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针对实现基于SOVA的Turbo码译码算法实现的各个环节,阐述了使译码器内外信息度量匹配的数据表示方法,指出了信息度量值的变化规律和数据长度的确定准则,提出了帧结尾加长处理,比传统的BR—SOVATurbo译码性能提高0.5dB左右。
Aiming at the realization of various steps of the decoding algorithm of Turbo codes based on SOVA, this paper expounds the data representation method which makes the metric information match inside and outside the decoder, points out the rules of the change of information metric value and the criterion of data length, Processing, than the traditional BR-SOVATurbo decoding performance increased by about 0.5dB.