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- 2016
M维软解调的FH/MFSK系统抗PBNJ性能分析
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Abstract:
针对FH/MFSK系统，提出一种MFSK信号的M维软解调能量信息，作为译码器软输入的方法，避免了近似比特对数似然信息（LLR）的计算，并结合卷积码，给出了相应的软译码算法。理论推导了采用该算法的FH/MFSK系统在AWGN和Rayleigh衰落信道下抗PBNJ性能，给出了BER的上界闭合表达式。计算机仿真验证了理论推导的正确性，并与近似比特LLR和硬判决2种译码器输入信息的FH/MFSK系统进行对比，证明该算法获得了明显的抗PBNJ处理增益。
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