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首先讲述了Turbo编译码的原理,然后主要对Turbo译码的最大后验概率(MAP)算法演化而来的可实现的log_MAP译码算法进行了研究。最后讨论了log_MAP算法在数字信号处理器(DSP)中的实现。
Firstly, the principle of Turbo coding and decoding is introduced. Then, the achievable log_MAP decoding algorithm evolved from the maximum a posteriori probability (MAP) algorithm of Turbo decoding is mainly studied. Finally, we discuss the implementation of log_MAP algorithm in digital signal processor (DSP).