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1966年提出的级连码是一类纠错能力强的渐近好码,它将在空间通信中得到广泛应用。本文研究RS/Viterbi级连码,从理论上证明了它的性能满足Zyablov限;探讨了RS/Viterbi级连码的编译码方法,对RS码的连分式译码方法作了改进,使之更适于实用。
The cascaded code proposed in 1966 is a class of asymptotic good code with strong error correction capability, which will be widely used in space communications. In this paper, we study the RS / Viterbi cascades, and prove that the performance of the RS / Viterbi cascades satisfies the Zyablov limit theoretically. We also discuss the coding and decoding of RS / Viterbi cascades, More suitable for practical.