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超短波波段数据通信与卫星通信已被广泛应用。在这些信道中都存在较强的多径衰落,并且为克服两个波段中的多种干扰,纠正随机错误和突发错误,RS编码被普遍选为信道编码方案。RS码是线性分组码中纠突发错误能力最强,效率最高的编码,Turbo码是可以接近香农限的编码方案。文章提出RS编码与Turbo码的级联码编码方案和解码算法,适当选择参数,并通过仿真验证了方案的正确性与可行性。
Ultra-shortwave band data communications and satellite communications have been widely used. There are strong multipath fading in these channels, and RS code is generally chosen as the channel coding scheme to overcome many kinds of interference in two bands and correct random errors and burst errors. The RS code is the code with the highest error correction ability and highest efficiency in linear block codes. The Turbo code is a coding scheme that can be close to Shannon’s limit. In this paper, the coding scheme and decoding algorithm of concatenated code between RS code and Turbo code are proposed, and the parameters are selected properly. The correctness and feasibility of the scheme are verified by simulation.