摘要
介绍了一种基于改进型Chase算法的RS(Reed-Solomon)码软判决译码方法,阐述了该方法在信道编码应用中的核心思想,比较了各种Chase算法的优劣,并对RS(14,10)码的自适应软判决译码算法在DSP中的实现方法进行了研究,提出了用翻转表法实现试探序列的快速产生方法。实验证明该译码算法效率高,纠错能力强,适合实时性要求高的数据通信场合。
A soft-decision algorithm of Reed-Solomon（RS） code based on an improvement of Chase algorithm is introduced. The core of this algorithm is given, and their characteristics are compared, then the paper makes a deep research on the implementation of an auto-adaptive RS soft-decision decoding algorithm with DSP. The paper also proposes a fast-generating method of try sequence with method of reverse table. The experiment shows that it is high-efficient, and it has the ability of correcting errors, especially, it is adapted to the occasion of data communication which is exigent for real-time.
出处
《电子工程师》
2005年第9期12-14,42,共4页
Electronic Engineer
