远程光纤通信系统需要高效、高性能的前向纠错码。采用组合设计构造了RA码交织器,得到无4环、高码率的系统规则RA码,将其应用在远程光纤通信系统中,在三种光纤信道模型下进行了仿真。结果表明,基于组合设计的RA码在光纤信道中具有较好的性能,且在χ~2信道模型下的性能优于高斯信道。 Remote optical fiber communication systems require efficient, high-performance forward error correction code. A RA code interleaver was constructed by using a combination design, and a system rule RA code without 4-ring and high code rate was obtained. It was applied to the remote optical fiber communication system and simulated under three kinds of fiber channel models. The results show that the RA codes based on the combined design have good performance in the fiber channel, and the performance of the RA codes in the χ ~ 2 channel model is better than that of the Gaussian channel.