Coder, decoder its method, data processing system, memory medium and signal.

编码装置、解码装置及方法，数据处理系统，存储介质及信号。

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Ternary optical coder , decoder and ternary logical calculus belong to key components of ternary optical computer, and they are the base of implementing other components of the optical computer.

三值光编码、解码器和三值逻辑运算器是三值光计算机关键部件，是实现三值光计算机其它部件的基础。

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Then, the code theory and time-domain iterative decode algorithm of RS code is introduced, RS coder and decoder are designed and implemented in this base.

接着介绍了R S码的编码原理和时域迭代译码算法，在此基础上设计实现RS码编码器和译码器。

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