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[Post-TeleCom sofeware systems] 16QAM DL : 0: 16QAM因其高频谱利用率而被第三代移动通信增强型技术HSDPA采用。由于Turbo译码需要软信息输入，因此，解调输出需要计算比特软信息（LLR）。本文分析了LLR理论算法并在此基础上导出了简化算法。-16QAM its high spectral efficiency have been enhanced third-generation mobile communication technology HSDPA use. Turbo decoding requires soft information as input, therefore, need to compute soft output demodulation information (LLR). This paper analyzes the LLR theory based on the algorithm derived in this simplified algorithm.
Date : 2025-12-20 Size : 121kb User : 朱敏
[Post-TeleCom sofeware systems] QAM_Mod_SoftDemod DL : 0: BPSK,QPSK,16QAM,64QAM调制，以及软比特提取，软比特信息输入译码器，进行软判决译码。-BPSK, QPSK, 16QAM, 64QAM modulation and soft bit extracting, soft bit information input to the decoder and conduct soft-decision decoding.
Date : 2025-12-20 Size : 2kb User : queen
[Post-TeleCom sofeware systems] Conv_encodeaaViterbi_decode DL : 1: 卷积编码，QAM解调器的软比特信息输入viterbi译码器进行软判决译码。-Convolution coding, the soft bit information QAM demodulator input viterbi decoder and soft decision decoding.
Date : 2025-12-20 Size : 2kb User : queen