The decoding complexity is mainly determined by the trellis complexity of the outer code.
解码的复杂程度取决于外码格栅复杂程度。
In modern communication, RS code has turned into standard error correcting and coding unit as outer code, and become widely used.
由于在现代通信中，RS码作为外码成为标准的纠错编码单元，用途十分广泛。
Concatenation of an inner code and an outer code may provide a high coding gain and the capacity of a long code to correct errors.
级联码是将两个或多个单码级联，在不增加译码复杂度的情况下，可以得到高的编码增益，达到与长码相同的纠错能力。
The main contributions of this paper are proposing the algorithm and implementation on ASIC of outer code in HDTV, especially for rs code, according to the technical parameters of VSB scheme.
本文的主要贡献在于根据VSB方案中的技术参数，提出了HDTV外码中编、解码的具体算法，并给出了具体的ASIC实现，尤其是RS码部分。
The fourth chapter is this paper's emphasis , focuses on the byte processing part(outer code) module by module: data reverse transformer, de-randomizer, RS decoder, de-interleaver and synchronization.
第四章是本文的主要部分，开始分模块说明对字节处理部分的研究：数据格式反变换、解扰、RS译码、去交织和同步头搜索。
The fourth chapter is this paper's emphasis , focuses on the byte processing part(outer code) module by module: data reverse transformer, de-randomizer, RS decoder, de-interleaver and synchronization.
第四章是本文的主要部分，开始分模块说明对字节处理部分的研究：数据格式反变换、解扰、RS译码、去交织和同步头搜索。
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