方法,称之为“分组卷积码的门限叠代判决译码法”。该法综合了分组码与卷积码的特点,同时也综合了Wozencraft.Fano.Jelinek与“信息门限判决”译码的思想。它的主要性能有:1.码率R_t能接近信道容量C;2.译码平均误差可任意小;3.对于每比特译码的平均计算量与平均存储量是常数N与M,它们由R_t与C的值来决定。
This paper presents a decoding method, called “packet convolutional code threshold iterative decision decoding method.” The method combines the characteristics of block codes and convolutional codes, and also combines the idea of Wozencraft.Fano.Jelinek with the “information threshold decision” decoding. Its main properties are: 1. The rate R_t can approach the channel capacity C; 2. The average error of decoding can be arbitrarily small; 3. The average amount of computation and the average amount of memory for decoding per bit are constant N and M, R_t and C value to decide.